790 models · 118 manufacturers
AC Drives & VFDs repair
Variable frequency drives for pumps, fans, conveyors and process lines, from fractional kW units to cabinet drives. AC drives fail in a small number of predictable ways: the power stage, the DC link, cooling, or the control electronics. Most can be repaired at component level, which keeps the original drive, its parameters and its wiring in place.
Manufacturers
AC Drives & VFDs by manufacturer
- ABB115
- B&R80
- Yaskawa38
- Siemens38
- Schneider Electric33
- Eurotherm32
- Rexroth23
- Telemecanique23
- Heidelberg20
- Danfoss19
- Baumüller18
- Control Techniques17
- AEG16
- Allen-Bradley15
- Parker14
- Reliance Electric13
- Woodward11
- Benning Bocholt9
- AUMA8
- Stober8
- Berger Lahr8
- Inovance8
- Kromschröder8
- Teco7
- Lust7
- Alstom6
- Jetter6
- Larsen & Toubro6
- Waukesha6
- Bosch6
- Okuma5
- Demag5
- Vickers5
- Semikron5
- Nikki Denso5
- Deutz4
- Hypertherm4
- BHEL4
- Reo Elektronik AG4
- Emerson Network Power4
- Hitachi4
- Panasonic4
- Nordac4
- Sieb & Meyer3
- MAN Roland3
- ESAB3
- Omron3
- Kemppi3
- Jungheinrich3
- Lenze3
- Moog3
- Radiodetection Limited UK3
- Toyo Denki3
- Thermo Fisher Scientific3
Model guides
Fault codes and common faults
Models
AC Drives & VFDs in the catalog
A selection. Pick a manufacturer above for the full list, or search by part number at the top of the catalog.
| Model / part | Manufacturer | Actions |
|---|---|---|
| 0-51839-13Relay board, IRCP PC | Reliance Electric | |
| 00.781.9638Card of XL105 | Heidelberg | |
| 003 UB 0509Control 60A 3.4 heater | Eurotherm | |
| 008 TZ MODEL:SP500AC drive 5HP | Reliance Electric | |
| 00972654 0811404607Valve, proportional flow control | Rexroth | |
| 031-02061-003Card, IGBT base plate | York | |
| 0362140DCDressing spindle type drive | Sieb & Meyer | |
| 0362146IF0000Drive | Sieb & Meyer | |
| 0362146LF0000Digital drive SD2S | Sieb & Meyer | |
| 046170Drive card, water fountain part no. B 37V | MAN Roland | |
| 1.5kW/2.0AC drive, powerFlex 40 HP cat No.22B-D4P0N104 | Allen-Bradley | |
| 1000AVR Unitrol | ABB | |
| 1000Voltage regulator, AVR automatic Unitrol | ABB | |
| 1000 3BHE014557R0006AVR Unitrol | ABB | |
| 1000 CIMR-HB4A0091AAA-45KW/37KWDrive, PCWS model no:a | Yaskawa | |
| 1000 UN-1000b-Z V4 3BHE01557R0043AVR Unitrol | ABB | |
| 1000-15AVR Unitrol | ABB | |
| 1000-15 3BHE014557R0003AVR Unitrol | ABB | |
| 10110DACOPOS multi (A 311) drive | B&R | |
| 102Q31Drive, alspa vntc/wntc power conversion | Alstom | |
| 1084620Main board, durablue PCA | Nordson | |
| 1190-42-06 E4809-045-140-1006Drive card, spindle drive card | Okuma | |
| 119153-66Pump, windjammer vacuum blower | Ametek | |
| 11KW Commander drive | Control Techniques | |
| 1200 1762-L24BWAMicroLogix | Allen-Bradley | |
| 1200 1762-L40BWAMicroLogix | Allen-Bradley | |
| 1200 1762-L40BXBMicroLogix | Allen-Bradley | |
| 121 B00F111Relay micom | Alstom | |
| 1232 0993 KZ ZS3System, MWM TEM ignition P/N | Deutz | |
| 129118 MAX200 SA CH130Unit, CE/LVD chopper of plasma machine | Hypertherm |
- 0-51839-13Relay board, IRCP PC · Reliance Electric
- 00.781.9638Card of XL105 · Heidelberg
- 003 UB 0509Control 60A 3.4 heater · Eurotherm
- 008 TZ MODEL:SP500AC drive 5HP · Reliance Electric
- 00972654 0811404607Valve, proportional flow control · Rexroth
- 031-02061-003Card, IGBT base plate · York
- 0362140DCDressing spindle type drive · Sieb & Meyer
- 0362146IF0000Drive · Sieb & Meyer
- 0362146LF0000Digital drive SD2S · Sieb & Meyer
- 046170Drive card, water fountain part no. B 37V · MAN Roland
- 1.5kW/2.0AC drive, powerFlex 40 HP cat No.22B-D4P0N104 · Allen-Bradley
- 1000AVR Unitrol · ABB
- 1000Voltage regulator, AVR automatic Unitrol · ABB
- 1000 3BHE014557R0006AVR Unitrol · ABB
- 1000 CIMR-HB4A0091AAA-45KW/37KWDrive, PCWS model no:a · Yaskawa
- 1000 UN-1000b-Z V4 3BHE01557R0043AVR Unitrol · ABB
- 1000-15AVR Unitrol · ABB
- 1000-15 3BHE014557R0003AVR Unitrol · ABB
- 10110DACOPOS multi (A 311) drive · B&R
- 102Q31Drive, alspa vntc/wntc power conversion · Alstom
- 1084620Main board, durablue PCA · Nordson
- 1190-42-06 E4809-045-140-1006Drive card, spindle drive card · Okuma
- 119153-66Pump, windjammer vacuum blower · Ametek
- 11KW Commander driveControl Techniques
- 1200 1762-L24BWAMicroLogix · Allen-Bradley
- 1200 1762-L40BWAMicroLogix · Allen-Bradley
- 1200 1762-L40BXBMicroLogix · Allen-Bradley
- 121 B00F111Relay micom · Alstom
- 1232 0993 KZ ZS3System, MWM TEM ignition P/N · Deutz
- 129118 MAX200 SA CH130Unit, CE/LVD chopper of plasma machine · Hypertherm
Common faults
What usually fails on AC Drives & VFDs
Power stage failure
Shorted IGBTs or rectifier diodes, usually after a motor or cable fault, a supply surge or long-term overheating. The drive trips on overcurrent or short circuit at start, or blows input fuses.
DC bus capacitors
Electrolytic capacitors lose capacity with age and heat. Symptoms are DC bus ripple faults, undervoltage trips under load, or a drive that fails after a long shutdown.
Cooling fans and heatsinks
Worn fans and dust-packed heatsinks cause overtemperature trips, often only in summer or at full load.
Control and gate-drive boards
Faults in the control board, gate drivers or switched-mode supply show up as a dead keypad, communication loss, or random trips with no load-side cause.
Braking chopper and resistor
Overvoltage trips while stopping high-inertia loads point to a failed chopper transistor, an open braking resistor or a ramp set too short.
First checks
What to check before calling an engineer
Isolate and lock out the supply, and wait for stored energy to discharge, before opening anything.
Safe for plant staff
- Note the exact fault code and what the machine was doing when it tripped.
- Check that fans turn and that filters and heatsink fins are clear.
- Measure the incoming supply on all three phases.
- With the motor cable disconnected from the drive, have the motor insulation tested.
Leave to a specialist
- Opening the drive or testing the power stage: the DC bus holds a lethal charge after switch-off.
- Replacing IGBT modules, capacitors or gate drivers.
- Reforming capacitors on a drive that has been in storage.
Warranty. Repairs carry a warranty of 30 days to 6 months, depending on the item and the repair; the exact term is confirmed before work starts.
FAQ
AC Drives & VFDs repair questions
Is it worth repairing the AC drive rather than replacing it?+
Usually, yes, when the fault is in the power stage, capacitors, fans or a board. A repair keeps the same drive, frame size and parameters, so nothing in the panel or the control logic has to change.
Can the parameters be kept after repair?+
In most cases the control board and its memory are untouched by a power-stage repair. If the control board itself has failed, send a parameter backup or photos so the settings can be restored.
More manufacturers
AC Drives & VFDs from other manufacturers
- York 031-02061-003
- Nordson 1084620
- Ametek 119153-66
- Shimadzu 225-11250-91DC
- Solis 255K-EHV-5G
- Waters 2695
- SBST 3000
- Nordson 33.8201E
- Yokogawa 436106
- York 65000147
- Pilz AC3.34-1-5-1-1-4-H-4
- Zapi ACE2 FZ5287-0M ACE2 36-48/450
- GE AF-650 GP 6KGP43025X9XXXA1
- Me.ro B6822-B
- Me.ro B9343
- HPE Power BALLAST R200B25P
- Onan BASE BOARD(PCC-2100)
- Kana Electromechs BFC-10RLY-SNBR
- Bruker Axs C79298
- Agilent Card, analog and power PCA
- Pelton Compnay. Card, SHOT PRO II
- Eaton CHARGER 4A55505H01
- Ador Powertron Controller esp precicon-iii
- Honeywell CPU2-640PCA
- Beckhoff CX5130-0125/4GB
- SEW-Eurodrive D-76646 MDX60A0055-5A3-4-00
- Heinzmann DC161-
- Heinzmann DC161-04-DF
- Eaton DE-1 34016FN-N20N
- Carlo Gavazzi DPB01CM48
- Troy Entereprise DRIVER TR514-2
- KEBA E-16-DIGOUT-PLUS D1456D
- Cybelec E-SAC-CYB2004/E
- Corpoplast EC 610.441.31 50383183-170963
- Spectro EK 0606
- Eta Plus ELC F6-400-75
- Eta Plus ELC N10-400-80
- Bucher Emhart Glass EP-LIS-CONSOLE-DSP-27
- Emerson EP206-P00-ENR0
- Flakt Epic ESP controller
- Ador Powertron Esp controller precicon-iii
- Yokogawa ETC 619080 S1034
- ebm-papst fan3-380-480VAC
- Mitsubishi Electric FR-D740-050-E16
- Fuji Electric FRN0012E2S-4GBX
- Schenck Process FRS 0052 F217693.01
- Schenck Process FRSV004
- AEG-Elotherm GSQ1
- ebm-papst K3G280-AU06-B8
- Fisher-rosemount Systems L16165-03
- Emerson M700
- Spectro MACHINE PC-0090
- Atlas Copco MANAGER PAM-P1N-H8F-AP-P V10800
- Eae Ewert Ahrensburg Electronic MCGR 2 controller
- Sigmatek MDP 101-1
- SEW-Eurodrive MM05C-503-00
- DEIF PCM4-3
- Alter PM 250
- Scitex PWB 188A085908
- Rtelligent R86
- Bonfiglioli SA 401-15
- Shihlin SC3-043-3-7K
- Komori SDUC2-E AAX78100 AAXDE00130
- Tata Liebert SICE 0210231V-B
- Rittal SK 3187930
- Leroy-Somer SP1404
- Scitex Spinner driver card
- Trumpf SW V5.3
- Shinkawa SYSTEM VM-15K1-02100
- Delta Electronics TDN004E1100WM0
- Altronic TEM-ZS1 1229 8101KM
- Fluke Transconductance amplifier 52120A
- Schaefer TY-EDT-K681
- Positec TYPE:WS5-5 28100
- Eae Ewert Ahrensburg Electronic TYR30C
- Lam Technologies USD50606
- Vaasa Electronics VAMP 210-015072
- GE Electronics VAT200
- Toshiba VFA3N-8075PY-A70B
- Mitsubishi Electric VFD A800 FR-A820-00770-1-N6
- Toshiba VFS11-2007PL-WN(RS)
- Positec WDM3-004 1801
Don't see your model?
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