Chapter 9 Troubleshooting
ASDA-B2
9-4
Revision May, 2018
9.2 Causes and Corrective Actions
Alarm Display
AL001:
Over current
Causes
Checking Method
Corrective Actions
The drive output is
short-circuit
Check if the wiring between the motor
and the drive is correct and see if the
wire is short-circuited.
Eliminate short-circuit and
avoid metal conductor being
exposed.
The motor wiring is
in error.
Check if the wiring steps are correct
when connecting the motor to the drive.
Rewiring by following the
wiring description from the
user manual.
IGBT is abnormal
The temperature of the heat sink is
abnormal
Send the drive back to the
distributors or contact Delta
The control
parameter setting is
in error.
Check if the setting value exceeds the
default setting
Setting back to the default
setting and then gradually
adjust the value.
Unreasonable
command
Check if the command doing
reasonable acceleration time.
Less steep command used or
filter applying to smooth
command.
AL002:
Over voltage
Causes
Checking Method
Corrective Actions
The input voltage of
the main circuit is
higher than the
rated allowable
voltage.
Use the voltmeter to see if the input
voltage of the main circuit is within the
rated allowable voltage value. (please
refer to Chapter 10.1)
Apply to the correct power
supply or serial voltage
regulator.
Wrong power input
(incorrect power
system)
Use the voltmeter to see if the power
system matches the specification.
Apply to the correct power
supply or serial adaptor.
The hardware of
the servo drive is
damaged.
Use the voltmeter to see if the input
voltage of the main circuit is within the
rated allowable voltage value but still
shows the error.
Send the drive back to the
distributors or contact Delta.
