5-1 Special Display List 5Maintenance Operations 5-1 Special Display List Error Code List 5 Maintenance Operations 5-1 Name Description Display on Digital Operator Overcurrent trip If the motor is restrained or rapidly accelerated or decelerated, a large current flows through the Inverter, which may result in breakage. To avoid this, an overcurrent protection circuit works to shut off the Inverter output. Constant speed ek k0k1 Deceleration ek k0k2 Acceleration ek k0k3 Others ek k0k4 Overload trip *1 If an Inverter output current is detected and the motor is overloaded, an electronic thermal inside the Inverter works to shut off the Inverter output.
ek k0k5 Braking resistor overload trip If the usage rate of the braking resistor is exceeded, this function detects overvoltage through the operation stop of the control circuit and shuts off the Inverter output. ek k0k6 Overvoltage trip If the incoming voltage and regenerative energy from the motor are too high, a protection circuit works to shut off the Inverter output when the voltage on the converter exceeds the specified level. ek k0k7 EEPROM error *2 *3 Shuts off the output if an error occurs in the EEPROM built into the Inverter due to external noise and abnormal temperature rise.
ek k0k8 Undervoltage trip Shuts off the output if the incoming voltage drops below the specified level, causing the control circuit not to work properly during a momentary power interruption. ek k0k9 CPU error*6 Shuts off the output if the internal CPU has worked erroneously or abnormally. ek k1k1 ek k2k2 External trip If an error occurs in the external equipment or devices, the Inverter receives the signal, and the output is shut off. (Available with the external trip function selected) ek k1k2 USP trip *4 Appears if the Inverter is turned on with the RUN command being input.
(Available with the USP function selected) ek k1k3 Ground fault trip *5 Shuts off the output if a ground fault between the Inverter output unit and the motor is detected when turning on the power. ek k1k4 Incoming overvoltage trip Appears if the incoming voltage has remained high for 100 seconds while the Inverter output is stopped. ek k1k5