Danfoss VACON 100 FLOW Series Application Manual page 296

VACON® 100 FLOW
Application Guide
Troubleshooting
• Check the loading.
• Check the motor.
• Check the cables and connections.
• Make an identification run.
• Set the acceleration time longer (P3.4.1.2 and P3.4.2.2).
12.3.3 Fault Code 2, ID 10 - Overvoltage (Hardware Fault)
Cause
The DC link voltage is higher than the limits.
• too short a deceleration time
• high overvoltage spikes in the supply
Troubleshooting
• Set the deceleration time longer (P3.4.1.3 and P3.4.2.3).
• Activate the overvoltage controller.
• Check the input voltage.
12.3.4 Fault Code 2, ID 11 - Overvoltage (Software Fault)
Cause
The DC link voltage is higher than the limits.
• too short a deceleration time
• high overvoltage spikes in the supply
Troubleshooting
• Set the deceleration time longer (P3.4.1.3 and P3.4.2.3).
• Activate the overvoltage controller.
• Check the input voltage.
12.3.5 Fault Code 3, ID 20 - Earth Fault (Hardware Fault)
Cause
The measurement of current tells that the sum of the motor phase current is not zero.
• an insulation malfunction in the cables or the motor
• a filter (dU/dt, sine) malfunction
Troubleshooting
• Check the motor cables and the motor.
• Check the filters.
12.3.6 Fault Code 3, ID 21 - Earth fault (Software Fault)
Cause
The measurement of current tells that the sum of the motor phase current is not zero.
• an insulation malfunction in the cables or the motor
• a filter (dU/dt, sine) malfunction
Troubleshooting
• Check the motor cables and the motor.
• Check the filters.
296 | Danfoss A/S © 2023.08
Fault Tracing
AB298035655957en-000201 / DPD01083