Causes And Corrective Actions - Delta ASDA-A3 Series User Manual

ASDA-A3

13.2 Causes and corrective actions

AL001 Overcurrent
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
AL002 Overvoltage
Trigger condition
and cause
Checking method
and corrective action
Condition: main circuit current is over 1.5 times of the maximum instantaneous
current of the servo drive.
Cause:
Motor has a short-circuit or fault to ground (frame).
1.
Motor wiring is wrong.
2.
IGBT is abnormal.
3.
Parameter setting is wrong.
4.
Control command setting is wrong.
5.
Check the connection between the motor and servo drive and make sure that
1.
the wire is not short-circuited. Do not expose the metal part of the wiring.
Check if you have followed the wiring sequence of the motor and servo drive
as described in this manual.
If the temperature of the heat sink is abnormal, send your servo drive back to
2.
the distributor or contact Delta. Check if the setting value is much greater than
the default. It is suggested that you reset the servo drive to the factory default
settings and then modify the settings one by one.
Check if the control input command changes greatly. If so, modify the rate of
3.
change in the command or enable the filter function.
DI.ARST
Condition: main circuit voltage exceeds the rated value.
Cause:
The input voltage of the main circuit is higher than the rated voltage.
1.
Wrong power input (wrong power system).
2.
Malfunction of the servo drive hardware.
3.
Wrong regenerative resistor or the external regenerative resistor is not
4.
connected.
Use a voltmeter to check if the input voltage of the main circuit is within the
1.
rated range (refer to Appendix A Specifications). If not, use the right voltage
source or connect the regulator in series. Use a voltmeter to check if the
power system complies with the specifications. If not, use the right voltage
source or connect the transformer in series.
Troubleshooting
13
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