Elife UNIDRIVE M series, Reference Manual

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If these checks failed, you must:
1.
Check the correct connection between motor housing appropriate terminal
and driver negative terminal (
-
).
2.
Check electrical isolation between every phase and motor housing.
3.
Pass feedback cable as far as possible from power cables.
4.
Check the correct Resolver/SinCos installation within motor.
Overcurrent Alarm
DESCRIPTION
It happens whenever one of the modules of three current phases is
higher than a threshold.
UNIDRIVE BEHAVIOUR
UNIDRIVE stops motor rotation with emergency slope (disabling
power relay and three-phase bridge) and unlocks motor brake.
POSSIBLE TROUBLESHOOTING ISSUE
The possible actions that should be taken:
•
Check the proper functioning of the feedback system.
•
Check if the gain parameters for closed-loop current control are not too
high for your application (See Section 3.4.5).
If this error appears when your motor is in generator mode , the voltage
generated by your motor is higher than the battery voltage: Change your
battery system or decrease the Max motor speed value (See Section 3.4.2).
Emergency input Alarm
DESCRIPTION
It indicates that the emergency input is not supplied. It’s processed
only for PLC , EV , Standalone and for RS232 configuration .
UNIDRIVE BEHAVIOUR
UNIDRIVE stops motor rotation with emergency slope (disabling
power relay and three-phase bridge) and unlocks motor brake.
POSSIBLE TROUBLESHOOTING ISSUE
Check the
Emergency Input
( P
IN
3 ), then
reset alarms.
72
Chapter A
Troubleshooting: Alarm Messages