Output grounding
CPU interference
E.GF
E.2
Replace cable
or motor
No
Yes
Yes
Yes
Current detect fault
E.3
Check the sensor and connect
is normal
Whether
Replace the
sensor or
connections
No
No
No
Yes
EEPROM read-write fault
E.4
Yes
86
Ask for technical support
Ask for technical support
Ask for technical support
Ask for technical support
Check the drive board is normalWhether
The main control
board is faulty
The main control
board is faulty
The main control
board is faulty
Whether it works normally after
replacing the main control board
Whether it works normally after
replacing the main control board
Whether it works normally after
replacing the main control board
Replace the
drive board
Replace the drive board
Check the output is short circuitedWhether
Chapter 8 Troubleshooting and Countermeasures
the