Service instructions  MX eco 4V  MX pro 4V  MX pro 6V  MX multi-eco  MX multi-pro
General remarksThe following symbols should assist you in handling the instructions:         Advice, tip !         General...
Service of frequency inverters                                                                                 >pDRIVE< MX...
General        Work on live equipment must be done only by duly qualified and trained staff.Unconditionally pay attention ...
Identification of the device                     It is important to identify the respective device on the basis of type an...
Environmental influencesThe frequency inverters >pDRIVE< MX eco & pro provide the following protection degree as standard:...
If the frequency inverter is operated outside the specification, warranty claim expires !!!                             Th...
Factory settingMacros are factory presettings of the parameters for typical applications of the >pDRIVE< MX eco & pro. Whe...
Motor data                     Each >pDRIVE< MX eco & pro frequency inverter provides factory motor data according to its ...
Factory motor data M0 IEC table 690 V:Nominal    Nominal    Nominal   Nominal     Nominal   Stator     Rotor time   Fluxin...
Overview of types                     The frequency inverters >pDRIVE< MX eco & pro are manufactured in different power ra...
MaintenanceThe frequency inverters >pDRIVE< MX eco & pro are low-maintenance units and contain no moving partsexcept the f...
Maintenance of fans                     The frequency inverters up to >pDRIVE< MX eco 4V110, MX pro 4V90/110 and MX pro 6V...
Exchanging the power part fansThe power part fans are 400 V AC fans and located below the terminal panel on the lower end ...
The drawing shows as example the power part fan of a >pDRIVE< MX eco 4V200. To all other power ratings                    ...
TroubleshootingDiagnosticsComprehensive diagnostic functions are available in order to make troubleshooting and problem so...
Power path                     This function shows the power path Mains - Inverter - Motor. Moreover the most important va...
Reference value pathShows the parameterization and the actual values of the reference value path from the reference source...
Combination of comparators                     Shows the active comparators, logic modules, SR modules and time modules in...
Fault memoryBy using this function, the last eight trip messages (incl. operating states) can be read out. Furthermore the...
Data Logger                     The function of the Data Logger offers the possibility to record up to three channels in t...
Troubleshooting guideThe troubleshooting guide makes a first and easy fault definition possible.            Proper lighten...
Fault memory                     The fault memory provides a protocol of the last eight fault shut-downs and therefore it ...
Trip messages                                                                                                   MX ecoE01 ...
MX eco                     E03 Line overvoltage                                                                           ...
MX ecoE06 Precharging fault                                                                                               ...
MX eco                     E10 Overcurrent                                                                                ...
MX ecoE12 Insulation fault                                                                                                ...
MX eco                     E15 Motor phase fault 3p                                                                       ...
MX ecoE20 Unknown MC                                                                                                    MX...
MX eco                     E25 IGBT fault                                                                                 ...
MX ecoE32 MC E² zones invalid                                                                                             ...
Service instructions
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Service instructions

  1. 1. Service instructions MX eco 4V MX pro 4V MX pro 6V MX multi-eco MX multi-pro
  2. 2. General remarksThe following symbols should assist you in handling the instructions: Advice, tip ! General information, note exactly !The requirements for successful commissioning are correct selection of the device, proper planning and installation. If you haveany further questions, please contact the supplier of the device.Capacitor discharge !Before performing any work on or in the device, disconnect it from the mains and wait at least 15 minutes until the capacitors havebeen fully discharged to ensure that there is no voltage on the device.Automatic restart !With certain parameter settings it may happen that the frequency inverter restarts automatically when the mains supply returnsafter a power failure. Make sure that in this case neither persons nor equipment is in danger.Commissioning and service !Work on or in the device must be done only by duly qualified staff and in full compliance with the appropriate instructions andpertinent regulations. In case of a fault contacts which are normally potential-free and/or PCBs may carry dangerous voltages. Toavoid any risk to humans, obey the regulations concerning "Work on Live Equipment" explicitly.Terms of deliveryThe latest edition "General Terms of Delivery of the Austrian Electrical and Electronics Industry Association" form the basis of ourdeliveries and services.Specifications in this documentWe are always anxious to improve our products and adapt them to the latest state of the art. Therefore, we reserve the right tomodify the specifications given in this document at any time, particular those referring to weights and dimensions. All planningrecommendations and connection examples are non-binding suggestions for which we cannot assume liability, particularlybecause the regulations to be complied depend on the type and place of installation and on the use of the devices.All foreign-language translations result from the German or English version. Please consider those in case of unclarity.Basis of contractThe specifications in text and drawings of this document are no subject of contract in the legal sense without explicit confirmation.RegulationsThe user is responsible to ensure that the device and its components are used in compliance with the applicable regulations. It isnot permitted to use these devices in residential environments without special measures to suppress radio frequencyinterferences.Trademark rightsPlease note that we do not guarantee that the connections, devices and processes described herein are free from patent ortrademark rights of third parties.CopyrightLayout, equipment, logos, texts, diagrams and pictures of this document are copyrighted. All rights are reserved.
  3. 3. Service of frequency inverters >pDRIVE< MX eco & pro 0.75...630 kW, 3 AC 380...480 V; 2.2...800 kW, 3 AC 500...690 V Parameters and their settings refer to software version APSeco_B04_05 or APSpro_B04_05 Theme Page Theme Page General ...................................................................... 2 Defects of the display........................................................43 Identification of the device ................................................. 3 Other malfunctions ............................................................44 Storage ............................................................................... 3 Hardware diagnostics ..............................................50 Environmental influences.................................................... 4 Overview of the components ............................................50 Application remarks............................................................ 5 Diagnostic LEDs ................................................................50 Factory setting .................................................................... 6 Fuses .................................................................................56 Motor data .......................................................................... 7 Checking the current transformers ...................................60 Overview of types ............................................................... 9 Insulation measurement ....................................................62 Maintenance ............................................................ 10 Voltage levels.....................................................................62HTSI Visual inspection............................................................... 10 Measuring points for the DC link voltage ..........................63 Cleaning the heat sink ...................................................... 10 Software concept.....................................................64 Cooling air holes and filter mats....................................... 10 Spare part concept ..................................................65 Maintenance of fans ......................................................... 11 Training concept ......................................................65 Load test ........................................................................... 13 Reference value distributor ......................................66 Troubleshooting....................................................... 14 Summary of limitations ............................................688 P01 035 EN.01/01 Diagnostics ....................................................................... 14 Plans.........................................................................69 PC software Matrix 3 ........................................................ 14 Troubleshooting guide...................................................... 20 Warranty Report .....................................................113 Fault memory .................................................................... 21 Trip messages .................................................................. 22 The instructions in hand cover the topics maintenance, diagnostics and trouble shooting. Use this instructions additionally to the device documentation "Operating instructions", "Description of functions" and "Mounting instructions". Details for projecting can be found in the product catalogue. 1
  4. 4. General Work on live equipment must be done only by duly qualified and trained staff.Unconditionally pay attention to following points: • Never touch live parts. • Only use suitable tools and proper measuring instruments according to the protection classes (I, II, III or IV). • Take care of correct work clothes and eye protection. • Work on live equipment must be done only under attendance of a second skilled person. • For human protection an insulated, non-grounded mat has to be used. Please also see the safety directives of EN 50110 "Work on electric installations below 1 kV AC and 1.5 kV DC".Generally defect units are replaced by exchange devices.All >pDRIVE< MX eco & pro up to 18.5 kW have a compact power part and therefrom they are typicallyreplaced as a whole. Exceptions are the Matrix operating panel BE11, option cards used and fans. HTSIAll >pDRIVE< MX eco & pro from 22 kW are designed in such a way, that service can be done on module level.For devices from 90 kW an additional tool for removing and fitting (>pDRIVE< "Exchange tool") is supplied,which is returned after exchange together with the defect inverter. Please consult our competent service experts in case of severe faults, which cannot be solved by 8 P01 035 EN.01/01 means of this instruction. Before exchanging defect parts or fuses, the cause of fault must be found. Exchanging parts without eliminating the cause of fault leads to a new breakdown and may even enlarge the dimension of damage. Check as well the ambient conditions before exchanging defect parts or the whole device. See also chapter "Environmental influences", page 4.2
  5. 5. Identification of the device It is important to identify the respective device on the basis of type and serial number in case of maintenance and repair. These information are required especially when contacting the service department or ordering spare parts. There are two possibilities to identify a device: 1. Read off the data on the name plate of the device. The name plate is always placed on the lower right sight of the housing. 2. Read off the values of parameter F1 These information are absolutely necessary for maintenance and repair: Type: Name plate or F1.01 Serial no.: Name plate or F1.05HTSI8 P01 035 EN.01/01 Storage Storage temperature -25°C to 70°C In case of storage times up to 3 years no special treatment of the frequency inverter is necessary due to the comparatively low sharing resistors. In order to guarantee the life cycle we recommend applying voltage to the inverter for about 1 hour before pulse enable takes place. This process is also called forming the electrolytic capacitors !! 3
  6. 6. Environmental influencesThe frequency inverters >pDRIVE< MX eco & pro provide the following protection degree as standard: >pDRIVE< MX eco & pro up to 75 kW from 90 kWFront and sideways IP21 IP31Top IP41, IP20 without protective cover 4V: IP20, IP31 with DCL box 6V: IP20, IP31 with TRAFO-BOXBottom IP21 IP00, IP31 with terminal boxThe cooling channel of the power part is separated from the control electronics for all devices and correspondswith IP54.If a higher protection degree is desired or required, additional measures have to be taken (e.g. installation in acubicle).The permissible pollution degree of the environment is pollution degree 2 according to EN 61800-5-1 for thewhole power range.According to EN 60721-3-3 the following applies up to 75 kW Class 3C1 and 3S2 from 90 kW: Class 3C2 and 3S2Use of frequency inverters in waste water treatment plants HTSISewage gases may contain ammoniac which cause oxidation of bright copper. In this case, components of thecontrol and power electronics will corrode and this leads to a malfunction of the device !Use of frequency inverters in dust polluted environment (e.g. waste incineration plants)Please be aware of the risk of conductive (metal-)dust and the impact on the inverter electronics. Conductive 8 P01 035 EN.01/01dust causes short circuit of components and thus results in damage.Use of frequency inverters in the vicinity of crushing plantsPlease observe that dust is produced in varying size and consistence in the vicinity of crushing plants (e.g.shredders). The use of the inverters has to take place in that way, that a contamination with dust is impossible.CondensationGenerally the operation of the frequency inverter in condensing environment is forbidden. Also condensationwithout mains voltage supply causes in interaction with dust (e.g. at chalk-pits) oxidation of copper (eventhrough solder resist).Correctives in case of the described environmental influences may be:• Installation of the frequency inverters aloof from contaminated areas.• Cooling air for the inverter supplied from a clean area through a separated air flow channel (overpressure ventilation).• Appropriate high protection degree of the cubicle (take care of sufficient cooling!).4
  7. 7. If the frequency inverter is operated outside the specification, warranty claim expires !!! This applies for example in case of: • Conductive dust • Humidity and condensation • Aggressive atmosphere • Operation outside the specified temperature range • Non-compliance with pollution degree 2 according to EN 61800-5-1 Application remarks The use of the >pDRIVE< MX eco & pro frequency inverters is basically in all mains variants permitted. But >pDRIVE< MX pro 6V devices must not be operated in "Corner Grounded Networks". For nongrounded mains (typical for industrial mains) the built-in radio frequency interference filter has to be adapted by means of switch-over/reconnection. In this case the maximal allowed pulse frequency is 4 kHz. Please observe the remarks in chapter "Nongrounded mains" of the corresponding mounting instructions !HTSI Switching between motor and inverter reduces the life cycle of the power part. Therefore the frequency inverter must be locked with impulse inhibit first and after switching it has to be enabled delayed or set parameter C6.08 "Motor contactor control" to "1 .. VSD controlled" or "2 .. External control".8 P01 035 EN.01/01 Avoid the use of reversing contactors to change the rotational direction. If avoiding is not possible, at least an interlock with the inverter has to be provided ! Motors with attached magnetic spring-loaded brake must be supplied externally and not from the inverter output ! Fans of forced ventilated motors must be supplied externally and not from the motor terminal box ! 5
  8. 8. Factory settingMacros are factory presettings of the parameters for typical applications of the >pDRIVE< MX eco & pro. Whenloading a macro, the application data in the EEprom are overwritten. Parameter groups such as motor data,language setting, fault memory, operating hours, texts and basic communication settings as well as theparameter settings stored in the "Backup" remain unchanged.Using parameter B2.02 "Macro selection", the parameter settings according to the selected macro are loadedinto the device memory. The macro M1 corresponds to the factory setting.The following parameters are not reset by loading a macro:Parameter Parameter ParameterA2.17 Symbol for A2.13 B4.17 Nominal power M2 *) B4.61 EMC constant SM2 *)A2.18 Unit for A2.13 B4.18 Nominal current M2 *) B4.62 d-axis inductivity SM2 *)A2.23 Symbol for A2.19 B4.19 Nominal voltage M2 *) B4.63 q-axis inductivity SM2 *)A2.24 Unit for A2.19 B4.20 Nominal frequency M2 *) B4.64 Stator resistor SM2 *)B1.01 Select language B4.21 Nominal speed M2 *) C4.37 Process unitB2.02 Macro selection B4.24 Stator resistor M2 *) C6.24 Symbol pulse counterB2.03 Parameter mode B4.25 Rotortime constant M2 *) C6.25 Pulse counter unitB2.04 Create backup B4.26 Fluxing current M2 *) C6.41 Start distancemeasuring HTSIB2.05 Restore backup B4.27 Stray reactance M2 *) E3.09 Enable emergency op.B2.06 Copy parameter set B4.40 Load default motor *) E3.38 Ext. fault 1 nameB2.07 Name parameter set 1 B4.44 Nominal power SM1 *) E3.45 Ext. fault 2 nameB2.08 Name parameter set 2 B4.45 Nominal current SM1 *) E5.04 Copy: MX -> KeypadB3.16 Inverter power B4.46 Nominal voltage SM1 *) E5.05 Copy: Keypad -> MX 8 P01 035 EN.01/01B3.30 Switch. frequency B4.47 Nominal speed SM1 *) F1.05 Drive serial numberB4.03 Start tuning B4.48 No. of pole pairs SM1 *) F1.06 Facility descriptionB4.05 Nominal power M1 *) B4.50 EMC constant SM1 *) F1.08 Service noticeB4.06 Nominal current M1 *) B4.51 d-axis inductivity SM1 *) F2.42 Test encoderB4.07 Nominal voltage M1 *) B4.52 q-axis inductivity SM1 *) F2.45 Simulation modeB4.08 Nominal frequency M1 *) B4.53 Stator resistor SM1 *) F2.46 Software resetB4.09 Nominal speed M1 *) B4.55 Nominal power SM2 *) F4.45 IGBT overload timeB4.12 Stator resistor M1 *) B4.56 Nominal current SM2 *) F6.01 CodeB4.13 Rotortime constant M1 *) B4.57 Nominal voltage SM2 *) F6.02 Code valueB4.14 Fluxing current M1 *) B4.58 Nominal speed SM2 *) F6.05 Service codeB4.15 Stray reactance M1 *) B4.59 No. of pole pairs SM2 *)*) Use parameter B4.40 "Load default motor" if there is a need to reset the motor data to factory setting as well.Reset of the fault memoryThe whole fault memory can be canceled by entering "7635" in parameter F6.05 Service code. In this wayimportant information for analysis of faults get lost and thus this function should only be used in exceptionalcases.Reset of operating hours metersAll operating hours meters can be canceled by entering "1966" in parameter F6.05 Service code. In this wayimportant information for analysis of faults get lost and thus this function should only be used in exceptionalcases. In parameter F6.05 Service code only codes described in these instruction may be entered. Otherwise malfunction and loss of guarantee may occur.6
  9. 9. Motor data Each >pDRIVE< MX eco & pro frequency inverter provides factory motor data according to its power. These motor data are the basis for operating the frequency inverter but usually they are adjusted by entering the data of the rating plate or they are improved by the determined autotuning data. When changing a motor parameter the autotuning data get lost. That means that autotuning has to be executed again after each change of a motor parameter! Factory motor data M0 IEC table 400 V: Nominal Nominal Nominal Nominal Nominal Stator Rotor time Fluxing Stray power voltage current frequency speed resistor constant current reactance [kW] [V] [A] [Hz] [rpm] [mOhm] [ms] [A] [mH] B4.29 B4.30 B4.31 B4.32 B4.33 B4.36 B4.37 B4.38 B4.39 0.75 400 2.1 50 1368 2965 44.0 1.63 30.9 1.5 400 3.4 50 1386 1270.5 67.9 2.31 15.3 2.2 400 4.7 50 1400 902.5 84.9 3.03 11.8 3 400 6.1 50 1410 641.5 103 3.73 9.69 4 400 8.5 50 1425 419.5 112 5.52 6.48 5.5 400 11 50 1430 933 134 6.66 5.44 7.5 400 14.8 50 1442 568.5 165 8.87 4.09HTSI 11 400 21 50 1450 271.8 205 12.1 3.03 15 400 28 50 1455 184.7 239 15.5 2.36 18.5 400 34 50 1464 162.8 307 18.5 1.99 22 400 40 50 1468 116.5 354 21.4 1.72 30 400 53 50 1473 81.7 453 26.8 1.388 P01 035 EN.01/01 37 400 66 50 1475 55.2 474 34.2 1.08 45 400 79 50 1475 47 497 39.5 0.941 55 400 97 50 1475 31.9 490 49.0 0.758 75 400 130 50 1475 25.8 518 62.9 0.592 90 400 153 50 1480 18.7 687 70.7 0.528 110 400 188 50 1485 15.44 891 88.8 0.420 132 400 230 50 1485 10.68 836 114 0.326 160 400 272 50 1485 6.98 908 127 0.295 200 400 342 50 1486 4.88 952 162 0.230 250 400 427 50 1486 3.61 956 202 0.185 315 400 525 50 1490 2.52 1456 232 0.162 355 400 592 50 1490 2.23 1453 262 0.143 400 400 659 50 1490 1.78 1527 280 0.134 500 400 804 50 1492 1.625 2132 311 0.121 630 400 979 50 1492 1.13 2634 315 0.121 7
  10. 10. Factory motor data M0 IEC table 690 V:Nominal Nominal Nominal Nominal Nominal Stator Rotor time Fluxing Straypower voltage current frequency speed resistor constant current reactance[kW] [V] [A] [Hz] [rpm] [mOhm] [ms] [A] [mH]B4.29 B4.30 B4.31 B4.32 B4.33 B4.36 B4.37 B4.38 B4.390.75 690 1.2 50 1368 11556 44.8 0.93 92.01.5 690 2 50 1386 4952 66.3 1.38 45.12.2 690 2.8 50 1400 3517 80.9 1.86 33.03 690 3.6 50 1410 2500 99.3 2.25 27.64 690 4.7 50 1425 1636 123 2.89 21.65.5 690 6.4 50 1430 1424 133 3.89 16.07.5 690 8.4 50 1442 1055 173 4.88 12.911 690 12 50 1450 612 212 6.72 9.4015 690 16 50 1455 416 248 8.65 7.3418.5 690 20 50 1464 367 296 11.2 5.6722 690 23 50 1468 263 362 12.1 5.2730 690 31 50 1473 184 441 16.0 3.9937 690 38 50 1475 124 483 19.4 3.3045 690 46 50 1475 106 490 23.2 2.7655 690 55 50 1477 71.8 570 26.4 2.4475 690 74 50 1478 58.1 624 34.2 1.8890 690 89 50 1480 42.1 678 41.5 1.55 HTSI110 690 109 50 1482 34.7 746 51.3 1.26132 690 130 50 1484 24.1 855 60.3 1.07160 690 157 50 1485 15.7 923 72.2 0.894200 690 195 50 1486 11 1011 88.0 0.734250 690 240 50 1486 8.12 1076 103 0.629315 690 300 50 1488 5.67 1294 126 0.517 8 P01 035 EN.01/01355 690 341 50 1490 5.02 1491 148 0.439400 690 381 50 1491 4.01 1714 160 0.404500 690 468 50 1492 3.67 2088 184 0.353630 690 574 50 1492 2.54 2434 198 0.331800 690 727 50 1493 2.16 2821 248 0.2658
  11. 11. Overview of types The frequency inverters >pDRIVE< MX eco & pro are manufactured in different power ratings. These ratings correspond with the IEC standard motors and have different dimensions and designs. Integrated Type of Power part Diagnostic MX eco MX pro 4V MX pro 6V braking unit 1) charging fan LEDs 4V0,75 4V0,75 − Resistance DC − 4V1,5 4V1,5 − Resistance DC − 4V2,2 4V2,2 − Resistance DC − 4V3,0 4V3,0 − Resistance DC − 4V4,0 4V4,0 − Resistance DC − 4V5,5 4V5,5 − Resistance DC − 4V7,5 4V7,5 − Resistance DC − 4V11 4V11 − Resistance DC − 4V15 4V15 − Resistance DC − 4V18 4V18 − Resistance DC − − − 6V2,2/3,0 Thyristor DC − − − 6V3,0/4,0 Thyristor DC − − − 6V4,0/5,5 Thyristor DC − − − 6V5,5/7,5 Thyristor DC − − − 6V7,5/11 Thyristor DC −HTSI − − 6V11/15 Thyristor DC − − − 6V15/18 Thyristor DC − − − 6V18/22 Thyristor DC − 4V22 4V22 6V22/30 Thyristor DC − 4V30 4V30 6V30/37 Thyristor DC −8 P01 035 EN.01/01 4V37 4V37 6V37/45 Thyristor DC − 4V45 4V45 6V45/55 Thyristor DC − 4V55 4V55 6V55/75 Thyristor DC − 4V75 4V75 6V75/90 Thyristor DC − 4V90 − − Thyristor DC − 4V110 4V90/110 − Thyristor DC − 4V132 4V110/132 − Thyristor 1 x AC − − − 6V90/110 Thyristor 1 x AC − − 6V110/132 Thyristor 1 x AC 4V160 4V132/160 6V132/160 Thyristor 1 x AC 4V200 4V160/200 6V160/200 Thyristor 1 x AC − − 6V200/250 − Thyristor 2 x AC 4V250 4V200/250 6V250/315 − Thyristor 2 x AC 4V315 4V250/315 6V315/400 − Thyristor 2 x AC 4V355 − − − Thyristor 3 x AC 4V400 4V315/400 − − Thyristor 3 x AC 4V500 2) 4V400/500 2) − − Thyristor 3 x AC − − 6V400/500 2) − Thyristor 4 x AC − − 6V500/630 2) − Thyristor 4 x AC 4V630 2) 4V500/630 2) 6V630/800 2) − Thyristor 4 x AC 1) Only devices of the >pDRIVE< MX pro range have a braking unit built-in or can be equipped with an external braking unit. 2) 12-pulse-rectifier 9
  12. 12. MaintenanceThe frequency inverters >pDRIVE< MX eco & pro are low-maintenance units and contain no moving partsexcept the fans. The maintenance intervals depend on the power-on time (0...24 h) and the environmentalconditions of the plant (influences by application and environment).Visual inspectionDuring visual inspection the overall condition of the inverter installation should be checked for following points: − Mechanical damages of the housing − Traces of oxidation caused by humidity, aggressive gases or liquids − Dust sedimentation inside the inverter, especially conductive dust − Dirt and dust sedimentation on the heat sink and the motor terminal board − Damages of cable isolation (especially at the inverter lead-through) − Take the actual parameter settings and compare them with the commissioning settingsCleaning the heat sink HTSIParameter A3.05 "Thermal load VSD" shows the thermal balance which arises from the two factors load andcooling conditions. If the thermal load reaches 105 %, a fault shut-down "Inverter over temperature" occurs.Reset can be done if the thermal load is below 80 % again. If parameter A3.05 reaches high values (values near 100 %) even at low load and ambient temperature, 8 P01 035 EN.01/01 it is necessary to clean the heat sink and to check the cooling conditions.Cooling air holes and filter matsIf the inverters are mounted in a cubicle, the cooling air holes and filter mats, if existing, have to be regularlychecked and exchanged. Removing the filter mats enables intrusion of dangerous substances, which leads to loss of warranty claim in case of damage !10
  13. 13. Maintenance of fans The frequency inverters up to >pDRIVE< MX eco 4V110, MX pro 4V90/110 and MX pro 6V75/90 contain DC fans for cooling the power part and the control part. The inverters from >pDRIVE< MX eco 4V132, MX pro 4V110/132 and MX pro 6V90/110 contain DC fans for cooling the control part and AC fans for cooling the power part. The fans of the power part are switched off during impulse inhibit or low load if parameter B3.41 "Fan control" is set appropriate. Life cycle of DC-fans: approx. 30.000 hours Life cycle of AC-fans: approx. 48.000 hours The ambient condition has an effect on the life cycle of the fans. Parameters A5.10 "Operating hours fan" and A5.12 "Interval counter fan" show the actual operating time of the AC fans in the display. By means of parameter A5.11 "Interval fan" a maintenance message can be released after reaching a preset operation time. The fans for the control part start running as soon as the inverter is applied with voltage. Therefore these fans should be replaced precautionary after five years! Exchanging the control part fansHTSI The fans for the control part are 24 V DC fans and are located in the upper part of the inverter (see chapter "Plans", page 69). Depending on the power the devices are equipped with one to four fans for the control part, marked with M10, M11, M12 and M13. When exchanging a fan from >pDRIVE< MX eco 4V160, MX pro 4V132/160 and MX pro 6V90/110 you have to8 P01 035 EN.01/01 pull the connected plug X30, X31, X32 or X33 and to loosen the four screws. For mounting the new fan proceed in reverse order. The drawing shows as example the control part fan and the corresponding plug for a >pDRIVE< MX eco 4V160. To all other power ratings the description applies analogously. 11
  14. 14. Exchanging the power part fansThe power part fans are 400 V AC fans and located below the terminal panel on the lower end of the inverter(see chapter "Plans", page 69). Depending on the power the devices are equipped with one to four fans for thepower part, marked with M1, M2, M3 and M4.Basically there are two ways to exchange the power part fans:Exchange from the bottomFor this easy and quick method access from below is required. Possibly the mains and motor cables have tobe disconnected therefor.1. Pull off the plug of the fan to be exchanged and thread the cables including the grommet through the terminal panel.2. Loosen both fixing screws of the fan in the lower end of the inverter approx. 5 mm but do not remove.3. Lift up the fan and pull it out downwards.4. Insert the new fan from the bottom, making sure that the upper folding plate sticks into the provided hole.5. Check whether the gaskets are placed in the right way between the fan and the heat sink.6. Fasten both fixing screws of the fan in the lower end of the inverter.7. Thread the plug of the fan and the grommet through the terminal panel and insert the grommet in the right way again.8. Finally connect the plug of the fan again. HTSIExchange from the frontIn this case no access from the bottom is required. This is advantageous e.g. when the terminal box TER-BOXis used.1. Pull off the plugs of all power fans and thread the cables including the grommet through the terminal panel. 8 P01 035 EN.01/012. Unscrew all internal power connections (see following drawing).3. Unscrew all mains connections (L1, L2, L3) and motor connections (U, V, W).4. Remove the control cables by pulling-off the terminals and the cable conduit on the right-hand side.5. Unplug following plugs: Type of device Description up to MX eco 4V315, Unplug the common plug of all current transformers X11 and up to MX pro 4V250/315 and thread the cable out. up to MX pro 6V315/400 for MX eco 4V250 and 4V315, Pull off plugs X1 and X3 on the FCB (A7) and plug X7 on the PB for MX pro 4V200/250 and 4V250/315, (A1) and thread the cable out. for MX pro 6V200/250 to 6V315/400 from MX eco 4V355, Demount the middle front cover support by unscrewing the three from MX pro 4V315/400 and screws. from MX pro 6V400/500 Unplug the Faston-connector on the RFI (A30, A40): X1 (6.3 mm, yellow), X11 (4.8 mm, yellow) X2 (6.3 mm, green), X12 (4.8 mm, green) X3 (6.3 mm, violet), X13 (4.8 mm, violet)6. Unscrew the earth screw on the left inner wall (see following drawing).7. Unscrew the 6 screws of the terminal panel and lift it to the front.8. Loosen both fixing screws of the fan(s) in the lower end of the inverter approx. 5 mm but do not remove.9. Lift up the fan, push it downwards and pull it out forward.10. Insert the new fan making sure that the upper folding plate sticks into the provided hole.11. Check whether the gaskets are placed in the right way between the fan and the heat sink.12.Fasten both fixing screws of the fan in the lower end of the inverter.13.Execute points 1...6 in reverse order.12
  15. 15. The drawing shows as example the power part fan of a >pDRIVE< MX eco 4V200. To all other power ratings the description applies analogously.HTSI8 P01 035 EN.01/01 For fastening the power connections (internal power connections as well as mains and motor connections) use the following tightening torques: M10 (wrench size 16/17): 24 Nm M12 (wrench size 18/19): 41 Nm Load test Each maintenance should be concluded by a load test (preferable with nominal load). Thereby the overall behaviour of the drive should be observed (dynamic behaviour, oscillations, ...). Additionally the input and output currents should be measured and checked for symmetry in all three phases. After this check the thermal stress of the power terminals when there is no voltage. 13
  16. 16. TroubleshootingDiagnosticsComprehensive diagnostic functions are available in order to make troubleshooting and problem solving easier(e.g. data logger, status displays of inputs and outputs, analog checkpoints and status displays of the powerpart and the option cards. The detailed description of diagnostic functions can be found in the "Description of functions", parameter group F4.PC software Matrix 3The PC software Matrix 3 is provided on the CD which is attached to each inverter and can be downloadedfrom the homepage www.pdrive.com alternatively. Besides online parameterization functions it affords anextensive and clear online diagnostics. This function shows all inverter states in a concise graphic way. HTSI For communication between PC and inverter a RS232/485 converter is necessary (CABLE 3-PC, Order no. 8 P01 124). The interface cable of Matrix 2 can not be used! Wrong screen resolutions may lead to display problems. 8 P01 035 EN.01/01 Following screen resolution is recommended: 1024x768 or higher.Following functions are available in the online diagnostics:Device descriptionThis function provides a quick overview of the most important inverter data as e.g. inverter type, softwareversion, operating hours, option cards, a.s.o.14
  17. 17. Power path This function shows the power path Mains - Inverter - Motor. Moreover the most important values are shown. Input/Output state Clear display of parameter settings and status of the individual in- and outputs of the basic card and the optionHTSI cards.8 P01 035 EN.01/01 15
  18. 18. Reference value pathShows the parameterization and the actual values of the reference value path from the reference source up tothe inverter reference value. HTSIBus settingsShows the parameterization and the actual values of the bus configuration. 8 P01 035 EN.01/0116
  19. 19. Combination of comparators Shows the active comparators, logic modules, SR modules and time modules including their configuration and state. If none of these functions is used, this tab is empty. Configurable displayHTSI The configurable display enables the display of selected parameters in list form. Moreover four digital and three analog signals can be shown.8 P01 035 EN.01/01 The modification of the channels in the status range also changes the channel settings in the trend recorder and in the online parameterization. 17
  20. 20. Fault memoryBy using this function, the last eight trip messages (incl. operating states) can be read out. Furthermore the tripmessages can be saved as flt-file.Trend recorder HTSIThe trend recorder enables to make a real-time recording of selectable analog and digital signals. Furthermoreuseful functions like trigger and cursor are provided. The recorded curves can be saved as trd-file. 8 P01 035 EN.01/0118
  21. 21. Data Logger The function of the Data Logger offers the possibility to record up to three channels in time averaged form or as peak value. The recording serves as listing or as statistical evaluation of electrical values (e.g. energy) or known process values of the inverter (pressure, flow, speed, vibration). Thereby the number of channels, the value to be recorded and the time base can be set. The recorded data can be saved as stc-file. Before starting a record, this function has to be enabled and set up in parameter group F4. For detailed parameter description please also see the "Description of functions".HTSI8 P01 035 EN.01/01 19
  22. 22. Troubleshooting guideThe troubleshooting guide makes a first and easy fault definition possible. Proper lightening Is there a trip YES and display of the YES indicated on the operating panel? display? NO NO Start the motor via the Are the mains YES operating panel or the fuses defect? control terminals. NO Are the fuses YES Is there a trip YES F1-F3 on the RFI indicated on the board defect? display? HTSI NO NO Check the mains voltage at the Check motor running. Disconnect inverter input for value and symmetrie. Carry out fine adjustment if the motor. Check the components upstream and necessary (autotuning and 8 P01 035 EN.01/01 the wiring as well. dynamic parameters) Is the mains Is there still NO YES voltage applied to a fault? the inverter? YES NO Check the internal Defect varistors or Check the power Handle the trip Check the Further voltage supply, defect power board, semiconductors, message motor and the checking see chapter see chapter according to cables alternatives complete service! "Hardware "Hardware chapter are given in (check Y/Δ- diagnostics“. diagnostics“. "Troubleshooting“. chapter connection, "Diagnostic make LEDs" insulation measurement)General advice for troubleshooting: • If a fault occurs during commissioning, the reason is in all probability an external fault because the inverters are checked for full functionality before delivery. • When a fault occurs after some time in operation, the reason could be either an external fault or an inverter fault.20
  23. 23. Fault memory The fault memory provides a protocol of the last eight fault shut-downs and therefore it supports you in detecting the cause of the fault. For each fault shut-down a number of operating states are stored and provided for manual evaluation. The fault memory can be also read out automated when using the PC software Matrix 3. F3.01 Number of faults Last entry in the memory: 15 F3.02 Review 2 .. Event -2 1 .. Last event -1 0 .. Last event F3.03 Fault number 13 14 15 F3.04 Fault cause 52 .. Stall protection 19 .. ϧ M1 >> 58 .. External fault 1 F3.05 Operating hours 1362h 1438h 1817h F3.06 Min / sec 13.17 m:s 55.32 m:s 2.55 m:s F3.07 Reference value [Hz] +50.0 Hz +22.0 Hz +50.0 Hz F3.08 Actual value [Hz] +0.7 Hz +22.0 Hz +50.0 Hz F3.09 Output current 60.2 A 47.8 A 34.2 AHTSI F3.10 DC voltage 533 V 541 V 545 V F3.11 Thermal load VSD 13 % 82 % 73 % F3.12 Control mode Terminals Terminals Terminals F3.13 Operating status Acceleration f = f ref f = f ref F3.14 Alarm message - ϑM1 > -8 P01 035 EN.01/01 F3.15 Drive state RUN RUN RUN F3.16 Bus STW 007F 007F 007F F3.17 Bus ZTW 007F 007F 007F All diagnostic values correspond to the actual values 10 ms before fault shut-down. 21
  24. 24. Trip messages MX ecoE01 Undervoltage MX proDescription There is an undervoltage situation. See parameter E3.29 "V< response".Cause The mains voltage is missing or out of the specified range.Remedy Check all three mains phases and fuses. If an operation with partial load is possible, check the three line currents for symmetry by measurement in a stable operating state (max. permissible unsymmetry of currents approx. 3 %).Cause If the message occurs immediately after power up, the charging circuit does not work correctly.Remedy Check LED 8 and 9. If both LEDs are alright, make a measurement of the input rectifier (see chapter "Measurement of power semiconductors", page 57).Cause Loss of line phase occurs at deactivated line phase monitoring (E3.27) and full load.Remedy Check the value and wave form of the three mains phases and also check the mains fuses. The voltage levels of the undervoltage trigger are given in chapter "Voltage levels", page 62. MX ecoE02 V>> at deceleration MX proDescription The DC link voltage has exceeded the hardware protection level of 825 V (for MX pro 6V: 1174 V) due to a deceleration.Cause The set deceleration ramp is too short or "Fast stop" is used. Therefore the motor works as generator. HTSIRemedy Extend the deceleration ramp or use B5.01 "Brake mode" for activating the motor brake or the braking unit. Deactivate setting "4 .. Extend & trip" of parameter E1.21 "Reaction at deceleration" or extend E1.22 "Time Δt".Cause Instable controller due to wrong motor data (e.g. autotuning was performed with warm 8 P01 035 EN.01/01 motor)Remedy Execute autotuning again with cold motor.Cause Instable controller due to wrong dynamic settings (MX eco: B3.20 and B3.21, MX pro: C5.01...C5.03)Remedy Optimize the controller settings empirically on the basis of the factory settings.Cause A sinus filter is used but B3.02 Control mode is not set to "V/f" (for devices from MX eco 4V90, MX pro 4V90/100 and MX pro 6V90/110 a parameterization alarm is displayed).Remedy Choose a proper V/f control method with B3.02.Cause When using a >pDRIVE< MX pro in exchange for an MX plus, an overvoltage switch-off takes place during deceleration with the existing braking resistors.Remedy Use braking resistors as specified in the catalogue.22
  25. 25. MX eco E03 Line overvoltage MX pro Description The DC link voltage has exceeded the protection level of 756 V (for MX pro 6V: 1087 V). This fault is only evaluated during the charging process! With devices up to 75 kW this message also appears when the hardware protection level of 825 V (for MX pro 6V: 1174 V) has been exceeded in case of impulse inhibit. Cause Mains voltage fluctuations or voltage peaks may occur because of mains voltage return (choke energy causes voltage raise) or because of commutation drops caused by other loads. Remedy Check the DC link voltage by means of parameter A3.04 "DC voltage" and a measuring instrument (at no-load operation approx. 1.4 x VMains; at full load approx. 1.35 x VMains). If the displayed value does not comply with the measured value, the voltage measurement is defect. Use a line contactor control for immediate disconnection of the DC link from the mains or use a braking unit to limit the DC link voltage. Cause Single phase earth fault in the motor or the motor cable at nongrounded mains Remedy Check the motor and the motor cable → see "Insulation measurements". If the motor cable is disconnected from the inverter, overvoltage must not occur any more. MX eco E04 MC not ready MX pro Description The motor control is not ready within 4 s after the charging process. Cause After the charging process the motor control registers, that e.g. the DC link voltage is out of the specified range or missing or charging is still in progress (∆V too high).HTSI Remedy Check the DC link voltage according to the table in chapter "Voltage levels", page 62. Cause The inverter electronics is supplied externally by 24 V. A start command is given although there is no mains voltage. Remedy Check the mains voltage or switch on the mains supply. Cause8 P01 035 EN.01/01 A mains voltage drop occurs at activated DC holding brake (B5.20). Remedy Deactivate the DC holding brake or update the device to the latest device software. Cause The charging circuit on the soft charge board is defective. Remedy Check the diagnostic LEDs (see chapter "Diagnostic LEDs", page 50). Check all cables at the control block. MX eco E05 DC missing MX pro Description The frequency inverter is operated at the intelligent rectifier >pDRIVE< LX. The DC link voltage, made available by this rectifier, has shut down. Cause Parameter B3.44 of the inverter is set to "Operation with IR" and the DC link voltage fell below the limit (see chapter "Voltage levels", page 62). Remedy Check the DC link voltage (e.g. by means of the PC program Matrix). Check whether the >pDRIVE< LX is dimensioned too small and if it operates properly. Cause The frequency inverter is supplied with an external DC link voltage. Thereby, for example, voltage fluctuations and voltage drops occur due to heavy duty starts nearby the inverter. Remedy Check the DC voltage for voltage drops and the fault memory with parameter F3.10. Discharge the inverter during an external heavy duty start by means of deceleration or impulse inhibit, if the process allows. Use more powerful supply possibly from another power distributor. 23
  26. 26. MX ecoE06 Precharging fault MX proDescription Fault of the soft charge device (half controlled thyristor bridge). Only for devices larger than >pDRIVE< MX eco & pro 4V18 as well as for all >pDRIVE< MX pro 6V.Cause The charging of the DC link has not been completed successfully because the required voltage level has not been reached.Remedy Check the DC link voltage according to the table in chapter "Voltage levels", page 62. Execute the routine "Test charging circuit" by means of parameter F2.41. This test may last up to 20 minutes for devices ≥ 90 kW. Maybe the soft charge board, the power board or the thyristors are defective. Check the diagnostic LEDs (see chapter "Troubleshooting with the aid of LEDs", page 53). MX ecoE08 Line fault 1p MX proDescription Loss of one mains phase This fault is displayed in the drive states "Ready" and "Run" but it is only stored in the fault memory in case of "Run".Cause One phase is missing on the mains supply or the mains phases are very unsymmetrical.Remedy Check the value and wave form of the three mains phases and also check the mains fuses. Check the fuses on the RFI board. Deactivate the mains phase monitoring with parameter E3.27.Cause The inverter is operated at a DC bus. HTSIRemedy Deactivate the mains phase monitoring with parameter E3.27. MX ecoE09 Line fault 2-3p MX proDescription Loss of two or three mains phases 8 P01 035 EN.01/01 This trip message is only stored in the fault memory in case of pulse enable.Cause Two or all three phases are missing on the mains supply or the mains phases are very unsymmetrical.Remedy Check the value and wave form of the three mains phases and also check the mains fuses. Check the fuses on the RFI board.Cause Mains supply disconnected e.g. by emergency OFF button, hoist master switch, ...Remedy Integrate the line contactor control by means of parameter C6.07 or deactivate the mains phase monitoring with parameter E3.27.Cause The inverter is operated at a DC bus.Remedy Deactivate the mains phase monitoring with parameter E3.27.24
  27. 27. MX eco E10 Overcurrent MX pro Description Overcurrent at the output The registration takes place by means of the current transformers or the shunts, a switch-off is carried out approx. at triple nominal current. Cause Short circuit or earth fault in the motor or motor cable. Remedy Check the motor and the motor cables → also see "Insulation measurements". If the motor cable is disconnected from the inverter, overcurrent must not occur any more. Cause The motor is switched during operation of the inverter by means of a motor contactor. Remedy Apply impulse inhibit to the inverter first and then switch the motor lines or use the motor contactor control with parameter C6.08. Cause Faulty inverter part Remedy Execute the IGBT test with parameter F2.40. Cause Overcurrent message in case of encoder operation if parameter B3.02 "Control mode" is set to "4 .. VC feedback" and parameter D5.01 "SFB use for" to "2 .. VC feedback" and motor excitation is not active. Remedy Set parameter B3.27 "Motor fluxing" to "1 .. At start" or "2 .. Always active". Cause The connected motor is significantly larger than the nominal power of the inverter. Remedy Check the dimensioning of motor and inverter. Cause A current transformer is defective. Remedy Check whether the current display at impulse inhibit is approx. zero. Check the diagnostic LEDs of the current transformer supply (see chapter "DiagnosticHTSI LEDs", page 50). Check the current transformers (see chapter "Checking the current transformers", page 60). Cause Instable controller due to wrong motor data (e.g. autotuning was performed with warm motor). Remedy Execute autotuning again with cold motor.8 P01 035 EN.01/01 In case of conus motors the rotor has to be unlocked during autotuning. Cause Motor data are wrong or not adjusted. Remedy Check the setting of the motor data under B4 and execute autotuning. Cause Autotuning has not been executed. Remedy Start the autotuning routine by means of parameter B4.03. Cause Wrong motor connection (Y/Δ) or wiring failure. Remedy Check the connection of the motor, the motor cables and the motor contactor. Cause Oscillations occur because the dynamic settings of the speed controller are not optimized. Remedy Optimize parameters B3.20 and B3.21 for >pDRIVE< MX eco or C5.01 and C5.02 for >pDRIVE< MX pro. Cause Defect power part Remedy Check the three output currents for symmetry by measurement of the three motor currents in a stable operating state (max. permissible unsymmetry of currents approx. 3 %). Execute the IGBT test with parameter F2.40. MX eco E11 Motor earth fault MX pro Description Earth fault at the output. The evaluation by the hardware is only performed for devices up to >pDRIVE< MX eco & pro 4V75 and >pDRIVE< MX pro 6V75/90. For devices with higher power the trip message E12 appears. See trip message E12 for possible causes and remedy. 25
  28. 28. MX ecoE12 Insulation fault MX proDescription Earth fault at the output. The differential current determined from the three motor phases is larger than 25 % of the nominal current of the inverter.Cause There is an insulation fault in the motor or motor cable.Remedy Check the motor and the motor cables → also see "Insulation measurements". When the motor cable is disconnected from the inverter or simulation mode is activated in F2.45, the fault message must not occur any more.Cause Current transformer defectiveRemedy Perform a measurement of the current transformers (see chapter "Checking the current transformers", page 60).Cause Faulty inverter partRemedy Execute the IGBT test with parameter F2.40. MX ecoE13 Overcurrent MX proDescription Overcurrent at the output. The evaluation is only performed for devices up to >pDRIVE< MX eco & pro 4V75 and >pDRIVE< MX pro 6V75/90. For devices with higher power the trip message E10 appears. See trip message E10 for possible causes and remedy. MX ecoE14 IGBT ϧ >> MX pro HTSIDescription IGBT overtemperature (junction temperature), determined by the thermal mathematical model. The thermal mathematical model considers the frequency, current, pulse frequency and the measured heat sink temperature and is primarily decisive at frequencies near zero.Cause The inverter has calculated that the load of the IGBTs was critical. This may happen mainly 8 P01 035 EN.01/01 at low output frequencies < 3 Hz or at DC operation (braking or heating).Remedy Check the application for DC operation or low output frequency operation.Cause The power supply of the fans broke down or the fans are mechanically blocked.Remedy See description of LED functions and power part fans, chapter "Diagnostic LEDs", page 50.Cause Short circuit of a power part fan.Remedy Check the fuses FU1...FU3 on the fan control board.Cause The inverter gets too less cooling air.Remedy Check the cooling air holes for sufficient sizing and clean the filter mats.Cause Ambient temperature or temperature of the supply air too high.Remedy Ensure that the ambient conditions are permitted. Check the cubicle for thermal short circuit. Check the supply and outlet air holes of the cubicle for dirt and enlarge them, if necessary.Cause The encoder is connected wrong.Remedy Exchange the encoder signals channel A and B. Execute a test of the encoder by means of parameter F2.42.26
  29. 29. MX eco E15 Motor phase fault 3p MX pro Description Loss of the three motor phases (recognition at approx. 6% of the set nominal motor current) Cause Loose connection, defect motor, defect cable or defect switching elements Remedy Check the motor, the motor cables as well as all terminals (contact resistance) of disconnecting switches for maintenance purposes, safety switches and contactors. Check the connection between inverter and motor as well as the motor contactor control, if used. Deactivate the monitoring of the motor phases by means of E2.54. Cause The used motor is significant smaller than the nominal power of the inverter. Remedy Use a motor that corresponds with the inverter power (the minimum motor power should not fall below the half nominal inverter power). Deactivate the monitoring of the motor phases by means of E2.54. MX eco E16 Motor phase U lost MX pro Description Loss of motor phase U Recognition takes place only in case of V/f control methods on the basis of the geometrical average of the three phase currents. It is triggered after 0.5 s when current is < 25 % of the nominal current. Cause Loose connection, defect motor, defect cable or defect switching elements Remedy Check the motor, the motor cables as well as all terminals (contact resistance) of disconnecting switches for maintenance purposes, safety switches and contactors.HTSI Deactivate the monitoring of the motor phases by means of E2.54. MX eco E17 Motor phase V lost MX pro Description Loss of motor phase V8 P01 035 EN.01/01 See trip message E16 for possible causes and remedy. MX eco E18 Motor phase W lost MX pro Description Loss of motor phase W See trip message E16 for possible causes and remedy. MX eco E19 Inverter overtemp. MX pro Description Inverter overtemperature (A3.05 "Thermal load VSD" > 105°C), determined by the thermal mathematical model. The thermal mathematical model considers the temperature, current and time. In addition to the heat sink sensor also the powerboard sensor and the braking unit sensor are monitored. Cause The power supply of the fans broke down or fans are mechanically blocked. Remedy See chapter "Diagnostic LEDs", page 50 and chapter "Maintenance of fans", page 11. Cause Short circuit of a power part fan. Remedy Check the fuses FU1...FU3 on the fan control board. Cause The inverter gets too less cooling air. Remedy Check the cooling air holes for sufficient sizing and clean the filter mats. Cause Ambient temperature or temperature of the supply air too high. Remedy Ensure that the ambient conditions are permitted. Check the cubicle for thermal short circuit. Check the supply and outlet air holes of the cubicle for dirt and enlarge them, if necessary. Cause Fan of the control part or the braking unit defect Remedy Check the function and effectiveness of the fans. 27
  30. 30. MX ecoE20 Unknown MC MX proDescription Unknown power partCause After exchanging the control electronics or the power board the versions do not match.Remedy Ensure that proper spare parts have been used. Compare parameters F1.01 and F1.02 with the name plate data.Cause An internal electronics failure occurred.Remedy Shut down mains supply, wait for complete discharge of DC link (LED 1) and switch on again. MX ecoE21 PTC short circuit MX proDescription Short-circuit at a thermistor (PTC) sensor (TH1, TH2, TH3, TH heat sink)Cause A thermistor input or the thermistor of the heat sink is short circuited (value < 50 Ω).Remedy Check the thermistor connections and the thermistor sensors in the motor.Cause DI6 is parameterized as thermistor, but used as a digital input.Remedy Check whether DI6 is used as digital input but parameterized as thermistor.Cause A thermal switch is used instead of a thermistor sensor.Remedy Set TH verification to "0 .. Not active" (parameter E2.05, E2.10, E2.15). If the fault is still present, the internal thermistor is defect. MX ecoE22 PTC open circuit MX pro HTSIDescription A thermistor (PTC) sensor is open (TH1, TH2, TH3, TH heat sink)Cause A thermistor input or the thermistor of the heat sink is open (value > 100 kΩ).Remedy Check the thermistor connections and the thermistor sensors in the motor.Cause DI6 is parameterized as thermistor, but used as a digital input. 8 P01 035 EN.01/01Remedy Check whether DI6 is used as digital input but parameterized as thermistor.Cause A thermal switch is used instead of a thermistor sensor.Remedy Set TH verification to "0 .. Not active" (parameter E2.05, E2.10, E2.15). If the fault is still present, the internal thermistor is defect. MX ecoE23 ASIC Init fault MX proDescription ASIC on the motor control cannot be initialized.Cause An internal failure occurred.Remedy Shut down mains supply, wait for complete discharge of DC link (LED 1) and switch on again. If the fault is still present, the control block has to be exchanged. MX ecoE24 SFB fault MX proDescription Encoder failure (see "Description of functions" D5).Cause Encoder is not connected.Remedy Check the encoder and its connection.Cause Wrong direction of rotation of the encoder.Remedy Exchange signals A and B or change the rotational direction of the motor by interchanging the motor cables or adjust parameters C2.04 "Phase rotation" or D5.04 "Encoder rotation". Finally execute the routine F2.42 "Test encoder".Cause The encoder signal does not correspond with the used option >pDRIVE< SFB.Remedy Check the compatibility of encoder signal and encoder card.28
  31. 31. MX eco E25 IGBT fault MX pro Description The desaturation protection of an IGBT has triggered (an IGBT does not switch on or off within 6 μs). The registration of this fault occurs only with devices larger than >pDRIVE< MX eco & pro 4V75 and >pDRIVE< MX pro 6V75/90. Cause Although an IGBT has got an on-command, it does not switch on or off. Remedy Execute the IGBT test with parameter F2.40. Therefor the motor has to comply at least 30 % of the inverter power. See also chapter "Measurement of power semiconductors", page 57. MX eco E27 IGBT short circuit MX pro Description Electronically determined short circuit at one of the IGBTs during "Power up". Cause During the "Power up" routine all IGBTs are checked for short circuit. Thereby a failure (short circuit or interruption) has been detected for at least one IGBT. Remedy Execute the IGBT test with parameter F2.40. Therefor the motor has to comply at least 30 % of the inverter power. See also chapter "Measurement of power semiconductors", page 57. MX eco E28 Motor short circuit MX pro Description The automatically running test routine B3.43 "Automatic SC test" has detected a short circuit at the output.HTSI Cause There is a short circuit at the inverter output. Remedy Check the motor, the motor cables and connections. Cause Inexact setting of motor data although autotuning as been carried out successfully and also operation without motor contactor control works. Remedy The motor data must exactly comply with the name plate data. Execute autotuning again8 P01 035 EN.01/01 afterwards. Cause In case of motor contactor control the motor contactor is switched on too quickly after switching off. Remedy After disconnection wait at least 5 times of the rotor time constant (B4.14, B4.25, B4.37) before connecting the motor contactor again. MX eco E30 Current measure fault MX pro Description Fault of the current transformer, its voltage supply or the evaluation electronics. The registration of this fault occurs only with devices larger than >pDRIVE< MX eco & pro 4V75 and >pDRIVE< MX pro 6V75/90. Cause Fault of the current transformer, its voltage supply or the evaluation electronics. Remedy Check LEDs 5 and 6 (see chapter "Diagnostic LEDs", page 50). Perform a measurement of the current transformers (see chapter "Checking the current transformers", page 60). MX eco E31 Braking unit fault MX pro Description Fault at the braking unit Cause The IGBT of the braking unit is short circuited. Remedy Perform a measurement of the braking transformer. In order to protect the braking resistor a line contactor has to be integrated (see catalogue, chapter "Braking unit BU"). 29
  32. 32. MX ecoE32 MC E² zones invalid MX proDescription Motor control EEProm defectCause An internal failure of the motor control electronics occurred.Remedy Shut down mains supply, wait for complete discharge of DC link (LED 1) and switch on again. If the fault is still present, the control block has to be exchanged. MX ecoE33 CPU fault MX proDescription Internal electronic faultCause A failure of the internal electronic occurred.Remedy Shut down mains supply, wait for complete discharge of DC link (LED 1) and switch on again. If the fault is still present, the control block has to be exchanged.Cause Excessive use of all software functionsRemedy Deactivate functions which are not required like e.g. function blocks, curve generator or XY graph. MX ecoE34 ISL fault MX proDescription Communication fault on the internal serial linkCause A failure of the internal electronics occurred, e.g. based on external interferences. HTSIRemedy Shut down mains supply, wait for complete discharge of DC link (LED 1) and switch on again. Check whether there is a source of interferences nearby. If the fault is still present, the control block has to be exchanged. MX ecoE35 MTHA fault 8 P01 035 EN.01/01 MX proDescription Asic for time measurement defect (undervoltage time determination).Cause An internal failure occurred.Remedy Shut down mains supply, wait for complete discharge of DC link (LED 1) and switch on again. If the fault is still present, the control block has to be exchanged. MX ecoE36 Overspeed MX proDescription The motor has exceeded the maximum allowed Overspeed level (E2.50).Cause The setting of the motor data is not correct.Remedy Adjust the motor data under B4 according to the name plate data.Cause The overspeed level E2.50 is set too low.Remedy Adapt parameter E2.50 to the application.Cause The application needs higher speed as planed.Remedy Check the application for speed range and generator operation.Cause The fault occurs during catch on the fly.Remedy Increase parameter B3.37 Remanence level.30

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