Softstart fault power supply unit

Hva betyr F2816 ?

During the soft start process, which involves loading the DC bus capacitance, the DC bus voltage curve is monitored. Significant deviations from the expected curve suggest a defect in the power section of the HMV01 supply unit. This fault indicates a problem specifically during the initial power-up sequence.

• Short circuit in DC bus.
• Load on DC bus (e.g., external braking resistor incorrectly connected).
• Insulation error in DC bus wiring or within the device/other connected devices.
• Final DC bus voltage not reached within a maximum time.
• Inadmissible voltage fluctuations or drop in supply mains during soft start.
• Device defective.

Klikk på steg for å spore fremgangen.

1. 1

   Check DC bus wiring for short circuits and remove any found.

2. 2

   Check DC bus wiring for load; verify correct connection of any external braking resistor.

3. 3

   Check DC bus wiring for insulation errors; if wiring is correct, systematically remove connected devices from the drive system step by step to identify the defective device.

4. 4

   Check for defects at loads externally connected to the DC bus.

5. 5

   Check mains voltage for inadmissibly dropped values during soft start.

6. 6

   Replace the device.