Chapter 6: Troubleshooting
6.1.1 Non-resettable NO.1 fault
ES2 Series Servo User Manual Lite V1.0
Fault
number
Er_
1
2
3
4
6
7
8
9
11
12
13
14
15
16
Fault name
Cause of fault
Stop method
when fault
occurs
System parameter
exception
Product model
selection failure
Motor data
verification failure
Fault in parameter
storage
Program exception
Control
power
supply undervoltage
Short circuit to
ground failure
detected
Overcurrent fault
Encoder
disconnection
Encoder AB signal
abnormal
Abnormal data of servo internal
parameters
Invalid motor or drive model
Motor ROM data check error or no
data
1. parameter storage device failure
2. parameters read and write too
frequently
3. control power supply instability
4. drive failure
1. system parameter abnormal
2. drive internal failure
Control circuit power supply
undervoltage
1. drive or motor parameters are
incorrect;
2. UVW phase-to-phase short
circuit;
3. motor burned out;
4. motor is shorted to ground;
5. drive failure;
1 The drive or motor parameters are
incorrect;
2 UVW phase-to-phase short
circuit;
3 the motor burned out;
4 The motor is shorted to ground;
5 drive failure;
Encoder disconnection
Encoder AB signal is abnormal
No.1
No.1
No.1
No.1
No.1
No.1
NO.1
NO.1
No.1
No.1
Encoder
exception
check
Motor initial angle
detection abnormal
Motor out of control
Current sampling
fault
Encoder zero point check exception
Motor initial angle detection is
abnormal
1 Motor UVW phase sequence
setting error
2 UVW wiring error
3 Initial position or encoder
parameter setting error
Current sampling fault
No.1
No.1
No.1
No.1
Whether
the fault
can be
reset
No
No
No
No
No
No
No
No
No
No
No
No
No
No
6.1.2 Resettable NO.1 fault
Fault
number
Er_
20
21
Fault name
Overvoltage
Undervoltage
Cause of fault
Stop method
when fault
occurs
The main circuit DC voltage
abnormally high
No.1
Main circuit DC voltage low
No.1
Whether
the fault
can be
reset
Yes
Yes
36