The document describes a lab experiment using a PowerFlex 400 drive to control a fan motor and maintain a constant air pressure using a PID loop. The objectives are to configure process PID control for the fan, verify the drive setup, monitor PID variables using DriveObserver software, and tune the PID regulator. It provides instructions on setting up the equipment, configuring the PID reference and feedback signals, enabling the PID regulator, verifying operation, viewing PID variables, and tuning the PID gains.
Pcu230 pi fan_controlwithpf400drives_rev_aconfidencial
The document provides instructions for using a PowerFlex 400 drive to control a fan motor's speed using a PID loop to maintain a constant air pressure. Key steps include:
1. Configuring the drive for PID control with the setpoint coming from the PID regulator and feedback from an analog input monitoring air pressure.
2. Setting up DriveObserver software to monitor the PID setpoint, fan speed output, and air pressure feedback for tuning the PID gains.
3. Adjusting the proportional, integral, and differential gains while observing the system response to changes in airflow demand until the PID loop maintains steady control without overshoot or undershoot.
This document provides instructions for a hands-on lab using a PowerFlex 400 drive to control a pump motor with a PID loop. The drive will maintain a constant flow from the pump regardless of demand by using the built-in PID controller. Students will configure the PID settings, monitor the process using DriveObserver software, and tune the PID gains to minimize overshoot and undershoot in response to setpoint changes. The objectives are to familiarize students with process PID control of flow using variable frequency drives.
1. The document provides instructions for setting up and tuning a PowerFlex 40 drive to control a fan motor using PID loop control to maintain a constant pressure.
2. Key steps include connecting the fan and pressure sensor, enabling the PID controller with a setpoint, and tuning the proportional, integral and differential gains to minimize overshoot and undershoot in response to changes in damper position.
3. The document describes optimizing the PID loop response by adjusting the proportional gain, integral time, acceleration/deceleration parameters, and differential gain while monitoring the feedback and output frequency signals.
Pcu230 pi pump_controlwithpf400drives_rev_aconfidencial
This document provides instructions for using a PowerFlex 400 drive to control pump flow using a PID loop. The lab objectives are to configure process PID for pump flow control, view PID variables, and tune the PID regulator. Setup instructions describe connecting the drive, pump, and computer software. Programming instructions explain configuring reference and feedback signals and tuning the PID regulator by adjusting gain parameters to minimize overshoot and undershoot in response to changes in flow demand.
This document provides instructions for setting up and using a Direct/Residual Shear Apparatus machine. The summary includes:
1) The machine arrives ready for use with calibrated instrumentation already installed and assigned to inputs. Users should verify the calibration and ensure instruments are plugged into the correct channels.
2) The initial setup involves configuring date/time, display brightness, and preference settings like units of measurement and automatically updating the system.
3) Detailed instructions are provided for sample preparation, consolidation, performing tests, and calibrating the instrumentation if needed.
Prodigy Control System Operation ManualSTACY DAVIS
The document provides an overview of the Prodigy control system used on Lennox rooftop units. It describes the key components of the Prodigy system, including the controller, SmartWire system, and optional modules. It then outlines various functions of the Prodigy controller such as navigation, display features, alarms, service reports, profiles, self-test, replacing components, viewing runtimes, sensors, and changing setpoints.
When you’re looking to purchase replacement parts for your CNC, no one has more industry knowledge or better pricing than Independent Technology Service Inc.
At ITSCNC quality is key and that’s true with our replacement items for CNC machines.
ITSCNC is your one-stop shop for all fadal CNC parts. We offer you the best quality CNC parts with various features.
Refer to the User's Fadal Power On/Off Operator Manual. Do not install substitute parts or modify the CNC machine without consulting a safety engineer.
Download or check out all our Fadal CNC machines and parts manuals. We provide very simple and concise, step-by-step instructions on how to install and get your replacement Fadal parts in and running. With our documentation, we also include Preventative Maintenance tips to help avoid future failures. Simply email us at parts@itscnc.com or go through our website.
https://itscnc.com/parts-manuals
Mitsubishi graphic operation terminal got2000 series drive control interactiv...Dien Ha The
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.vn
Pcu230 pi fan_controlwithpf400drives_rev_aconfidencial
The document provides instructions for using a PowerFlex 400 drive to control a fan motor's speed using a PID loop to maintain a constant air pressure. Key steps include:
1. Configuring the drive for PID control with the setpoint coming from the PID regulator and feedback from an analog input monitoring air pressure.
2. Setting up DriveObserver software to monitor the PID setpoint, fan speed output, and air pressure feedback for tuning the PID gains.
3. Adjusting the proportional, integral, and differential gains while observing the system response to changes in airflow demand until the PID loop maintains steady control without overshoot or undershoot.
This document provides instructions for a hands-on lab using a PowerFlex 400 drive to control a pump motor with a PID loop. The drive will maintain a constant flow from the pump regardless of demand by using the built-in PID controller. Students will configure the PID settings, monitor the process using DriveObserver software, and tune the PID gains to minimize overshoot and undershoot in response to setpoint changes. The objectives are to familiarize students with process PID control of flow using variable frequency drives.
1. The document provides instructions for setting up and tuning a PowerFlex 40 drive to control a fan motor using PID loop control to maintain a constant pressure.
2. Key steps include connecting the fan and pressure sensor, enabling the PID controller with a setpoint, and tuning the proportional, integral and differential gains to minimize overshoot and undershoot in response to changes in damper position.
3. The document describes optimizing the PID loop response by adjusting the proportional gain, integral time, acceleration/deceleration parameters, and differential gain while monitoring the feedback and output frequency signals.
Pcu230 pi pump_controlwithpf400drives_rev_aconfidencial
This document provides instructions for using a PowerFlex 400 drive to control pump flow using a PID loop. The lab objectives are to configure process PID for pump flow control, view PID variables, and tune the PID regulator. Setup instructions describe connecting the drive, pump, and computer software. Programming instructions explain configuring reference and feedback signals and tuning the PID regulator by adjusting gain parameters to minimize overshoot and undershoot in response to changes in flow demand.
This document provides instructions for setting up and using a Direct/Residual Shear Apparatus machine. The summary includes:
1) The machine arrives ready for use with calibrated instrumentation already installed and assigned to inputs. Users should verify the calibration and ensure instruments are plugged into the correct channels.
2) The initial setup involves configuring date/time, display brightness, and preference settings like units of measurement and automatically updating the system.
3) Detailed instructions are provided for sample preparation, consolidation, performing tests, and calibrating the instrumentation if needed.
Prodigy Control System Operation ManualSTACY DAVIS
The document provides an overview of the Prodigy control system used on Lennox rooftop units. It describes the key components of the Prodigy system, including the controller, SmartWire system, and optional modules. It then outlines various functions of the Prodigy controller such as navigation, display features, alarms, service reports, profiles, self-test, replacing components, viewing runtimes, sensors, and changing setpoints.
When you’re looking to purchase replacement parts for your CNC, no one has more industry knowledge or better pricing than Independent Technology Service Inc.
At ITSCNC quality is key and that’s true with our replacement items for CNC machines.
ITSCNC is your one-stop shop for all fadal CNC parts. We offer you the best quality CNC parts with various features.
Refer to the User's Fadal Power On/Off Operator Manual. Do not install substitute parts or modify the CNC machine without consulting a safety engineer.
Download or check out all our Fadal CNC machines and parts manuals. We provide very simple and concise, step-by-step instructions on how to install and get your replacement Fadal parts in and running. With our documentation, we also include Preventative Maintenance tips to help avoid future failures. Simply email us at parts@itscnc.com or go through our website.
https://itscnc.com/parts-manuals
Mitsubishi graphic operation terminal got2000 series drive control interactiv...Dien Ha The
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.vn
The document provides information about steering system diagnosis and repair. It includes:
F
Turn the ignition switch OFF.
Disconnect combination meter harness connectors.
Disconnect power steering control unit harness connector.
Check the continuity between combination meter harness connector and power steering control unit harness connector.
STC
H
Combination meter
Power steering control unit
Connector
Terminal
Connector
Terminal
M107
5
M108
11
Continuity
Existed
I
Is the inspection result normal?
YES >> GO TO 3.
NO
>> Repair or replace error-detected parts.
J
3.
Design and tuning of PID override control system based on signal filteringMinh Chien Tran
This document describes a proposed override control system that uses two anti-reset windup controllers, a common actuator, and pre-filter and post-filter to limit an override variable without overshoot. The standard override control system uses a min/max selector that can cause overshoot. The proposed system instead uses a post-filter and limiter to define the desired limit and set-point for the override variable. Simulation results demonstrate that the proposed system can limit the override variable without overshoot, which is an improvement over the standard approach. An experiment on a laboratory thermal plant confirms the effectiveness of the proposed solution.
The document discusses PID control and tuning methods. It explains that most manufacturing plants use distributed control systems with PID algorithms for process control. The PID algorithm has been used for over 100 years and is considered the best controller, though it is linear which does not reflect the nonlinear nature of real-life processes. The document then provides an example of using the step change method to tune a temperature controller by adjusting the controller output and observing the process response. Based on the response, tuning parameters of gain, integral time and derivative time are estimated and entered into the controller to improve stability.
This document provides instruction on installing and using smart home software for Android devices. It allows users to control various smart home devices connected to a gateway, including lights, sockets, air conditioners, curtains, security sensors and cameras. The software offers functions like scene control, device control, setup options and data synchronization across multiple clients.
Daewoo doosan dx300 lc excavator service repair manual (serial number 5001 an...ufjjdjkkskemmd
The document provides instructions for troubleshooting and testing a hydraulic system, including adjusting the pump regulator and installing a flow meter. It recommends periodically contacting distributors for updated documentation and manuals. Illustrations are representations and may vary from actual equipment. The summary focuses on the key points of adjusting the pump regulator using a flow meter, balancing pump outputs, and installing a flow meter for testing.
The presentation will give you brief idea about the operation of hydro power plant which includes pre-check conditions, starting and stopping sequences, loading of unit, emergency stopping, parameter monitoring and control.
The MD 902 Explorer is powered by two Pratt & Whitney Canada Model 207E turboshaft engines, each producing 710 shaft horsepower. The engines are mounted at a 25 degree angle to improve flight dynamics. Engine air intake is provided by NACA air inlets that improve fuel efficiency. The engines are controlled by a full authority digital engine control (FADEC) system with a hydro-mechanical backup. In the event of an engine failure during training, the FADEC automatically reverts the operating engine to its maximum power setting.
This document describes the design of a PI controller to minimize speed error for a DC servo motor. It presents a mathematical model of the DC servo motor and designs a PI controller using Simulink. The PI controller gains are adjusted to minimize overshoot, rise time, settling time, and speed error when the reference input changes between 110V to 220V and 110V to 55V. Simulation results show the PI controller is effective at maintaining near zero speed error and improving transient response.
This document discusses instrument maintenance practices at National Fertilizers Limited, a chemical process industry. It outlines the importance of instrumentation in process industries and describes various types of control loops used. It then discusses different types of maintenance practices including day-to-day, preventative, shutdown, and breakdown maintenance. Finally, it outlines upgrades made to instrumentation systems, including replacing old pneumatic and single loop controllers with a distributed control system and programmable logic controllers to improve reliability, efficiency, and optimization.
The document discusses PID controllers, including:
1) PID controllers use proportional, integral and derivative modes to control systems. The proportional mode determines how much correction is made, the integral mode determines how long a correction is applied, and the derivative mode determines how fast a correction is made.
2) Ziegler-Nichols tuning rules provide methods to experimentally determine PID parameters (Kp, Ti, Td) when mathematical models are unknown, including open-loop and closed-loop methods using a plant's step response.
3) An electronic PID controller can be implemented as a circuit using resistors and capacitors to realize the proportional, integral and derivative terms.
This document provides an overview of knowledge management and PID tuning methods, including:
1) It describes different process characteristics and controller behaviors, and introduces common PID tuning methods like Ziegler-Nichols tuning.
2) It outlines the steps for tuning a PID controller, including understanding the process, selecting a control method, tuning approach, and initially and finely tuning parameters.
3) It details different tuning methods like open-loop, closed-loop, and trial and error, and provides equations and tables for initially setting PID parameters based on these methods.
The document describes a hands-on lab using a PowerFlex drive to control fan speed using a PI regulator to maintain constant air pressure. The drive is configured to use a constant setpoint as the reference and an analog input for feedback from a pressure transducer. Digital and analog I/O are configured and the PI regulator is tuned by adjusting proportional gain and integral time parameters to control fan speed in response to a simulated pressure demand change using a damper.
This document provides instructions for a lab demonstrating the energy savings from using a variable frequency drive (VFD) to control pump speed compared to throttling valve control. It includes an equipment list, instructions for configuring a PowerFlex 700 drive and connecting it to the pump demo, and steps for collecting power and current data at various flow rates using DriveObserver software to calculate the energy savings. Running the pump at lower speeds with the VFD reduces power consumption and wear compared to throttling the pump.
The document describes a PID control simulation program created to help understand PID controllers. It details the main window layout including the chart display panel, controller output panel, settings panel, and program modes panel. It then explains how to operate the simulator in both manual and programmed modes and provides an overview of PID controller concepts such as proportional, integral, and derivative control actions.
This document provides instructions for a lab using a PowerFlex 755 drive to demonstrate position camming (PCAM) functionality. The lab guides the user through resetting the drive to defaults, configuring PCAM parameters using DriveTools software, and running two PCAM configurations. The first runs the motor in a 1:1 ratio to the handwheel. The second uses multiple cam points to produce a "flying shear" profile where the motor reverses direction over the range of the handwheel. Scaling the PCAM profile depth is also demonstrated.
This document provides information about PID controllers and pulse width modulation including:
- PID controllers use a feedback loop to control processes and can operate in automatic or manual mode.
- Pulse width modulation uses variable pulse widths to control outputs like motor speed or valve position similarly to analog outputs.
- Commissioning involves using the auto-tuning function to calculate PID parameters from process responses to a step change, then uploading the parameters for automatic control.
The document provides information about PID controllers and pulse width modulation including:
1) It discusses adding a PID controller instruction block and configuring its parameters such as input scaling, output limits, and manual PID parameters.
2) It describes adding a cyclic interrupt organization block to execute the PID instruction at a specified cycle time.
3) It explains defining variable symbols to provide symbolic names for addresses used in the PID controller program for clarity.
This document provides instructions for adjusting fuel injection pumps. It describes:
1. The required test equipment and conditions for adjustment, including a pump test bench, controller, software, and wiring.
2. The controller unit controls, including switches to select the ECU and turn the FCV valve on/off.
3. An overview of the pump adjustment tool software interface, which guides the user through inputting part numbers, adjustment steps, and collecting measurement values.
Ls catalog thiet bi tu dong i e5_e_1105_dienhathe.vnDien Ha The
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.org
Ls catalog thiet bi tu dong i e5_e_1105Dien Ha The
Catalog LS, Catalog,
Catalog Thiết Bị Điện LS, Catalog Thiết Bị Điện,
Catalog Biến Tần LS, Catalog Biến Tần,
Catalog Inverter LS, Catalog Inveter,
http://dienhathe.com,
Chi tiết các sản phẩm khác của LS tại https://dienhathe.com
Xem thêm các Catalog khác của LS tại https://dienhathe.info
Để nhận báo giá sản phẩm LS vui lòng gọi: 0907.764.966
The document provides information about steering system diagnosis and repair. It includes:
F
Turn the ignition switch OFF.
Disconnect combination meter harness connectors.
Disconnect power steering control unit harness connector.
Check the continuity between combination meter harness connector and power steering control unit harness connector.
STC
H
Combination meter
Power steering control unit
Connector
Terminal
Connector
Terminal
M107
5
M108
11
Continuity
Existed
I
Is the inspection result normal?
YES >> GO TO 3.
NO
>> Repair or replace error-detected parts.
J
3.
Design and tuning of PID override control system based on signal filteringMinh Chien Tran
This document describes a proposed override control system that uses two anti-reset windup controllers, a common actuator, and pre-filter and post-filter to limit an override variable without overshoot. The standard override control system uses a min/max selector that can cause overshoot. The proposed system instead uses a post-filter and limiter to define the desired limit and set-point for the override variable. Simulation results demonstrate that the proposed system can limit the override variable without overshoot, which is an improvement over the standard approach. An experiment on a laboratory thermal plant confirms the effectiveness of the proposed solution.
The document discusses PID control and tuning methods. It explains that most manufacturing plants use distributed control systems with PID algorithms for process control. The PID algorithm has been used for over 100 years and is considered the best controller, though it is linear which does not reflect the nonlinear nature of real-life processes. The document then provides an example of using the step change method to tune a temperature controller by adjusting the controller output and observing the process response. Based on the response, tuning parameters of gain, integral time and derivative time are estimated and entered into the controller to improve stability.
This document provides instruction on installing and using smart home software for Android devices. It allows users to control various smart home devices connected to a gateway, including lights, sockets, air conditioners, curtains, security sensors and cameras. The software offers functions like scene control, device control, setup options and data synchronization across multiple clients.
Daewoo doosan dx300 lc excavator service repair manual (serial number 5001 an...ufjjdjkkskemmd
The document provides instructions for troubleshooting and testing a hydraulic system, including adjusting the pump regulator and installing a flow meter. It recommends periodically contacting distributors for updated documentation and manuals. Illustrations are representations and may vary from actual equipment. The summary focuses on the key points of adjusting the pump regulator using a flow meter, balancing pump outputs, and installing a flow meter for testing.
The presentation will give you brief idea about the operation of hydro power plant which includes pre-check conditions, starting and stopping sequences, loading of unit, emergency stopping, parameter monitoring and control.
The MD 902 Explorer is powered by two Pratt & Whitney Canada Model 207E turboshaft engines, each producing 710 shaft horsepower. The engines are mounted at a 25 degree angle to improve flight dynamics. Engine air intake is provided by NACA air inlets that improve fuel efficiency. The engines are controlled by a full authority digital engine control (FADEC) system with a hydro-mechanical backup. In the event of an engine failure during training, the FADEC automatically reverts the operating engine to its maximum power setting.
This document describes the design of a PI controller to minimize speed error for a DC servo motor. It presents a mathematical model of the DC servo motor and designs a PI controller using Simulink. The PI controller gains are adjusted to minimize overshoot, rise time, settling time, and speed error when the reference input changes between 110V to 220V and 110V to 55V. Simulation results show the PI controller is effective at maintaining near zero speed error and improving transient response.
This document discusses instrument maintenance practices at National Fertilizers Limited, a chemical process industry. It outlines the importance of instrumentation in process industries and describes various types of control loops used. It then discusses different types of maintenance practices including day-to-day, preventative, shutdown, and breakdown maintenance. Finally, it outlines upgrades made to instrumentation systems, including replacing old pneumatic and single loop controllers with a distributed control system and programmable logic controllers to improve reliability, efficiency, and optimization.
The document discusses PID controllers, including:
1) PID controllers use proportional, integral and derivative modes to control systems. The proportional mode determines how much correction is made, the integral mode determines how long a correction is applied, and the derivative mode determines how fast a correction is made.
2) Ziegler-Nichols tuning rules provide methods to experimentally determine PID parameters (Kp, Ti, Td) when mathematical models are unknown, including open-loop and closed-loop methods using a plant's step response.
3) An electronic PID controller can be implemented as a circuit using resistors and capacitors to realize the proportional, integral and derivative terms.
This document provides an overview of knowledge management and PID tuning methods, including:
1) It describes different process characteristics and controller behaviors, and introduces common PID tuning methods like Ziegler-Nichols tuning.
2) It outlines the steps for tuning a PID controller, including understanding the process, selecting a control method, tuning approach, and initially and finely tuning parameters.
3) It details different tuning methods like open-loop, closed-loop, and trial and error, and provides equations and tables for initially setting PID parameters based on these methods.
The document describes a hands-on lab using a PowerFlex drive to control fan speed using a PI regulator to maintain constant air pressure. The drive is configured to use a constant setpoint as the reference and an analog input for feedback from a pressure transducer. Digital and analog I/O are configured and the PI regulator is tuned by adjusting proportional gain and integral time parameters to control fan speed in response to a simulated pressure demand change using a damper.
This document provides instructions for a lab demonstrating the energy savings from using a variable frequency drive (VFD) to control pump speed compared to throttling valve control. It includes an equipment list, instructions for configuring a PowerFlex 700 drive and connecting it to the pump demo, and steps for collecting power and current data at various flow rates using DriveObserver software to calculate the energy savings. Running the pump at lower speeds with the VFD reduces power consumption and wear compared to throttling the pump.
The document describes a PID control simulation program created to help understand PID controllers. It details the main window layout including the chart display panel, controller output panel, settings panel, and program modes panel. It then explains how to operate the simulator in both manual and programmed modes and provides an overview of PID controller concepts such as proportional, integral, and derivative control actions.
This document provides instructions for a lab using a PowerFlex 755 drive to demonstrate position camming (PCAM) functionality. The lab guides the user through resetting the drive to defaults, configuring PCAM parameters using DriveTools software, and running two PCAM configurations. The first runs the motor in a 1:1 ratio to the handwheel. The second uses multiple cam points to produce a "flying shear" profile where the motor reverses direction over the range of the handwheel. Scaling the PCAM profile depth is also demonstrated.
This document provides information about PID controllers and pulse width modulation including:
- PID controllers use a feedback loop to control processes and can operate in automatic or manual mode.
- Pulse width modulation uses variable pulse widths to control outputs like motor speed or valve position similarly to analog outputs.
- Commissioning involves using the auto-tuning function to calculate PID parameters from process responses to a step change, then uploading the parameters for automatic control.
The document provides information about PID controllers and pulse width modulation including:
1) It discusses adding a PID controller instruction block and configuring its parameters such as input scaling, output limits, and manual PID parameters.
2) It describes adding a cyclic interrupt organization block to execute the PID instruction at a specified cycle time.
3) It explains defining variable symbols to provide symbolic names for addresses used in the PID controller program for clarity.
This document provides instructions for adjusting fuel injection pumps. It describes:
1. The required test equipment and conditions for adjustment, including a pump test bench, controller, software, and wiring.
2. The controller unit controls, including switches to select the ECU and turn the FCV valve on/off.
3. An overview of the pump adjustment tool software interface, which guides the user through inputting part numbers, adjustment steps, and collecting measurement values.
Ls catalog thiet bi tu dong i e5_e_1105_dienhathe.vnDien Ha The
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.org
Ls catalog thiet bi tu dong i e5_e_1105Dien Ha The
Catalog LS, Catalog,
Catalog Thiết Bị Điện LS, Catalog Thiết Bị Điện,
Catalog Biến Tần LS, Catalog Biến Tần,
Catalog Inverter LS, Catalog Inveter,
http://dienhathe.com,
Chi tiết các sản phẩm khác của LS tại https://dienhathe.com
Xem thêm các Catalog khác của LS tại https://dienhathe.info
Để nhận báo giá sản phẩm LS vui lòng gọi: 0907.764.966
This document provides instructions for a lab demonstrating the energy savings of a variable speed drive for pump control compared to a simple motor starter. It includes an equipment list, lab objectives, document conventions, instructions for setting up the demo, configuring software, resetting and configuring the drive, monitoring performance, and testing features like power loss ride through and flying start.
This document provides an overview of a lab exploring the new PowerFlex 750 Series drives. The lab covers basic exploration of the drive interface, resetting defaults, connecting via Ethernet, installing optional cards, and interaction of parameters between the main control board and optional cards. Sections are included on fault and alarm configuration, real-time clock, predictive maintenance, and auto/manual control.
This document provides an overview of PID control basics and tuning. It begins with explaining why understanding PID is important and then covers common control techniques like manual, on/off, and closed loop control. It defines PID terms like proportional, integral, and derivative control and how they work together. The document discusses process dynamics around dead time and lag. It then provides guidance on manually tuning PID loops and using auto-tune functions. It concludes by listing some Yokogawa products that incorporate PID control capabilities.
PID is short for "proportional plus integral and derivative", three algorithm components used by this type of controller in managing a control loop. Process loop controllers use one, two or all three of these to optimally control the process system. PID control is used in a wide variety of applications in industrial control and process system management.
SPP-01 Super Parameter Programmer User Manual
Available at http://shop.ultisolar.com Paypal, Amazing Shipping freight to 100 countries and more. -Ultisolar New Energy Co., Ltd SWH Controllers||SWH Pump Stations||MPPT/PWM Solar Controllers||Flow Meter||Hall Flow Sensors||Heat Exchangers
Bien tan ls gioi thieu bien tan i e5 series (new)-1Dien Ha The
Catalog LS, Catalog,
Catalog Thiết Bị Điện LS, Catalog Thiết Bị Điện,
Catalog Biến Tần LS, Catalog Biến Tần,
Catalog Inverter LS, Catalog Inveter,
http://dienhathe.com,
Chi tiết các sản phẩm khác của LS tại https://dienhathe.com
Xem thêm các Catalog khác của LS tại https://dienhathe.info
Để nhận báo giá sản phẩm LS vui lòng gọi: 0907.764.966
Bien tan ls gioi thieu bien tan i e5 series (new)-1-dienhathe.vnDien Ha The
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.org
Bien tan ls gioi thieu bien tan i e5 series (new)-1-dienhathe.vnDien Ha The
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.org
Premier integration with logix, pf drives and ft view (pf755)confidencial
This document provides instructions for a lab that demonstrates integrating a PowerFlex 755 drive with a ControlLogix controller using RSLogix 5000 software. The lab includes steps for connecting hardware, creating an RSLogix 5000 project with an integrated drive profile for the PowerFlex 755, configuring network I/O between the devices, and using FactoryTalk View ME to monitor and control the drive. Optional sections provide additional exercises for explicit messaging, viewing drive web pages, a conveyor application example, and using a non-AB drive.
The document is an installer/user guide for the Geist Watchdog 100 environmental monitoring device. It provides instructions on installation, setup, and use of the device. Key details include:
- The device monitors temperature, humidity, and other environmental sensors to provide trend analysis data.
- It has an onboard temperature/humidity sensor and ports to connect up to four external analog sensors.
- Setup instructions cover mounting, power/network connection, and accessing the web interface using the default IP address.
- The web interface home page displays readings from onboard and connected sensors.
This document provides guidance on modeling LG Multi V air source and water source variable refrigerant flow (VRF) systems using the Carrier Hourly Analysis Program (HAP) building energy modeling software. It describes how to simulate VRF systems using either the equipment wizard interface or detailed interface. When using the detailed interface, it explains how to define the outdoor unit, indoor units, air systems, plants, and enter performance data for the VRF equipment. The document also provides an overview of modeling water source VRF systems and references additional resources.
Configure the high and low limits and alarms
9. Configure in chart P113:
• PV_In: Interconnection to Address: “LT114”
• SP_In: Interconnection to Address: “SP114”
• AutAct: Interconnection to Address: “P113_AutAct”
• Run: Interconnection to Address: “P113_Run”
• Stop: Interconnection to Address: “P113_Stop”
10. Configure in chart V112:
• PV_In: Interconnection to Address: “LT114”
• SP_In: Interconnection to Address: “SP114”
• AutAct: Interconnection to Address: “V112_Aut
The document discusses syntax rules for naming conventions in PCS 7 projects, including:
- Special characters that should not be used such as ?, ", /, etc. in different areas like ES, OS, etc.
- Maximum length of names for objects in CFCs, SFCs, blocks, and other project components which generally range between 8-24 characters.
- Specific rules for different components like variables, charts, libraries, projects, etc. regarding allowed characters and maximum lengths.
17 demonstration server client system-v1.00_enconfidencial
This document describes the configuration of a PCS 7 server-client system. It discusses the system architecture with OS servers connected to automation systems and OS clients accessing the servers' data. The main configuration steps are outlined, including setting up the multiproject, configuring functional information like the plant hierarchy and pictures, distributing configuration via loading servers and clients, and defining information flow between the engineering system, servers, clients, and automation systems.
15 final steps of configuration v1.00_enconfidencial
1. The document discusses the final steps of configuring a PCS 7 system, including AS-AS communication, configuration in run mode, simulation, and forcing block I/Os.
2. It describes how to automatically or manually configure an AS-AS connection in NetPro to enable communication between different automation systems.
3. It also covers preparing the system for modifications during operation, simulating process signals on the operator station and engineering station, and forcing values to test block behavior.
The document discusses mass data engineering in PCS 7, including process tag types, import/export assistants, and chart reference data. It provides an example of using a process tag type and import file to generate level measurement charts for 4 reactors based on an existing chart, modifying chart names, signals, scaling, and comments. The import file is created from a template to define the I/O points and data for the new process tags. Running the import will generate new charts according to the file. Chart reference data allows navigating between elements in CFC and SFC charts for troubleshooting.
13 locking functions and operating modes v1.00_enconfidencial
This document provides an overview of locking functions and operating modes in PCS 7 System course. It describes interlock functions that can avoid undesired control functions by locking valves and motors. Interlock blocks make it possible to create static binary logic using AND and OR operations. The status of inputs can be inverted or bypassed. Operating modes like local, remote, manual and automatic are discussed along with how they affect control functions. The document also covers resetting interlocks, forcing operating states, and priorities between operating modes and control functions.
This document provides an overview of archiving in the PCS 7 system. It discusses how to configure alarm logging to archive messages and alarms. Process values can be archived by configuring tag logging. There are two archive types for tags - fast and slow logging. Trends and alarm lists can be displayed in WinCC by configuring the appropriate controls. The document also covers preparing the OS for archiving, defining the archive size and location, and transferring alarm and tag configuration from SIMATIC Manager to the Operator Station.
This document section discusses customizing the OS in a PCS 7 system. It covers topics like user administration and authorization concepts, picture navigation settings, the OS project editor, time synchronization configuration, alarm handling, status displays, and making WinCC object properties dynamic. The document provides information on configuring operator rights, presentation of events and alarms, status displays connected to tags, and making object properties dynamic based on tag values. It aims to teach the user how to customize various OS aspects in PCS 7 including user authorization, time settings, alarm management and dynamic displays.
10 basics automatic mode control v1.00_enconfidencial
The document provides information about sequential function charts (SFC) in SIMATIC PCS 7, including:
1) SFCs are used for sequential control and allow advancing between states depending on conditions. They control functions like CFC charts via mode and state changes.
2) An SFC chart can include a maximum of 8 sequencers to represent different states of a sequential control system. Each sequencer can have 2-255 steps.
3) When a new sequencer is created in an SFC, it is inserted with an initial step, transition, and final step representing its initial state.
09 basics operating and monitoring v1.00_enconfidencial
The document discusses the basics of operating and monitoring a PCS 7 system. It describes the general functions of the operator station (OS) and how it can be configured as a single station or multiple station system. It also covers plant hierarchy settings, the OS-AS connection, compiling projects, layouts, block icons and faceplates. The key points are:
- The OS is based on WinCC and used for process visualization, alarm logging, tag logging, and more.
- A system can be a single OS or multiple OSs connected to one or more automation stations. Redundant servers provide high availability.
- Plant hierarchy settings determine how data is structured in pictures and tag names on the
This document provides an overview of basics control functions in PCS 7, including:
- An introduction to the Advanced Process Library (APL) blocks, which use structures to pass both process values and signal status through a single interconnection.
- Details on how signal status is implemented and displayed as symbols or hexadecimal values in the APL to indicate quality.
- A comparison of how standard and APL blocks handle passing signal status.
- Information on group status formation and priority in technological blocks.
The document discusses connecting PCS 7 to a process. It covers using component and plant views in a multiproject system, basics of charts and blocks including libraries and properties. It also discusses device drivers, process signals, and testing I/O signals by configuring charts containing drivers for all signals of a training process simulation. The goal is for trainees to be able to configure these connections and test the process simulation as preparation for automation function development.
06 station and network configuration v1.00_enconfidencial
The document discusses station and network configuration in PCS 7. It describes:
1) How station configuration differs between the "classic" STEP 7 method and PCS 7's approach, with PCS 7 involving the engineering system in the project and network of all stations.
2) The key components and principles of station configuration in PCS 7, including configuring stations as 1:1 images of real hardware, using a "virtual rack" for PC stations, and configuring network connections between components.
3) The process of configuring PC stations in both the project and on the local PC, and how the "PLC Configure" function streamlines this configuration.
In 3 sentences or less, this
The document discusses setting up a SIMATIC PCS 7 project. It describes how a multiproject binds together multiple projects and libraries. A multiproject must contain at least one project and the master data library. The master data library stores standardized blocks, SFCs, and declarations that can be synchronized across the multiproject. It also supports bulk engineering functions. The document provides an overview of the steps to configure automation and operator systems and introduces the main SIMATIC PCS 7 engineering tools.
03 requirements and functional process description v1.00_enconfidencial
The document describes the requirements and functional process for a training system to control a food processing plant. It includes:
1) An overview of the plant process which involves dosing, mixing, and heating components in reactors and storing the finished product in buffer tanks.
2) Descriptions of the key components in the process including material tanks, dose tanks, reactors, and buffer tanks.
3) Details on connecting the training system to a signal box for input/output of digital and analog signals to represent process variables.
4) Diagrams of the digital and analog signals including input and output modules to interface between the signal box and programmable logic controller.
02 pcs 7 documentation and support v1.00 enconfidencial
This document discusses the various documentation and online support resources available for the SIMATIC PCS 7 process control system. It describes the manuals delivered with PCS 7 installation, additional readme files, the online help system, and a template for a plant-specific operator manual. It also outlines sources of additional information like the PCS 7 Compendium, product catalogs, and the Industry Online Support portal. This portal provides product support, tools, demonstrations, services, and other resources to users of PCS 7.
This document provides an overview of a PCS 7 system training course, including:
1) The course will introduce participants to the general workflow of a PCS 7 project from requirements to maintenance using a simulated automation of a 4 reactor plant.
2) The training will utilize one ES/OS, one AS with distributed I/O, and Industrial Ethernet as the system bus to simulate the automation based on available equipment.
3) Participants will work through tasks at different levels using the main PCS 7 engineering tools to create their own training project, with the process behavior simulated on the AS CPU.
This document is a course outline for a SIMATIC PCS 7 System Course provided by SITRAIN Training for Industry. The course covers topics such as PCS 7 documentation and support, system design and configuration, basic control and monitoring functions, customizing the operating system, archiving, locking functions, mass data engineering, and exercises using a demonstration server-client system. The course runs from a start date to an end date and is held at a specified training site, with a designated trainer. The document is intended for training purposes only and Siemens assumes no responsibility for its contents.
Fluxograma processo acucar_alcool_etanol_verdeconfidencial
Este documento apresenta um fluxograma detalhado do processo de produção de açúcar e álcool a partir da cana-de-açúcar. O processo inclui as seções de preparação da cana, extração do caldo, fermentação, filtração, evaporação, cristalização, secagem e envase do açúcar, além da destilação para produção de álcool. O fluxograma também mostra a geração de energia a vapor e elétrica a partir dos resíduos do processo.
O documento descreve o Totally Integrated Automation Portal (TIA Portal) da Siemens, uma plataforma de engenharia integrada que combina ferramentas como SIMATIC STEP 7 e SIMATIC WinCC. O TIA Portal fornece um ambiente de desenvolvimento centralizado para projetos de automação industrial, permitindo programação, configuração, comunicação e diagnóstico através de uma única interface de usuário.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
Pf400 process pid_for_fans_lab
1. PowerFlex™ 400 Process PID for Fans
Equipment List
PowerFlex 400 Demo
With Red Fan Demo
Windows 2000 PC with DriveExecutive™
and DriveObserver™ software
Background
The PowerFlex 400 drive will be used to operate the fan motor and control air-flow with the built-in
PID loop. Our application scenario is an intake fan that must maintain a constant pressure regardless
of the demand. The damper in the plenum will be used to simulate different demand settings.
Lab Objectives
This lab is designed to familiarize the student with process PI. At the conclusion of this lab, the
student will be able to:
Configure process PID for fan control
Verify drive setup
Configure DriveObserver to monitor data
View PID variables
Tune the PID regulator
Conventions Used in This Lab
ATTENTION: Identifies information about practices or circumstances that can lead to
personal injury or death, property damage or economic loss. Attention statements help you
identify a hazard, avoid a hazard, and recognize the consequences.
TIP: Identifies information that is helpful, but not necessary, in completing a task.
FYI: Provides additional information regarding the lab equipment, but is not needed to
complete the lab.
Drive Demo Setup
1. Position all switches to the OFF position. (Left for IN1, IN2, RUN FWD, RUN REV)
Attention: High Voltage Shock Hazard Exists. Do Not Remove Cover Unless ALL
Power is Removed. Verify this by checking if the Emergency Stop pushbutton is pushed
in and is not lit. The front cover must be in place prior to applying power to the
PowerFlex 400 demo. During this lab, do not remove the cover.
2. • 1. Verify that the PC is connected to the PowerFlex 400 drive as follows:
Connect the PC to the PowerFlex drive as follows:
Connect 9 Pin D-shell connector to Com1 of the computer.
Connect cable to the 22-SCM-232 module.
Connect RJ45 Cable to the drive and the 22-SCM-232 module
• 2. Verify that the fan is connected to the PowerFlex 400 drive as follows:
Connect motor cable of the fan to the external motor connector on the drive
2 pf400processpidforfanslab-140914194054-phpapp02
demo
Connect the fan I/O connector to the external I/O connector on the drive
demo
Connect the fan to 120 Vac (for the meter supply)
FYI: The “Aux” must have the connector with the chain, plugged in.
• 3. Pull the Power Switch (Red mushroom button) to power the demo.
(NOTE: If your demo does not power up, please ask an instructor for help).
Set the Drive to Defaults
• 1. Set parameter P041 [Reset To Defaults] to 1 “Factory Rset” to reset all
parameter values to factory default settings.
• 2. Press “Stop” to clear the active fault (F048).
Programming the Process PID Design
Connecting to the Drive Using DriveExecutive
• 1. Double-click the DriveExecutive icon on the Windows desktop (or in the
Windows Start menu select Programs > DriveTools 2000 > DriveExecutive)
to start the software. (If RSLinx is not configured, refer to last page for setup
instructions)
• 2. If a Danger dialog appears, read it and click OK.
• 3. In the menus select Drive > Connect to Drive…
• 4. When the Connect to Drive dialog opens, navigate the tree to the serial driver
(in this case, “Unrecognized Device”).
• 5. Select the drive device (Unrecognized Device) and click OK. The drive window
opens. At this time, DriveExecutive may create a Device Database File.
3. 3 pf400processpidforfanslab-140914194054-phpapp02
PID Regulator
Process Control uses the output of PID regulator as the speed reference. No master
speed reference exists and the PID Output directly controls the drive output. This
configuration does not require a master reference, only a desired setpoint, such as a
desired pressure or flow rate. The PID loop compares the setpoint to the process
feedback. The PID loop controls the drive output to maintain the process steady state
to match the setpoint.
Our application will use the Process Control configuration to control pressure in the fan
plenum.
Configuring Reference and Feedback Signals
• 1. Set parameter A152 [PID Ref Sel] to 1 “PID Setpoint” to enable the setpoint.
• 2. Set parameter A153 [PID Feedback Sel] to 1 “Analog Input 2”
• 3. Set parameter T073 [Analog In 2 Sel] to 1 “Current Mode 4-20 mA”
• 4. Set A12 DIP Switch to 20 mA
• 5. Set parameter A157 [PID Setpoint] to a value of 25% (the desired Setpoint).
TIP: The parameter setting changes can be made on-line from the “Linear List”
window that is open in DriveExecutive or using the integral keypad on the drive.
Drive Executive will not show the letter before the parameter number.
Defining Control of the PID Regulator
The PID regulator was enabled when you set parameter A152 [PID Ref Sel] to 1 “PID
Setpoint” and parameter A157 [PID Setpoint] to 25.0%
Setting Limits for the PI Regulator
• 1. Set parameter P035 [Maximum Frequency] to a value of 100 Hz. This will allow
the PI Regulator to control the airflow even when the damper is completely
closed. If the frequency is limited to 60Hz, the airflow would not reach the
desired level when the damper is closed.
4. 4 pf400processpidforfanslab-140914194054-phpapp02
Verifying Drive Setup
Checking Switch Settings and Verifying Reference and Feedback Signals
• 1. Start the drive by switching the RUN FWD switch on the demo to ON. Verify
that P036 is set to 2 “2-Wire”; P037 is set to 4 “Ramp to Stop”; and A166 is set
to 0 “Reverse Enable”
• 2. Run the drive in Forward. The fan in the bottom of the demo should be turning
counter-clockwise when looking at it top perspective. (Run the drive in Reverse
if the fan is turning in the wrong direction.)
• 3. View the drive in DriveExecutive.
• 4. Locate parameter d306 [Analog In 2]
• 5. View parameter d306[Analog In 2] and verify that there is approximately 25%
flow rate.
• 6. Stop the drive.
Viewing the PID Variables
Starting DriveObserver
To perform this portion of the lab, you will be using DriveObserver software.
• 1. Double-click the DriveObserver icon on the Windows desktop (or in the
Windows Start menu select Programs > DriveTools 2000 > DriveObserver)
to start the software.
• 2. In the menus, select File > New. The sampling dialogue will open.
• 3. Select a sampling period of 300 milliseconds, and then click OK.
Adding Traces
• 1. If the Add Trace dialog is not already open, select Chart >Add traces…
• 2. DriveObserver will display the node that is currently being used by
DriveExecutive. (Otherwise, you will need to use the Add Node button to select
a drive.)
• 3. From the drive Linear List, select the following parameters from the linear list of
the node by clicking the checkbox in front of each desired parameter: d001
[Output Freq] and d306[Analog In 2], A157 [PID Setpoint].
• 4. Click OK.
Recording Data
• 1. Start the drive by switching the RUN FWD (or RUN REV) switch on the demo to
the ON position.
• 2. In the DriveObserver toolbar, click the Record button . DriveObserver now
displays new data.
• 3. If you want to stop recording data, click the Stop button .
5. TIP: Double clicking the parameter in the table beneath the chart will open a dialog so that
you can change the color, minimum & maximum values, line format, etc. For this exercise,
you may wish to set the Analog in 4-20ma and the PID Setpoint to a scale of 0-100%.This
will allow you to verify that they are equal
5 pf400processpidforfanslab-140914194054-phpapp02
Tuning the PID Regulator
The PID regulator in the drive must be adjusted for the specific fan that you are
connected to. These adjustments need to be made to optimize how the drive reacts to
changes in the connected load.
Understanding Gain Settings
This section will help you get a feeling for how to adjust the drive gain values. Use
DriveExecutive to make changes while you watch the [Output Freq] and [Analog In 4-
20mA] signal in DriveObserver. Do not forget to change the damper position after
each parameter setting change.
The Proportional component affects how the regulator reacts to the magnitude of the
error. To increase the responsiveness program parameter A154 [PID Proportional
Gain] to a larger value. The default value is 0.01.
The Integral component affects how the regulator reacts to error over time. To increase
the integration rate, program parameter A155 [PID Integral Time] to a smaller value.
The default value is 2.0.
The Differential component affects the rate of change of the PID output. To increase
the responsiveness, program parameter A156[PID Differential Rate] to a larger value.
The default value is 0.00.
Using DriveObserver, you should be able to adjust the gain settings in the PowerFlex
400 drive until you have a graph that looks like the one below. A properly tuned PI
regulator will minimize overshoot (and ringing) while avoiding excessive undershoot.
When properly tuned, your chart should look something like this when the damper is
changed from fully-open to fully-closed.
1. Change the accel and decel to 0.1 sec. This will ensure that they do not affect the PID
loop.
2. Parameter A154 [PID Prop Gain] is set to a default of 0.01. This equates to 1% output
change for 100% feed back change. Adjust A154 [PID Prop Gain] to a larger value (like
0.5) and verify the operation of the PID regulator by varying the position of the damper
from fully open to fully closed on the fan. Continue to adjust this value until an optimum
value is reached. (If the system becomes unstable, back off the value). Record your
value for PID Prop Gain ______________________________.
3. Parameter A155 [PID Integral Time] is set to a default of 2.0 seconds. This parameter is
scaled so that when it is set to 2.0, the process will integrate from 0-100% of [Maximum
Frequency] in 2.0 seconds when the process error is 100%. Adjust A155 [PID Integral
Time] to a lower value (like 1.0) and verify the operation of the PID regulator by varying
the position of the damper from fully-open to fully-closed on the fan. Continue to adjust
this value until an optimum value is reached. (If the system becomes unstable, the value
is too small). Record your value for PID Integral Time _____________________.
4. Parameter A156 [PID Differential Rate] is set to 0 default. This parameter is scaled so
that when it is set to 1.0, the process response is 0.1% of [Maximum Frequency] when
6. the process error is changing at 1% / second. Adjust this and observe the effect on the
process response when making changes to the damper from fully-open to fully-closed
on the fan. Record your value for PID Differential Rate ____________________.
5. Parameter A158 [PID Deadband]. This parameter setting allows a deadband that is +/-
of the Setpoint, that is, if A138 [PID Deadband] is set to 5.0 and Setpoint is set to 25.0.
This allows the feedback to change from 20 to 30 without the PID regulator acting on
the error. Set to a value (less than 5) and observe affect.
6. Parameter A159 [PID Preload]. This parameter will be pre-loaded into the integral
component of the PID at any start or enable. Stop the drive, wait a couple of seconds,
then start the drive. Note the time it takes to null the error.
7. Note the steady state output frequency of the drive. Stop the drive. Set A159 to the
output frequency observed before stopping the drive. Start the drive. Note how preload
affects the reaction time at start. Adjust the value of preload to an optimum setting.
8. Change the damper position. Does the preload value work for this new plenum system?
9. Select a value for PID Preload that works under various damper positions and record
your value _________________________.
6 pf400processpidforfanslab-140914194054-phpapp02
70
60
50
40
30
20
10
0
Set Up an RSLinx Serial Driver
• 1. Connect the PC to the PowerFlex drive as follows:
60
50
40
30
20
10
0
Commanded Frequency
Feedback
Start
Stop
7. • 2. Double-click on RSLinx icon on your desktop (or in the Windows Start menu select
Programs > Rockwell Software > RSLinx > RSLinx) to start RSLinx. We need to start
RSLinx the first time so that we can configure a serial driver.
• 3. In the menus, select Communications > Configure Drivers. The Configure Drivers
7 pf400processpidforfanslab-140914194054-phpapp02
dialog box will open.
• 4. Look in the list of Configured Drivers. If you see a driver whose name begins with
“AB_DF1”, select it and click Delete.
• 5. In the Available Drivers selection box, select “RS-232 DF1 devices” and click Add New.
• 6. When prompted for a name, click OK. The Configure RS-232 DF1 Devices dialog box
will open. Make sure that:
The “Comm Port” is set to the communications port on your PC (COM1 for this
lab).
The “Device” is set to 1770-KF2/1785-KE/SCANport.
• 7. The baud rate is set to the baud rate of your adapter (38400 for this lab).
• 8. Click OK to close the dialog box.
• 9. Verify that the driver that you just configured is listed in the Configured Drivers list
with a status of “Running”.
TIP: If the Status is “Conflict”, other software may be using the serial comm port or you
may have two RSLinx serial drivers programmed for the same serial port:
Delete duplicate drivers
If another serial software package, such as DriveExplorer, is running, close it. Then
stop and re-start the RSLinx serial driver.
• 10. Click Close to close the Configure Drivers dialog.
• 11. In the menus, select Communications > RSWho…. The RSWho dialog will open.
• 12. You should see both a computer (Workstation) and the connected drive device
(AB_DF1-1, Data Highway Plus). ** NOTE: At this time, the drive device will be
depicted by a question mark icon labeled “Unrecognized Device”. The serial driver
will work. **. If this is not the case, verify that you have properly connected the PC to
the drive using the 22-SCM-232 adapter and that power to the drive is on. If you check
all these things and the connected drive device still does not appear, verify your device
driver settings and try other baud rates (9600, 19200 38400) and computer comm ports
(COM1, COM2).
• 13. Close RSLinx.