Potential Cause And Corrective Actions - Delta ASD-B2-0121-B User Manual

10.2 Potential Cause and Corrective Actions

Servo Drive Fault Messages
: Overcurrent
Potential Cause
Short-circuit at drive
output (U, V, W)
Motor wiring error
IGBT error
Control parameter
setting error
Control command
setting error
: Overvoltage
Potential Cause
The main circuit
voltage has
exceeded its
maximum allowable
value.
Input power error
(Incorrect power
input)
: Undervoltage
Potential Cause
The main circuit
voltage is below its
minimum specified
value.
No input voltage at
main circuit.
Input power error
(Incorrect power
input)
Revision June 2010
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
Check if the setting value exceeds the
factory default setting.
Check if the control input command is
unstable (too much fluctuation).
Checking Method
Use voltmeter to check whether the input
voltage falls within the rated input
voltage.
Use voltmeter to check whether the input
voltage is within the specified limit.
Checking Method
Check whether the wiring of main circuit
input voltage is normal.
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.
Chapter 10 Troubleshooting
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.
Set the setting back to factory
default setting and then reset
and adjust the parameter
setting again.
1. Ensure that input command
frequency is stable (too
much fluctuation).
2. Activate filter function.
Corrective Actions
Use correct power supply or
stabilizing power.
Use correct power supply or
stabilizing power.
Corrective Actions
Reconfirm voltage wiring.
Reconfirm power switch.
Use correct power supply or
serial stabilizing power.
10-3