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6. ERROR DESCRIPTIONS
Communication Error
If the communication error ("ER ---") appears, make sure
that the plug has good electrical contact with the current.
Reset the system by unplugging the equipment from
the power supply, then wait at least 60 seconds before
reconnecting. If the error continues, contact your technical
service.
Operation Errors
When the controller is not working, an error code will be
shown on the controller display. E.g. "Er: OV". Press the
START/STOP button to restore the controller.
The common error codes are the following:
Error
Description
Overcurrent: driver current
OC
output exceeds the threshold
(200% of rated current).
Overvoltage: the main circuit
OV
DC voltage exceeds the
threshold.
Under-voltage: the main
UV
electric current is too low.
1.1kW Overheating:
OH
the motor heat sink is
overheated.
Table C.
Common Errors
16
CONTROLLED COPY approved for factory use on 4/16/2020. RAYPAK PROPRIETARY AND CONFIDENTIAL INFORMATION . Approva
Reason
Driver output failure
Driver IPM module damaged
Exceeding power supply
maximum
Power supply voltage
exceeds the control settings
Ambient temperature is too
high
Supply voltage fluctuation is
too large
Ambient temperature is too
high
Motor cooing fan does not
work
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