Inovance IS 300 Series - Page 48

IS300 Series Servo Drive User Manual Troubleshooting
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■ Err07 (Over-voltage at Constant Speed)
Err07
Check whether the servo drive
input voltage is too high .
Check whether there is an external force to
drive the motor to run during acceleration .
No
No
Contact the agent or our company .
Adjust the input voltage to
normal range .
Cancel the external force or
install a braking resistor .
Yes
Yes
■ Err08 (Reserved)
■ Err09 (Undervoltage)
Err09
Check whether instantaneous
power failure occurs .
Check whether the servo drive input
voltage is in the allowable range .
Check whether DC bus voltage is normal .
No
Yes
No
Reset the fault .
Adjust the input voltage to
normal range.
Yes
No
Check whether rectifier bridge and
buffer resistor are normal .
Yes
No
Replace broken rectifier
bridge or buffer resistor .
Check whether drive board is normal .
Replace the drive board .
Check whether main control board is normal .
Replace the main control board .
Yes
No
No
Yes
Contact the agent
or our company