Response of the new version: The response threshold of the earth-fault/short-circuit monitoring function has been slightly increased to avoid a premature response of the monitoring function.
Selecting a switching frequency of 4 kHz and a high capacitance per unit length ('long' motor cables) will now no longer lead to a response of the monitoring functions.
What happens? The earth-fault/short-circuit monitoring function responds although no earth fault or short circuit has occurred.
When does this behaviour occur?
- Long motor cables with a high capacitance per unit length, possibly, no 'low-capacitance' cables have been used and
- inverter switching frequency set to 4 kHz.
Which products are affected? - i700 servo inverter
Short-term measures:
Select a higher switching frequency for the inverter, e.g. 8 kHz.
