User manual of EL8-EC***F AC Servo
316
Error
code
Main
Sub
Display:
“
Er 154
”
15
4
Content:
Encoder parameter settings error
Cause
Diagnosis
Solution
Absolute encoder mode
is incorrectly set.
Verify if encoder has multi-turn
absolute value function.
Modify absolute encoder mode
settings
Error
code
Main
Sub
Display:
“
Er 155
”
15
5
Content:
Encoder data overflow
Cause
Diagnosis
Solution
Encoder data overflow
Verify if encoder is not damaged Initialize multiturn data
Absolute value
applications, motor
rotates in one direction
Verify if encoder is not damaged
Adjust absolute value application
mode, set to turntable mode
Error
code
Main
Sub
Display:
“
Er 156
”
15
6
Content:
Encoder overheated
Cause
Diagnosis
Solution
The encoder
temperature is too high.
Verify if motor temperature is
too high
Reduce encoder temperature.
Error
code
Main
Sub
Display:
“
Er 157
”
15
7
Content:
Encoder counter error
Cause
Diagnosis
Solution
Encoder data overflow
Verify if encoder is not damaged Initialize multiturn data
Absolute value
applications, motor
rotates in one direction
Verify if encoder is not damaged
Adjust absolute value application
mode, set to turntable mode
Error
code
Main
Sub
Display:
“
Er 170
”
17
0
Content:
Encoder data error
Cause
Diagnosis
Solution
Communication
data abnormal
1. Verify if encoder power supply
voltage is DC5V
±
5% ;
2. Verify if encoder cable and shielded
layer is not damaged;
3. Verify if encoder cable is close to
high-powered power supply cable
1. Make sure encoder power supply
voltage is stable
2. Make sure encoder cable is not
damaged.
3. Make sure encoder cable shielded
layer is grounded to frame
4. Make sure encoder cable is away
from high-powered power supply
cable
Encoder damaged
/
Replace motor
Encoder measuring
circuit damaged
/
Replace driver
