BATTERY_MON
Starting-battery and charger supervision with a crank volt-drop test, crank-inhibited low-voltage alarm and latched charger failure.
When to use it
Use BATTERY_MON when a generator set's starting battery and its float charger have to be supervised between runs — the NFPA 110 battery-charger-failure and low-battery-voltage alarms — and a weak battery must be caught by the volt drop it shows under crank rather than by a failure to start.
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 | — |
| VDC | REAL | V |
| VDC_OK | BOOL | — |
| LOW_V | REAL | V |
| HIGH_V | REAL | V |
| V_HYST | REAL | V |
| CRANK_MIN_V | REAL | V |
| CHG_AC_OK | BOOL | — |
| ENGINE_RUN | BOOL | — |
| CRANKING | BOOL | — |
| ALM_DLY | TIME | — |
| CRANK_RECOVER_T | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| CHARGER_FAIL | BOOL | — |
| ALM_LOW_V | BOOL | — |
| ALM_HIGH_V | BOOL | — |
| ALM_WEAK_BATT | BOOL | — |
| ALM_VDC_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
| BATT_OK | BOOL | — |
| CRANK_MIN_VDC | REAL | V |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 13
- Simulated scans
- 197
- 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 BATTERY_MON — 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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