1. how unlocking Latest RS-Introductions
information from
a fan is a Latest introductions to the RS-offering include cost/perfor-
blast!
mance optimizations, range extensions, solutions for railway
applications and other innovations to meet state of the art
customer requirements.
A snapshot of the continuous TRACOPOWER
DC/DC converter innovation program:
Communication may sound like an odd way to TRA-1 1 W SIP package, semi-regulated,
1500 VDC I/O-isolation
address growing energy concerns and rising prices
TRV-1 1 W SIP package, semi-regulated,
but communicating with fans can do just that.
3000 VDC I/O-isolation
TMR-3E 3 W SIP package, 2:1 input, cost optimized de-
ebm-papst manufactures
around one million
fans and motors per week and increasingly these
multiple devices to be connected on one single
cable that can be up to 1200 metres long. The
hardware needed for RS-485 is also very low cost
sign,
remote On/Off
are electronically commutated or EC fans. These using simple screw terminals in most cases and THL-3WI 3 W DIP package, 4:1 input, remote On/Off,
fans offer much higher efficiency than AC fans and typically just one driver IC connected directly to
their onboard electronics offers communication to a microprocessor. RS-485 is found as a common input filter to meet EN 55022 class A
a level that was previously impossible. However, interface on PLC controllers and on industrial PCs THL-3WISM 3 W SMD package, 4:1 input, remote On/Off,
many end-users still consider fans as dumb, making it quick and easy to connect them to fans input filter to meet EN 55022 class A,
unintelligent devices and are missing out on the and other devices. Modbus is also a very common
vital information which is available to keep protocol used by leading PLC manufacturers and
cost optimized design
a system running. Whether a cooling building management systems (BMS). TSR-3 3 A Ultra compact non isolated switching regulators,
system is looking after a data centre or highest efficiency, remote On/Off
keeping perishable goods in perfect The Modbus interface on larger ebm-papst fans
condition, downtime is costly and covers speed setting, speed monitoring and
THL-6WISM 6 W SMD package, 4:1 input,
time consuming. condition monitoring information such as hours run input filter to meet EN 55022 class A
and fault status with appropriate alarm outputs. TEN-8WI 8 W DIP 24 package, extended product range
All fans move air and air contains This information can be collected and analysed to with
contaminants such as dust and allow maintenance personnel to detect potential
other airborne particles which can problems and implement preventive maintenance. 43 - 160 VDC input range and railway approval
clog filters and leave deposits Communication with fans can bring many benefits, THL-10WI 10 W 1“ x 1“ package, 4:1 input, high perfor-
that will reduce a system’s as can communication with any device. However mance,
efficiency. These issues can be putting this information to good use is key for
managed by using speed control to business and engineers alike if they are to have an cost optimized design, standard pinout
optimise air flow rate to the minimum advantage in today’s markets. THL-20WI 20 W 1“ x 1“ package, 4:1 input, high perfor-
required. Fan speed control also brings mance,
other advantages such as reducing power
consumption and increasing life expectancy.
cost optimized smallest 20 W converter!
It can also allow other parts of the system to run TEN-20WIR 20 W 2“ x 1“ package, 4:1 input incl. high input
more efficiently too, by stabilising head pressure in range
a refrigeration circuit for example.
43-160 VDC, EN 50155 for railway applications
By communicating with the onboard electronics TEN-40N 40 W 2“ x 1“ package, 4:1 input, high perfor-
of EC fans, closed loop speed control has never find out more about the ebm-papst mance,
been easier. Using an RS-485 interface supporting range of fans available from RS at
smallest 40W converter!
the Modbus RTU protocol, ebm-papst EC fans rswww.com/ebmpapst
provide both speed control, through pulse width TEP-150WI 150 W High power module, new available with
modulation (PWM) and 0-10volt input signals, and filter
speed monitoring. option to meet EN 55022 class B
Get more online...
Unlike the more familiar RS-232, RS-485 can be Share your thoughts on fan technology
configured to act as a simple network allowing at www.designspark.com
rswww.com For full TRACOPOWER Product Range: www.tracopower.com
26 eTech - ISSUE 6