Potential Cause And Corrective Actions; When Servo Off, But The Power Is On - Delta Electronics ASDA-B Series User Manual

10.2 Potential Cause and Corrective Actions

Servo Drive Fault Messages
ALE 1 / ALE : Overcurrent

When SERVO OFF, but the power is on:

Potential Cause
Short-circuit at drive
output (U, V, W).
When SERVO ON and the cable connected to U, V, W terminal is removed:
Potential Cause
Motor wiring error.
When SERVO ON and the cable connected to U, V, W terminal is not removed or the servo motor is
running:
Potential Cause
Short-circuit at drive
output (U, V, W).
Motor wiring error.
IGBT error or servo
hardware is damaged.
ALE 2 / ALE : Overvoltage
When SERVO OFF, but the power is on:
When SERVO ON:
Potential Cause
The main circuit voltage
has exceeded its
maximum allowable
value.
Power input error.
(Incorrect power input)
Servo drive hardware
may be damaged.
Revision January 2009
Checking Method
1. Check the wiring connections between
drive and motor.
2. Check if the wire is short-circuited.
Checking Method
Check if the wiring steps are all correct when
connecting motor to drive.
Checking Method
1. Check the wiring connections between
drive and motor.
2. Check if the wire is short-circuited.
Check if the wiring steps are all correct when
connecting motor to drive.
Heat sink overheated.
Checking Method
Use voltmeter to check whether the input
voltage falls within the rated input voltage. (For
voltage specification, please refer to section
11.1 in Chapter 11).
Use voltmeter to check whether the input
voltage is within the specified limit.
The servo drive hardware may be damaged
after the users have used voltmeter to check
the input voltage falls within the rated input
voltage.
Chapter 10 Troubleshooting|ASDA-B Series
Corrective Actions
Repair the short-circuited and
avoid metal conductor being
exposed.
Corrective Actions
Follow the wiring steps in the user
manual to reconnect wiring.
Corrective Actions
Repair the short-circuited and
avoid metal conductor being
exposed.
Follow the wiring steps in the user
manual to reconnect wiring.
Please contact your distributor for
assistance or contact with Delta.
Corrective Actions
Use correct power supply or
stabilizing power.
Use correct power supply or
stabilizing power.
Please contact your distributor for
assistance or contact with Delta.
10-3