Chapter 7 Function for protection
61
Err-7
Abnormity of
drive stop
The input terminals of CCW,
CW drive stop are both broken
off.
① Check the connection and
power supply of input
terminals.
① Encoder connection is
wrong.
① Check the connection.
① Encoder is damaged. ① Change the motor.
① Encoder cable is inferior. ① Change the cable.
Err-9
Photoelectric
encoder signal
fault
① Encoder cable is so long
that the encoder voltage is
too low.
① Shorten the cable.
② Employ with multi-core
parallel power-up.
① Control power supply
voltage input is too low.
①Check the control power
supply.
Err-10
Control power
supply
undervoltage
① Internal connector
assembly of driver is
inferior.
② Switch power supply is
abnormal.
③ Chip is damaged.
① Change the driver.
② Check the connector
assembly.
③ Check the switch power
supply.
Occurring in switching
on control power
supply
① Circuit board is at fault ① Change the servo driver.
① Power-up voltage is low.
② Overheated.
① Check the driver.
② Power on again.
③ Change the driver.
① Driver U, V, W terminals are
short circuit.
① Check the connection.
① Earthing is not well done.
①Be grounded correctly.
① Motor insulation is
damaged.
① Change the motor.
Err-11 IPM module
fault
Occurring in motor
running
① It is interfered with.
① Add the circuit filter.
② Be far away from the
interference source.
Driver U, V, W terminals are
short circuit.
Check the connection.
Earthing is not well done. Be grounded correctly.
Motor insulation is damaged. Change the motor.
Err-12 Over-current
Driver is damaged. Change the driver.