Lite-On Technology Corp.
Industrial Automation
200
Chapter 9
Warning Troubleshooting
9.1.
Drive Alarm List
Alarm
indication
Alarm name
Description for alarm activation
Indication
DO
Switching of
servo state
AL001
Overvoltage
It is activated when the voltage of main circuit
is above the specified value.
ALM
Servo Off
AL002
Overcurrent
It is activated when the instantaneous current
of the main circuit is above the current
tolerance level of IGBT hardware.
ALM
Servo Off
AL003
Error with motor
coupling
The drive does not match the corresponding
motor.
ALM
Servo Off
AL004
Regeneration error It is activated if any regeneration error occurs. ALM
Servo Off
AL005
Overload
It is activated when the output of the drive is
above the load curve.
ALM
Servo Off
AL006
Overspeed
It is activated when the motor speed is above
the normal speed.
ALM
Servo Off
AL007
Abnormality in the
pulse command
It is activated when the pulse command input
frequency is above the specified value.
ALM
Servo Off
AL008
Excessive location
error
It is activated when the value of location error
is above the setting value.
ALM
Servo Off
AL009
Abnormality in the
encoder
The communication error regarding the data of
the encoder occurs.
ALM
Servo Off
AL010
Abnormality in the
calibration
ALM
Servo Off
AL011
The IGBT is
overheated.
The IGBT of drive is overheated.
ALM
Servo Off
AL012
Abnormality in the
EEPROM
It is activated due to abnormality in the
memory access.
ALM
Servo Off
AL013
Abnormality in the
output signal of the
detector
ALM
Servo Off
AL014
Serial communication
error
ALM
Servo Off
AL015
Overheated
environment
The ambient temperature is too high.
ALM
Servo Off
AL016
Internal error in the
encoder
ALM
Servo Off
AL017
Error in the data
reliability of the
encoder
An abnormality occurs in the internal data of
the encoder three times in a row.
ALM
Servo Off
AL018
Overheated motor
The motor is overheated.
WRN
Servo On
AL019
Error in the CRC
communication
It is activated when an abnormality occurs in
RS-232/485 communication.
ALM
Servo Off
AL020
Timeout of the serial
communication
It is activated when a timeout occurs in RS-
232/485 communication.
ALM
Servo Off
AL021
Error in the motor
collision
ALM
Servo Off