Appendix
ES2 Series Servo User Manual Lite V1.0
Error
number
Er_
14
15
16
20
21
22
27
Error Name
Cause of Error
Motor initial angle
detection abnormal
Motor out of control
Motor initial angle detection abnormal
1 motor UVW phase sequence setting error
2 UVW wiring error
3 Initial position or encoder parameter setting
error
Current sampling fault
Current sampling fault
Overvoltage
Main circuit DC voltage is abnormally high
Undervoltage
Main circuit DC voltage low fault
Overspeed
DI terminal
setting fault
parameter
1 speed command exceeds the maximum
speed set value
2 UVW phase sequence error
3 speed response severely exceeded limit
4 drive failure
Different DI are assigned the same function
repeatedly;
Stop
method
when
error
occurs
No.1
No.1
No.1
No.1
No.1
No.1
No.1
Fault
reseta
ble
No
No
No
Yes
Yes
Yes
Yes
28
DO terminal parameter Different DO are assigned the same function
setting fault
repeatedly;
No.1
Yes
30
Reference position failure Reference position failure
No.1
Yes
43
Position deviation is too
large
In servo ON state, the position deviation
exceeds the position deviation fault value
(P09.09)
No.2
Yes
When the power input lack phase protection
selects parameter P09-00=0 (enable fault,
44
Main circuit input lack
phase
disable warning) or P09-00=1 (enable fault
and warning):
1 three-phase input line is wrongly connected
No.2
Yes
2 three-phase drive operates under single-
phase power
46
Drive overload
The load operation exceeds the inverse time
curve of the drive;
The UVW output may lack phase or phase
No.2
Yes
sequence connected incorrectly;
47
Motor overload
The load operation exceeds the inverse time
curve of the motor;
The UVW output may lack phase or phase
N0.2
Yes
sequence connected incorrectly;
49
Electronic gear setting Electronic gear ratio exceeds standard range
error
[0.001, 4000]
No.2
Yes
50
Heat sink/fan overheating
Servo unit heat sink/fan exceeds the set fault
value
No.2
Yes
Warning
code
EE_
81
82
83
86
Warning name
Warning reason
Drive overload warning
Motor overload warning
Changed parameters need
to be re-powered to take
effect
Forward
overtravel
warning
Failure when 80% of the drive overload fault value is reached
The warning before the motor is about to fail, the warning value is
determined by P09_05
Changed parameters that need to be re-powered
Forward overtravel switch Pot terminal is valid
72