User manual

Chapter 10 Troubleshooting ASDA-A User Manual
4th Edition 2005/11/30, HE03 © DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
10-2
10-2 Potential Cause and Corrective Actions
: Overcurrent
Potential Cause Checking Method Corrective Actions
Short-circuit at drive
output
1.Check the wiring connections between
drive and motor.
2.Check if the wire is short-circuited.
Repair the short-circuited and avoid
metal conductor being exposed.
Motor wiring error Check if the wiring steps are all correct
when connecting motor to drive.
Follow the wiring steps in the user
manual to reconnect wiring.
IGBT error Heat sink overheated Return to the distributor or
manufacturer.
Control parameter setting
error
Check if the setting value exceeds the
factory default setting.
Set the setting back to factory default
setting and then reset and adjust the
parameter setting again.
Control command setting
error
Check if the control input command is
unstable (fluctuate too much).
1. Ensure that input command
frequency is stable (not fluctuate too
much).
2. Activate filter function.
: Overvoltage
Potential Cause Checking Method Corrective Actions
The main circuit voltage
has exceeded its
maximum allowable
value.
Use voltmeter to check whether the input
voltage falls within the rated input
voltage.
Use correct power supply or serial
stabilizator.
Input power error
(Incorrect power input)
Use voltmeter to check whether the input
voltage is within the specified limit.
Use correct power supply or serial
stabilizator.
: Undervoltage
Potential Cause Checking Method Corrective Actions
The main circuit voltage
is below its minimum
specified value.
Check whether the wiring of main circuit
input voltage is normal.
Reconfirm voltage wiring.
No input voltage at main
circuit.
Use voltmeter to check whether input
voltage at main circuit is normal.
Reconfirm power switch.
Input power error
(Incorrect power input)
Use voltmeter to check whether the input
voltage is within the specified limit.
Use correct power supply or serial
stabilizator.