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 breakdown. 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 If an Inverter output current is detected and the motor is overloaded, an electronic thermal inside the Inverter operates to shut off the Inverter output.
•After a trip occurs, normal operation is restored in 10 seconds by resetting the Inverter. ek_k0k5 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 Shuts off the output if an error occurs in the EEPROM built into the Inverter due to external noise and abnormal temperature rise. •Check the set data again if the ek_k0k8 error occurs. •If the power is shut off during data initialization, an EEPROM error ek_k0k8 may occur when the power is next turned on.
Shut off the power after completing data initialization. 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 Shuts off the output if the internal CPU has malfunctioned. •If the multi-function output terminal (relay terminal) is set to 05 (alarm), the signal may not be output during the CPU error ek_k1k1 . In this case, no data is stored in the trip monitor. •The same thing could happen if AL (05) is allocated to the relay output terminal. Again, no data is stored.
ek_k1k1 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 Appears if the Inverter is turned on with the RUN command being input. (Available with the USP function selected) •If an undervoltage trip ek_k0k9 occurs with the USP terminal turned ON, a USP trip ek_k1k3 occurs after a trip reset. Reset again to release the trip. ek_k1k3