6020: Control supply: Undervoltage

Info:
Data type:

Description:
The Control supply voltage has dropped below the minimum permissible limit (see ACOPOS user's manual).
See also error number 4005.

Reaction:
See error number 6021.

Cause/Remedy:
Supply voltage via DC bus power supply:
VAC supply: Disturbance (wire breakage, control, power failure, dip in power, etc)

Voltage supply via an external power supply:
Control supply: Operation outside the specification (see ACOPOS user's manual)
Control supply: Disturbance (cable breakage, control, power supply overload, power supply failure, etc)
ACOPOS hardware defect.