6 Troubleshooting
- 52 -
Is host controller working?
RS485 wirings correct?
Communication parameters are set properly?
Check host wirings
Check wirings
Set parameter
properly
RS485 fault
No
No
No
Yes
Yes
Yes
Seek for support
Motor parameters set correctly?
Auto tuning overtime?
Set parameters
correctly
Check the drive to
motor connection
Auto tuning fault
No
Yes
Yes
Speed sensor matched with PG card?
Speed sensor wiring correct?
Speed sensor installed correctly?
Chose right speed
sensor
Fix the wirings
Reinstall the sensor
Auto tuning speed feedback fault
No
Yes
No
Is it normal after replacing PG card
PG card fault
Yes
Yes
No
Yes
Seek for support