LNS GT 326-E, Instruction Manual, Page: 133 / 218

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9 TROUBLESHOOTING GUIDE
GT 326-E
9.4.2 Alarms cause and solutions
AL001 Overcurrent
Clearing Method Turn OFF the power supply and restart the servo drive.
or restart the servo drive.
Potential Cause Checking Method Corrective Actions
Short-circuit at drive
output (U, V, W)
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
Please contact your distributor for
assistance or contact with Delta.
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 (too much fluctuation).
1. Ensure that input command
frequency is stable (too much
fluctuation).
2. Activate filter function.
AL002 Overvoltage
Clearing Method Turn OFF the power supply and restart the servo drive.
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
stabilizing power.
Input power error
(Incorrect power
input)
Use voltmeter to check whether the
input voltage is within the specified limit.
Use correct power supply or
stabilizing power.