UPS_BYPASS_CTRL
Supervised UPS static-bypass transfer with an ANSI 25 synchro-check, a two-person rule and position proof.
When to use it
Use UPS_BYPASS_CTRL when a static UPS must be transferred to and from its static bypass under supervision — for maintenance, for a load bank, or because the inverter has failed — and the transfer has to be blocked when the inverter and the bypass source are not synchronised.
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 |
|---|---|---|
| ENABLE | BOOL | — |
| REQ_BYPASS | BOOL | — |
| REQ_INVERTER | BOOL | — |
| AUTH_A | BOOL | — |
| AUTH_B | BOOL | — |
| SYNC_OK | BOOL | — |
| LOAD_PCT | REAL | % |
| DV_PCT | REAL | % |
| DF_HZ | REAL | Hz |
| DPHI_DEG | REAL | deg |
| V_INV_PCT | REAL | % |
| V_BYP_PCT | REAL | % |
| DV_MAX_PCT | REAL | % |
| DF_MAX_HZ | REAL | Hz |
| DPHI_MAX_DEG | REAL | deg |
| V_LIVE_PCT | REAL | % |
| XFER_MAX_LOAD_PCT | REAL | % |
| INV_FAULT | BOOL | — |
| BYP_FB | BOOL | — |
| XFER_TMO | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type |
|---|---|
| ON_BYPASS | BOOL |
| ON_INVERTER | BOOL |
| PERMIT | BOOL |
| AUTH_OK | BOOL |
| XFER_BLOCKED | BOOL |
| ALM_SYNC_FAIL | BOOL |
| ALM_XFER_FAIL | BOOL |
| ALM_UNSYNC_XFER | BOOL |
| ALM_NO_PATH | BOOL |
| ALM_AUTH | BOOL |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 12
- Simulated scans
- 155
- 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 UPS_BYPASS_CTRL — 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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