PowerFlex 525 troubleshooting answers
7 questions with answers cited from the manufacturer manuals.
- 0PowerFlex 525 F081 DSI Comm Loss: what to check first?
The F081 DSI Comm Loss fault on a PowerFlex 525 drive indicates an interruption in communication between the drive and its Modbus or DSI master device. This fault is a Type 2 fault, and its response is determined by para…
- 0PowerFlex 525 F033 Auto Rstrt Tries: what to check first?
Fault F033 on a PowerFlex 525 drive indicates that the drive attempted to reset a fault and resume operation for the configured number of attempts (A541 [Auto Rstrt Tries]) but failed. This is a Type 2 fault, meaning it …
- 0PowerFlex 525 F013 Ground Fault after washdown, what to check?
A PowerFlex 525 F013 Ground Fault indicates the drive detected a current path to earth ground at one or more of its output terminals. This fault can occur at start, during operation (especially after washdown or cable mo…
- 0PowerFlex 525 F012 HW OverCurrent instantly at start, what to check?
The F012 HW OverCurrent fault on a PowerFlex 525 drive indicates the output current exceeded the hardware limit. This is a Type 2 fault, meaning it won't clear with an auto-restart. An instant trip at start, especially w…
- 0PowerFlex 525 F007: motor overload trips after a few minutes, what to check?
The F007 Motor Overload fault on a PowerFlex 525 drive indicates that the drive's internal electronic motor overload protection (I²t, Class 10) has tripped. This occurs when the output current remains above the configure…
- 0PowerFlex 525 F005 OverVoltage on decel, what to check?
A PowerFlex 525 drive trips F005 (OverVoltage) when the DC bus voltage exceeds its maximum value. This often occurs during deceleration, especially with high-inertia or overhauling loads, or due to high line voltage. The…
- 0PowerFlex 525 F004 UnderVoltage when large loads start, what to check?
Fault F004 on a PowerFlex 525 indicates that the DC bus voltage has dropped below the drive's minimum threshold. This is a Type 1 fault, meaning it can be cleared by an auto-restart. Common causes include supply dips, lo…