251
The driver is restarted with a
rotating motor
Start after setting as DC braking, or
rotational speed tracking start
Special potential energy load
Connect suitable braking resistor or braking
unit
E-05
Over voltage in Dec
process
Too short Dec time (including
tuning process)
Prolong the Dec time
The load inertia is too high
Connect suitable braking resistor or braking
unit
Abnormal of supply voltage
Check the power supply
E-06
Over voltage in
constant-speed
operating
Abnormal of supply voltage
Check the power supply
Special potential energy load
Connect suitable braking resistor or braking
unit
E-07
Bus undervoltage
Abnormal of supply voltage or
disconnecting of contactor (relay)
Check supply voltage or seek help from
manufacturer
E-08
Motor overload
Improper setting of V/F curve or
torque boost
Adjust V/F curve and torque boost value
Low network voltage
Check network voltage
Motor blocked or load sudden
change
Check load
Incorrect setting of motor
overload protection factor
Correct the setting