User Manual Of EL7-EC** AC Servo
275
Error
code
Main Sub
Display: “
Er 153”
15
3
Content: Multiturn encoder error
Cause
Diagnosis
Solution
Initial use
Origin calibration not
performed
Perform origin positioning and multiturn
position initialization, calibrate the origin of
coordinate system.
Encoder without
multiturn absolute
function used
Verify if encoder has
multiturn absolute
function
1. Replace the motor with a multiturn
absolute encoder.
2. Set Pr0.15 = 0 to deactivate multiturn
absolute function.
Low battery power
Replace battery and
restart driver to clear
alarm
Replace battery
Battery has no power
or has been dismantled
Alarm not cleared
after replacing battery
and restart
Absolute position lost. Return to origin and
perform multiturn initialization, calibrate the
origin of coordinate system
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.
