Protective and Diagnostic Functions ● Error Code List Selection Features SYSDRIVE JX Series SYSDRIVE MX Series SYSDRIVE RX Series SYSDRIVE Option Overview of Inverter Selection Simple, Compact Inverters SYSDRIVE JX Series 21 Display on Digital Operator Name Description ek_k0k1 Overcurrent trip Constant speed If the motor is restrained, or rapidly accelerated or decelerated, a large current will flow through the Inverter, which will result in breakage. To avoid this, an overcurrent protection circuit works to shut off the Inverter output.
ek_k0k2 Deceleration ek_k0k3 Acceleration ek_k0k4 Others ek_k0k5 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_k0k7 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_k0k8 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. ek_k0k8 If the power is shut off during data initialization, an EEPROM error may occur when the power is next turned on. Shut off the power after completing data initialization. ek_k0k9 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_k1k1 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_k1k2 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_k1k3 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 set to ON, the trip, after released by resetting, becomes a USP trip ek_k1k3. Reset again to release the trip.
ek_k1k4 Ground fault trip Shuts off the output if a ground fault between the Inverter output unit and the motor is detected when turning on the power. The ground fault trip ek_k1k4 cannot be released with the reset input. Shut off the power and check the wiring. ek_k1k5 Incoming overvoltage trip Appears if the incoming voltage has remained high for 100 seconds while the Inverter output is stopped. ek_k2k1 Temperature error Shuts off the output if the temperature has risen in the main circuit due to malfunction of the cooling fan or other reason. ek_k3k0 Driver error Shuts off the output if overcurrent is detected in the main circuit.
ek_k3k5 Thermistor error While the thermistor input function is used, this detects the resistance of the external thermistor and shuts off the Inverter output. ek_k3k7 Emergency shutoff With the emergency shutoff selected (DIP switch on the control board SW8 = ON), this error appears when an emergency shutoff signal is input from input terminal 3. ek_k6k0 Communications error Occurs when the communication watchdog timer times out. ek_k0k9 ek_k1k3