Hitachi · VFD
WJ200 (also SJ200, Modbus RTU on RS-485) Modbus register map
Default configuration
- Protocol
- RS485
- Port
- 502
- Unit ID
- 1
- Addressing
- 0-based
- Byte order
- Big endian
- Word order
- High word first
- Baud rate
- 9600
- Parity
- None
- Data bits
- 8
- Stop bits
- 1
This device has an RS-485 interface. Reach it through a Modbus RTU-to-TCP gateway, configured with the factory serial settings above.
Register map
| Address | Count | Name | Type | Unit | Scale | Access |
|---|---|---|---|---|---|---|
| 1 | 1 | Operation command 1 = run, 0 = stop. Valid when the run command source A002 = 03 (Modbus). | Binary | - | 1 | RW |
| 2 | 1 | Rotation direction command 1 = reverse rotation, 0 = forward rotation. Valid when A002 = 03. | Binary | - | 1 | RW |
| 3 | 1 | External trip (EXT) 1 = trip. | Binary | - | 1 | RW |
| 4 | 1 | Trip reset (RS) 1 = reset the trip. | Binary | - | 1 | RW |
| 7 | 1 | Intelligent input terminal [1] 1 = ON, 0 = OFF, for intelligent input terminal 1. The physical terminal state has priority over this coil. | Binary | - | 1 | RW |
| 8 | 1 | Intelligent input terminal [2] 1 = ON, 0 = OFF, for intelligent input terminal 2. The physical terminal state has priority over this coil. | Binary | - | 1 | RW |
| 9 | 1 | Intelligent input terminal [3] 1 = ON, 0 = OFF, for intelligent input terminal 3. The physical terminal state has priority over this coil. | Binary | - | 1 | RW |
| 10 | 1 | Intelligent input terminal [4] 1 = ON, 0 = OFF, for intelligent input terminal 4. The physical terminal state has priority over this coil. | Binary | - | 1 | RW |
| 11 | 1 | Intelligent input terminal [5] 1 = ON, 0 = OFF, for intelligent input terminal 5. The physical terminal state has priority over this coil. | Binary | - | 1 | RW |
| 12 | 1 | Intelligent input terminal [6] 1 = ON, 0 = OFF, for intelligent input terminal 6. The physical terminal state has priority over this coil. | Binary | - | 1 | RW |
| 13 | 1 | Intelligent input terminal [7] 1 = ON, 0 = OFF, for intelligent input terminal 7. The physical terminal state has priority over this coil. | Binary | - | 1 | RW |
| 15 | 1 | Operation status 1 = run, 0 = stop; interlocked to monitor d003. | Binary | - | 1 | R |
| 16 | 1 | Rotation direction 1 = reverse rotation, 0 = forward rotation; interlocked to monitor d003. | Binary | - | 1 | R |
| 17 | 1 | Inverter ready 1 = ready, 0 = not ready. | Binary | - | 1 | R |
| 19 | 1 | RUN (running) The register table prints 1 = tripping, 0 = normal for this RUN item; quoted as printed. | Binary | - | 1 | R |
| 20 | 1 | FA1 (constant-speed reached) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 21 | 1 | FA2 (set frequency overreached) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 22 | 1 | OL (overload advance notice 1) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 23 | 1 | OD (output deviation for PID control) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 24 | 1 | AL (alarm signal) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 25 | 1 | FA3 (set frequency reached) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 26 | 1 | OTQ (over-torque) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 28 | 1 | UV (undervoltage) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 29 | 1 | TRQ (torque limited) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 30 | 1 | RNT (operation time over) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 31 | 1 | ONT (plug-in time over) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 32 | 1 | THM (thermal alarm signal) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 38 | 1 | BRK (brake release) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 39 | 1 | BER (brake error) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 40 | 1 | ZS (0 Hz detection signal) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 41 | 1 | DSE (speed deviation maximum) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 42 | 1 | POK (positioning completed) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 43 | 1 | FA4 (set frequency overreached 2) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 44 | 1 | FA5 (set frequency reached 2) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 45 | 1 | OL2 (overload advance notice 2) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 46 | 1 | Odc (analog O disconnection detection) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 47 | 1 | OIDc (analog OI disconnection detection) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 50 | 1 | FBV (PID feedback comparison) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 51 | 1 | NDc (communication train disconnection) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 52 | 1 | LOG1 (logical operation result 1) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 53 | 1 | LOG2 (logical operation result 2) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 54 | 1 | LOG3 (logical operation result 3) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 58 | 1 | WAC (capacitor life warning) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 59 | 1 | WAF (cooling-fan speed drop) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 60 | 1 | FR (starting contact signal) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 61 | 1 | OHF (heat sink overheat warning) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 62 | 1 | LOC (low-current indication signal) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 63 | 1 | M01 (general output 1) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 64 | 1 | M02 (general output 2) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 65 | 1 | M03 (general output 3) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 69 | 1 | IRDY (inverter ready) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 70 | 1 | FWR (forward rotation) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 71 | 1 | RVR (reverse rotation) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 72 | 1 | MJA (major failure) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 73 | 1 | Data writing in progress 1 = writing in progress, 0 = normal status. | Binary | - | 1 | R |
| 74 | 1 | CRC error 1 = error detected, 0 = no error. The flag is retained until an error reset command is given. | Binary | - | 1 | R |
| 75 | 1 | Overrun 1 = error detected, 0 = no error. | Binary | - | 1 | R |
| 76 | 1 | Framing error 1 = error detected, 0 = no error. | Binary | - | 1 | R |
| 77 | 1 | Parity error 1 = error detected, 0 = no error. | Binary | - | 1 | R |
| 78 | 1 | Sum check error 1 = error detected, 0 = no error. | Binary | - | 1 | R |
| 80 | 1 | WCO (window comparator O) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 81 | 1 | WCOI (window comparator OI) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 83 | 1 | OPDc (option disconnection) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
| 84 | 1 | FREF (FQ command source) 1 = operator, 0 = others. | Binary | - | 1 | R |
| 85 | 1 | REF (RUN command source) 1 = operator, 0 = others. | Binary | - | 1 | R |
| 86 | 1 | SETM (2nd motor selected) 1 = 2nd motor selected, 0 = 1st motor selected. | Binary | - | 1 | R |
| 88 | 1 | EDM (gate suppress monitor) 1 = ON, 0 = OFF. | Binary | - | 1 | R |
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Related guides
Notes
RS-485 device: reach it through a Modbus RTU-to-TCP gateway. The factory serial settings are C071 = 05 (9600 bps), C072 = 1 (slave address), C074 = 00 (no parity) and C075 = 1 (1 stop bit), 8 data bits fixed, which is the 9600 8N1 block above and the unit ID this seed uses. Source: Hitachi "WJ200 Series Inverter Instruction Manual" NT325X, Appendix B "ModBus Network Communications" (https://www.hitachi-iesa.com/sites/default/files/inverter-pdf/WJ200_Instruction_NT325X_0.pdf), B-24/B-25 ModBus Coil List, B-30/B-31 (iii) List of registers (monitoring), B-31 (iv) List of registers, B-31/B-32 (v) List of registers (function modes), and the C071-C078 parameter registers on B-43. Addressing: the manual calls its numbers "the network register address offset", so they are stored unchanged as zero-based wire addresses (coil 0001h is the first offset, register 1001h is the d001 monitor high word). 32-bit monitors occupy two consecutive registers, high word first, which is why the device declares HighFirst. Coils the manual marks R are read-only status bits and are listed with access R; the control coils (operation, rotation direction, external trip, trip reset, intelligent inputs) are R/W. Deliberate omissions: the trip-history block (0011h-004Eh: six trip records with factor, frequency, current, voltage and run time) and the parameter groups B, C and D beyond the communication parameters shown are not transcribed; the manual prints those as a further ~250 register pairs whose per-row resolution column repeats without adding monitoring value. Reserved and inaccessible rows are omitted.