Tag: vfd
All the articles with the tag "vfd".
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Danfoss FC302 Alarm 32 - Causes & Fix
Alarm 32 on the Danfoss FC302 VFD means motor phase W is missing. Check wiring and connections on the W output phase first.
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Danfoss FC302 VFD Alarm 29 - Causes & Fix
Alarm 29 means heatsink over-temperature. Most common fix: clean blocked air vents, replace failed cooling fans, or clear dust from fins.
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Danfoss FC302 Alarm 31 - Causes & Fix
Alarm 31 means motor phase V missing. Most often a loose wire or bad connection on phase V between drive and motor. Check wiring.
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Siemens G120 F01625 - Causes & Fix
F01625 means a sign-of-life error in safety data on your G120 drive. Most often caused by EMC interference or wiring issues.
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Siemens G120 F01250 Fault - Causes & Fix
F01250 is not a verified Siemens G120 fault code. Confirm the exact code on your drive display, then consult the fault list or call support.
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ABB ACS580 A2B3 Fault - Causes & Fix
A2B3 means earth leakage detected. The drive found unbalanced current caused by an earth fault in the motor or motor cable.
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Danfoss FC302 Alarm 34 - Causes & Fix
Danfoss FC302 Alarm 34 means fieldbus communication fault. Learn causes, diagnostic steps, and how to fix this VLT drive error.
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Danfoss FC302 ALARM 22 - Causes & Fix
ALARM 22 on a Danfoss FC302 means the hoist mechanical brake did not release or the drive missed torque reference before timeout.
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Danfoss FC302 Alarm 17 - Causes & Fix
Alarm 17 on Danfoss FC302 means standard bus timeout or control word timeout. Learn the 6 causes and 7 repair steps to restore communication.
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Siemens Micromaster F0022 - Causes & Fix
Siemens Micromaster F0022 (hardware monitoring active) signals a power-stack fault. Fix by reseating I/O board, checking motor leads, and inspecting for earth faults.
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Siemens G120 A05006 - IGBT Overtemperature Warning & Fix
Siemens G120 A05006 signals IGBT junction temperature rise. Learn the real causes, diagnostic steps, and cooling fixes.
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Siemens G120 A01028 - Causes & Fix
Siemens G120 A01028 is a configuration error alarm caused by parameter and hardware mismatch. Learn causes, diagnostic steps, and parts.
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ABB ACS550 AI1 LOSS - Causes & Fix
ABB ACS550 AI1 LOSS means analog input 1 has fallen below the configured minimum or the signal is lost. Fix wiring, source, or parameters.
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ABB ACS580 FA81 Fault - Safe Torque Off 1 Active
FA81 on ABB ACS580 means STO circuit 1 is open. Learn what breaks the safety loop, how to diagnose wiring and contacts, and restore drive operation.
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ABB ACS580 A7CE Fault Code - Causes & Fix
ABB ACS580 A7CE means embedded fieldbus (EFB) communication loss. Learn common causes, step-by-step diagnostics, and fixes.
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ABB ACS580 A0 Fault Code - Causes & Fix
ABB ACS580 A0 is likely a misread of A5A0 or 5091, meaning Safe Torque Off is active. Learn causes, diagnosis, and reset steps.
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ABB ACS580 Fault 2310 — Overcurrent Fix
ABB ACS580 fault 2310 (Overcurrent) means the drive's output current exceeded the internal hardware overcurrent trip point — typically about 3.5× the...
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ABB ACS580 Fault 3220 — DC Undervoltage Fix
ABB ACS580 fault 3220 DC Link Undervoltage means the intermediate DC bus dropped below approximately 320 VDC on a 380–480V drive (185 VDC on a 200–240V...
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ABB ACS580 Fault 3210 — DC Overvoltage Fix
ABB ACS580 fault 3210 DC Link Overvoltage means the intermediate DC bus exceeded 820 VDC on a 380–480V drive (or 1100 VDC on a 525–690V drive) and the...
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Allen-Bradley PowerFlex 753/755 Control Sync Fault Fix
On PowerFlex 753 and 755 drives, the Control Sync Fault (fault code F70, depending on firmware version sometimes paired with F71 Drive OL Lvl 1 or F72 Drive...
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Allen-Bradley PowerFlex 755 Aux Input Fault Fix
PowerFlex 755 Aux Input Fault (F2) means a digital input on the drive's I/O — one that has been configured as the auxiliary fault input — went to its...
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Allen-Bradley PowerFlex 755 Power Loss Fault Fix
PowerFlex 755 Power Loss Fault (F3 Power Loss, sometimes paired with F2 Aux Power Loss in the same event) means the drive detected loss of one or more input...
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Danfoss FC-302 Alarm 12 — Overcurrent Fix
Danfoss FC-302 Alarm 12 (Torque Limit) means the drive's output current has been at the torque-limit setting (parameter 4-16 Motor Mode Torque Limit,...
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Danfoss FC-302 Alarm 13 — DC Link Overvoltage Fix
Danfoss FC-302 Alarm 13 (Over Voltage) means the DC link voltage exceeded the trip threshold — approximately 820 VDC on a 380–500V drive (parameter 14-23...