Hitachi WJ200 Drive Fault Codes:
| Fault Code and Meaning | Cause and Remedy |
|---|---|
| E01 Over-current event while at constant speed | Cause: The inverter output was short-circuited, or the motor shaft is locked or has a heavy load. These conditions cause excessive current for the inverter, so the inverter output is turned OFF. The dual-voltage motor is wired incorrectly. Remedy: Check motor wiring, check for locked shaft or heavy mechanical load. |
| E02 Over-current event during deceleration | Cause: Excessive current detected during deceleration. (Likely caused by short-circuit, locked shaft, or heavy load similar to E01). |
| E03 Over-current event during acceleration | Cause: Excessive current detected during acceleration. (Likely caused by short-circuit, locked shaft, or heavy load similar to E01). |
| E04 Over-current event during other conditions | Cause: Excessive current detected during conditions other than constant speed, accel, or decel. |
| E05 Overload protection | Cause: When a motor overload is detected by the electronic thermal function, the inverter trips and turns OFF its output. |
| E06 Braking resistor overload protection | Cause: When the BRD operation rate exceeds the setting of “b090”, this protective function shuts off the inverter output and displays the error code. |
| E07 Over-voltage protection | Cause: When the DC bus voltage exceeds a threshold, due to regenerative energy from the motor. |
| E08 EEPROM error | Cause: When the built-in EEPROM memory has problems due to noise or excessive temperature, the inverter trips and turns OFF its output to the motor. |
| E09 Under-voltage error | Cause: A decrease of internal DC bus voltage below a threshold results in a control circuit fault. This condition can also generate excessive motor heat or cause low torque. The inverter trips and turns OFF its output. |
| E10 Current detection error | Cause: If an error occurs in the internal current detection system, the inverter will shut off its output and display the error code. |
| E11 CPU error | Cause: A malfunction in the built-in CPU has occurred, so the inverter trips and turns OFF its output to the motor. |
| E12 External trip | Cause: A signal on an intelligent input terminal configured as EXT has occurred. The inverter trips and turns OFF the output to the motor. |
| E13 USP (Unattended Start Protection) | Cause: When the Unattended Start Protection (USP) is enabled, an error occurred when power is applied while a Run signal is present. The inverter trips and does not go into Run Mode until the error is cleared. |
| E14 Ground fault | Cause: The inverter is protected by the detection of ground faults between the inverter output and the motor upon during powerup tests. This feature protects the inverter, and does not protect humans. |
| E15 Input over-voltage | Cause: The inverter tests for input over-voltage after the inverter has been in Stop Mode for 100 seconds. If an over-voltage condition exists, the inverter enters a fault state. After the fault is cleared, the inverter can enter Run Mode again. |
| E21 Inverter thermal trip | Cause: When the inverter internal temperature is above the threshold, the thermal sensor in the inverter module detects the excessive temperature of the power devices and trips, turning the inverter output OFF. |
| E22 CPU communication error | Cause: When communication between two CPU fails, inverter trips and displays the error code. |
| E25 Main circuit error | Cause: The inverter will trip if the power supply establishment is not recognized because of a malfunction due to noise or damage to the main circuit element. |
| E30 Driver error | Cause: An internal inverter error has occurred at the safety protection circuit between the CPU and main driver unit. Excessive electrical noise may be the cause. The inverter has turned OFF the IGBT module output. |
| E35 Thermistor | Cause: When a thermistor is connected to terminals [5] and [L] and the inverter has sensed the temperature is too high, the inverter trips and turns OFF the output. |
| E36 Braking error | Cause: When “01” has been specified for the Brake Control Enable (b120), the inverter will trip if it cannot receive the braking confirmation signal within the Brake Wait Time for Confirmation (b124) after the output of the brake release signal. |
| E37 Safe Stop | Cause: Safe stop signal is given. |
| E38 Low-speed overload protection | Cause: If overload occurs during the motor operation at a very low speed, the inverter will detect the overload and shut off the inverter output. |
| E40 Operator connection | Cause: When the connection between inverter and operator keypad failed, inverter trips and displays the error code. |
| E41 Modbus communication error | Cause: When “trip” is selected (C076=00) as a behavior in case of communication error, inverter trips when timeout happens. |
| E43 EzSQ invalid instruction | Cause: The program stored in inverter memory has been destroyed, or the PRG terminal was turned on without a program downloaded to the inverter. |
| E44 EzSQ nesting count error | Cause: Subroutines, if-statement, or for-next loop are nested in more than eight layers. |
| E45 EzSQ instruction error | Cause: Inverter found the command which cannot be executed. |
| E50 to E59 EzSQ user trip (0 to 9) | Cause: When user–defined trip happens, inverter trips and displays the error code. |
| E60 Option error (DeviceNet Communications) | Cause: If the disconnection due to the Bus-Off signal or timeout occurs during the operation using DeviceNet commands, the inverter will shut off its output. (The inverter will trip according to the settings of “p45” and “P048”.) |
| E61 Option error (duplicated MACID) | Cause: If two or more devices having the same MAC ID are detected in the same network, the inverter will display the error code. |
| E62 Option error (External trip) | Cause: If the Force Fault/Trip bit of Attribute 17 in the Instance 1 of the Control Supervisory object is set to “1”, the inverter will shut off its output. |
| E63 to E68 Option error | Cause: The inverter detects errors in the option board mounted in the optional slot. For details, refer to the instruction manual for the mounted option board. |
| E69 Option error (inverter communication error) | Cause: If timeout occurs during the communication between the inverter and DeviceNet option board, the inverter will shut off its output. |
| E80 Encoder disconnection | Cause: If the encoder wiring is disconnected, an encoder connection error is detected, the encoder fails, or an encoder that does not support line driver output is used. |
| E81 Excessive speed | Cause: If the motor speed rises to “maximum frequency (A004) x over-speed error detection level (P026)” or more, the inverter will shut off its output. |
| E83 Positioning range error | Cause: If current position exceeds the position range (P072-P073), the inverter will shut off its output and display the error code. |
| [Rotating Pattern] Reset | Cause: RS input is ON or STOP/RESET key is pressed. |
| —- Undervoltage | Cause: If input voltage is under the allowed level, inverter shuts off output and wait with this indication. |
| 0000 Waiting to restart | Cause: This indication is displayed after tripping before restarting. |
| 0000 Restricted operation command | Cause: Commanded RUN direction is restricted in b035. |
| L HC Trip history initializing | Cause: Trip history is being initialized. |
| —- No data (Trip monitor) | Cause: No trip/warning data exists. |
| [Blinking] Communication error | Cause: Communication between inverter and digital operator fails. |
| — o Auto-tuning completed | Cause: Auto-tuning is completed properly. |
| — J Auto-tuning error | Cause: Auto-tuning fails. |
| Warning 001 Frequency upper limit conflict | Cause: Frequency upper limit (A061) > Max. Frequency (A004). |
| Warning 002 Frequency lower limit conflict | Cause: Frequency lower limit (A062) > Max. Frequency (A004). |
| Warning 005 Output Freq setting conflict | Cause: Output Frequency setting (F001) or Multi-speed freq. 0 (A020) > Max. Frequency (A004). |
| Warning 015 Output Freq setting conflict | Cause: Output Frequency setting (F001) or Multi-speed freq. 0 (A020) > Frequency upper limit (A061). |
| Warning 025 Frequency lower limit conflict | Cause: Frequency lower limit (A062) > Output Frequency setting (F001) or Multi-speed freq. 0 (A020). |
| Warning 031 Start frequency conflict | Cause: Start frequency (A082) > Frequency upper limit (A061). |
| Warning 032 Start frequency conflict | Cause: Start frequency (A082) > Frequency lower limit (A062). |
| Warning 035 Start frequency conflict | Cause: Start frequency (A082) > Output Frequency setting (F001) or Multi-speed freq. 0 (A020). |
| Warning 036 Start frequency conflict | Cause: Start frequency (A082) > Multi-speed freq. 1-15 (A021-A035). |
| Warning 037 Start frequency conflict | Cause: Start frequency (A082) > Jogging frequency (A038). |
| Warning 085 Jump frequency conflict | Cause: Output Frequency setting (F001) or Multi-speed freq. 0 (A020) = Jump frequency (A063-A068). |
| Warning 086 Jump frequency conflict | Cause: Multi-speed freq. 1-15 (A021-A035) matches Jump frequency range. |
| Warning 091 Free setting V/f freq 7 conflict | Cause: Free setting V/f frequency 7 > Frequency upper limit (A061). |
| Warning 092 Free setting V/f freq 7 conflict | Cause: Free setting V/f frequency 7 > Frequency lower limit (A062). |
| Warning 095 Free setting V/f freq 7 conflict | Cause: Free setting V/f frequency 7 > Output Frequency setting (F001) or Multi-speed freq. 0 (A020). |
| Warning 201 Freq upper limit (A261) conflict | Cause: Frequency upper limit (A261) > Max. Frequency (A204). |
| Warning 202 Freq lower limit (A262) conflict | Cause: Frequency lower limit (A262) > Max. Frequency (A204). |
| Warning 205 Output Freq setting conflict | Cause: Output Frequency setting (F001) or Multi-speed freq. 0 (A220) > Max. Frequency (A204). |
| Warning 215 Output Freq setting conflict | Cause: Output Frequency setting (F001) or Multi-speed freq. 0 (A220) > Frequency upper limit (A261). |
| Warning 225 Freq lower limit (A262) conflict | Cause: Frequency lower limit (A262) > Output Frequency setting (F001) or Multi-speed freq. 0 (A220). |
| Warning 231 Start frequency (A082) conflict | Cause: Start frequency (A082) > Frequency upper limit (A261). |
| Warning 232 Start frequency (A082) conflict | Cause: Start frequency (A082) > Frequency lower limit (A262). |
| Warning 235 Start frequency (A082) conflict | Cause: Start frequency (A082) > Output Frequency setting (F001) or Multi-speed freq. 0 (A220). |
| Warning 285 Jump frequency conflict | Cause: Output Frequency setting (F001) or Multi-speed freq. 0 (A220) = Jump frequency. |
| Warning 291 Free setting V/f freq 7 conflict | Cause: Free setting V/f frequency 7 > Frequency upper limit (A261). |
| Warning 292 Free setting V/f freq 7 conflict | Cause: Free setting V/f frequency 7 > Frequency lower limit (A262). |
| Warning 295 Free setting V/f freq 7 conflict | Cause: Free setting V/f frequency 7 > Output Frequency setting (F001) or Multi-speed freq. 0 (A220). |