YAS_GA800_VFD
Yaskawa GA800 MEMOBUS/Modbus driver — bidirectional speed command, cited control/status word mapping and sequenced fault acknowledge.
When to use it
Use YAS_GA800_VFD when a Yaskawa GA800 is driven over MEMOBUS/Modbus from the PLC and the application needs a run/direction/speed interface rather than a raw register write — particularly where reverse is a real operating direction and the drive's H5-12 run-command method is not the factory default.
Interface
The published port signature. This is the whole of what the block exposes to your program — the implementation body is not shown here and ships with the download.
Inputs
| Port | Type | Unit |
|---|---|---|
| RUN | BOOL | — |
| DIR | BOOL | — |
| SPD_REF | REAL | Hz |
| H5_12 | INT | — |
| SPD_TOL_HZ | REAL | Hz |
| STATUS_WORD | WORD | — |
| FREQ_OUT_WORD | WORD | — |
| COMMS_OK | BOOL | — |
| COMMS_TMO | TIME | — |
| O1_03 | INT | — |
| MAX_FREQ_HZ | REAL | Hz |
| MON_HZ_PER_COUNT | REAL | Hz/count |
| NET_SELECT | BOOL | — |
| REQ_NET_CTRL | BOOL | — |
| MFI_MASK | WORD | — |
| EXT_TRIP | BOOL | — |
| FAULT_RST | BOOL | — |
| RST_QUIESCE_T | TIME | — |
| RST_PULSE_T | TIME | — |
| RST_VERIFY_T | TIME | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| AT_SPEED | BOOL | — |
| CTRL_WORD | WORD | — |
| FREQ_REF_WORD | WORD | — |
| REF_HZ | REAL | Hz |
| READY | BOOL | — |
| RUNNING | BOOL | — |
| REVERSING | BOOL | — |
| FAULT | BOOL | — |
| RESETTING | BOOL | — |
| SPD_ACT | REAL | Hz |
| MFDO1 | BOOL | — |
| NET_REF_OK | BOOL | — |
| NET_CTRL_OK | BOOL | — |
| TELEGRAM_STALE | BOOL | — |
| ALM_COMMS | BOOL | — |
| ALM_RESET_FAILED | BOOL | — |
| ALM_NOT_IN_NET | BOOL | — |
| ALM_DATA_SETTING | BOOL | — |
| ALM_SCALE_UNKNOWN | BOOL | — |
| ALM_REF_CLAMP | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
| ALM_MON_UNSCALED | BOOL | — |
| ALM_DIR_MISMATCH | BOOL | — |
Supervised control write
YAS_GA800_VFD commands a real actuator. It is written to sit underneath your own interlock, permissive and protection logic — not to replace it. Commission it as you would any control block you wrote yourself.
Validation evidence
- Tests
- 22
- Simulated scans
- 247
- Simulator
- v0.1.0
Complete IEC 61131-3 implementation with a published test suite that runs on the vplant simulator. The counts above are that suite, executed on this build.
- Conforms to IEC 61131-3
Download YAS_GA800_VFD — free
Create a free Ri Tech account to download the block. You get the Structured Text body, the Rockwell Add-On Instruction (.L5X), the Schneider Control Expert DFB (.XDB), PLCopen XML and the datasheet.
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Source is never published on this page. The implementation is released to a signed-in Ri Tech account — free of charge, but never anonymously.