Which products are affected?
8200vector / motec 0.25 kW ... 90 kW software version ≤ V2.4
How is the reaction?
The 8200 vector can be supplied by an external 24 V-voltage via the CAN-IO-RS function module. In this constellation the drive controller can remain sporadically in the low voltage stop.
When does the problem occur?
This status occurs under these conditions:
- Inverter is enabled, and
- auto DC brake is not active (C019 = 0) and
- the drive controller is in intermediate circuit voltage low voltage stop LV and
- the status TRIP is active
If under these conditions a TRIP reset is executed, no analog signal is read anymore.
Possible diagnostics?
In spite of applied mains voltage and correct intermediate circuit voltage level the message LU is shown.
Short-term measures / recommendations?
- Apply software version V3.0 of the base controller (the mains connection of the inverter during external supply via CAN-IO-RS is not set sporadically) or
- do not execute a TRIP-reset in case of low voltage or
- activate auto DC brake (set C019 > 0, default setting 0.1 Hz)
