Supply voltage – overload fault

What does F20.2 mean?

The current load on the 24 V standby supply voltage in the MOVIDRIVE® system is too high. This overcurrent causes the device's internal signal output to de-energize. Leaving this unresolved can lead to system instability, unexpected shutdowns, and potential damage to internal components from sustained overload.

• External 24VDC load connected to standby supply (e.g., X10/X11) exceeding the drive's specified current limit.
• Short circuit or ground fault in the external wiring connected to the drive's 24VDC output terminals.
• Malfunctioning external sensor or actuator drawing excessive current from the 24VDC supply.
• Internal fault within the drive's 24VDC power supply circuit due to component stress.

Click steps to track your progress.

1. 1

   Disconnect all external loads from the 24VDC output terminals (e.g., X10/X11) and measure the current draw from each device individually.

2. 2

   Measure the voltage at the 24VDC output terminals (e.g., X10/X11) with a multimeter to verify it is stable and within tolerance.

3. 3

   With all external loads disconnected, measure the current flowing from the 24VDC output using an ammeter to check for internal drive leakage.

4. 4

   Isolate sections of the 24VDC external wiring by disconnecting them segment by segment and re-applying power to identify short circuits or ground faults.

5. 5

   Refer to the drive manual to verify the maximum permissible 24VDC output current and ensure connected loads are within limits.