Delta Electronics ASDA-B Series User Manual page 259

Chapter 10 Troubleshooting|ASDA-B Series
ALE 3 / ALE : Undervoltage
Potential Cause
The main circuit voltage
is below its minimum
specified value.
No input voltage at
main circuit.
Power input error.
(Incorrect power input)
Servo drive hardware is
damaged.
ALE 4 / ALE : Z Pulse shift
Potential Cause
Encoder is damage.
Encoder is loose.
ALE 5 / ALE : Regeneration error
When the power is on:
Potential Cause
Servo drive hardware is
damaged.
When the motor is running:
Potential Cause
Regenerative resistor is
not connected.
The transistor for
regeneration is
disabled.
Parameter setting is in
error.
Servo drive hardware is
damaged.
10-4
Checking Method
Check whether the wiring of main circuit input
voltage is correct.
Use voltmeter to check whether input voltage at
main circuit is normal.
Use voltmeter to check whether the input
voltage is within the specified limit.
The servo drive hardware is damaged after the
users have used voltmeter to check the input
voltage falls within the rated input voltage.
Checking Method
Check Encoder for the damage.
Examine the Encoder connector.
Checking Method
Please contact your distributor for assistance or contact with Delta.
Checking Method
Check the wiring connection of regenerative
resistor.
Check if the transistor for regeneration is short-
circuited.
Confirm the parameter setting and
specifications of regenerative resistor.
Please contact your distributor for assistance or contact with Delta.
Corrective Actions
Reconfirm voltage wiring. Correct
input wiring is needed.
Reconfirm power supply, including
switches.
Use correct power supply or
stabilizing power.
Please contact your distributor for
assistance or contact with Delta.
Corrective Actions
Repair or replace the motor.
Install the motor again.
Corrective Actions
Corrective Actions
Reconnect regenerative resistor.
Please contact your distributor for
assistance or contact with Delta.
Correctly reset parameter again.
Revision January 2009