ATS_AMF_SEQ
Auto-mains-failure sequence: start delay, transfer to the set, return delay, retransfer and cooldown, in open or closed transition.
When to use it
Use ATS_AMF_SEQ when one generator backs up one utility supply through two breakers, and the controller must start the set on a utility failure, move the load, move it back when the utility returns, and run the set down afterwards.
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 |
|---|---|
| ENABLE | BOOL |
| MAINS_OK | BOOL |
| TEST_REQ | BOOL |
| GEN_READY | BOOL |
| SYNC_OK | BOOL |
| PAR_PERMIT | BOOL |
| ST_52G | BOOL |
| ST_52M | BOOL |
| XFER_MODE | USINT |
| START_DELAY | TIME |
| RETURN_DELAY | TIME |
| START_TMO | TIME |
| DEAD_T | TIME |
| MAX_PAR_T | TIME |
| XFER_TMO | TIME |
| COOL_T | TIME |
| ACK | BOOL |
Outputs
| Port | Type |
|---|---|
| STATE | USINT |
| GEN_START_CMD | BOOL |
| CLOSE_52G | BOOL |
| OPEN_52G | BOOL |
| CLOSE_52M | BOOL |
| OPEN_52M | BOOL |
| ON_GEN | BOOL |
| ON_MAINS | BOOL |
| PARALLEL | BOOL |
| USING_CLOSED | BOOL |
| FAULT_HOLD | BOOL |
| ALM_FAIL_TO_START | BOOL |
| ALM_FAIL_TO_XFER | BOOL |
| ALM_PAR_TMO | BOOL |
| ALM_CFG_ERR | BOOL |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
ATS_AMF_SEQ 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
- 14
- Simulated scans
- 275
- 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
- Conforms to IEC 61499
Download ATS_AMF_SEQ — 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, the IEC 61499 function block type (.fbt) and the datasheet.
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