E1 Series Servo Drive User Manual Troubleshooting And Maintenance
13-12 HIWIN MIKROSYSTEM CORP.
Alarm Number And
Alarm Name
Cause Confirmation Method Corrective Action
AL.870
Encoder overheating
The encoder overheats
because the motor
overheats.
N/A
(1) Re-calculate and adjust the
load and operating
condition. Or select a new
motor.
(2) Improve ambient
AL.880
Incremental encoder
signal error
incremental encoder is
abnormal or the encoder
Check if the signal of the
linear encoder is normal
and the encoder cable is
Replace the linear encoder or
encoder cable.
AL.890
Excellent Smart
Cube
(ESC)-incremental
encoder
disconnection
input of Excellent Smart
Cube (ESC) is abnormal or
the signal is not received.
Check if the encoder cable
is correctly connected or the
connection is poor.
Reconnect the encoder cable.
Encoder malfunction N/A
Power on again. If the alarm
occurs again, it could be motor
malfunction, please replace
Excellent Smart Cube
(ESC) malfunction
N/A
Power on again. If the alarm
occurs again, it could be ESC
malfunction, please replace
First set of encoder -
Excellent Smart
Cube (ESC) signal
The first set of encoder
signal is abnormal or not
received by Excellent Smart
Cube (ESC).
Check if the encoder cable
is correctly connected or the
connection is poor.
Reconnect the encoder cable.
AL.8b0
First set of encoder -
encoder signal error
First set of encoder
malfunctions.
N/A
Power on again. If the alarm
occurs again, it could be motor
malfunction, please replace
Second set of
encoder - Excellent
Smart Cube (ESC)
The second set of encoder
signal is abnormal or not
received by Excellent Smart
Cube (ESC).
Check if the encoder cable
is correctly connected or the
connection is poor.
Reconnect the encoder cable.
Second set of
encoder - encoder
Second set of encoder
malfunctions.
N/A
Power on again. If the alarm
occurs again, it could be motor
malfunction, please replace
AL.8E0
Digital encoder
disconnection
Digital encoder signal is not
received when the motor is
Check if the encoder cable
is correctly connected or the
Reconnect the encoder cable.
Encoder malfunction N/A
Power on again. If the alarm
occurs again, it could be motor
malfunction, please replace
Excellent Smart
Cube (ESC) internal
The internal program of
Excellent Smart Cube
(ESC) is abnormal.
N/A
Power on again. If the alarm
occurs again, it could be ESC
malfunction, please replace
AL.b10
Velocity command
A/D converter error
Input pins for velocity
command malfunction
N/A
Reset the alarm and restart
operation.
Servo drive malfunction N/A
Power on again. If the alarm
occurs again, it could be servo
drive malfunction, please
Reset the alarm and restart