Brainboxes PX-246 Especificaciones descargar pdf (Pagina 68)

Protections

Display Reason

PLC Functions

If a PLC Function has been configured as a warning the appropriate

LCD message will be displayed and the COMMON ALARM LED will

illuminate.

S1 Failure Latch

The module has detected that S1 has failed for either an under/over

voltage/frequency condition. The latched alarm will not clear until the

START INHIBIT/RESET

‘ ’

button is pressed.

S1 Failure Unlatched

The module has detected that S1 has failed for either an under/over

voltage/frequency condition. The unlatched alarm will automatically clear

upon S1 returning to an available state.

S2 Failure Latch

The module has detected that S2 has failed for either an under/over

voltage/frequency condition. The latched alarm will not clear until the

START INHIBIT/RESET

‘ ’

button is pressed.

S2 Failure Unlatched

The module has detected that S2 has failed for either an under/over

voltage/frequency condition. The unlatched alarm will automatically clear

upon S2 returning to an available state.

7.3 ELECTRICAL TRIPS

Electrical trips are latching unload and stop S2 (if configured as a generator) but in a controlled

manner. On initiation of the electrical trip condition the module will de-energise the ‘Close S2 Output’

to remove the load from S2. Once this has occurred the module will start the Cooling timer and allow

the generator to cool down and shut off. The alarm must be accepted and cleared, and the fault

removed to reset the module.

Example

1/2 Alarm

Digital Input A

Latched

Electrical Trip

Electrical trips are latching alarms and unload and stop S2 (if configured as a generator). To clear

these alarms the START INHIBIT/RESET

‘

’ button is pressed

Display Reason

Auxiliary Inputs

If an auxiliary input has been configured as an electrical trip, the

appropriate LCD message will be displayed and the COMMON ALARM

LED will illuminate.

Expansion Inputs

If an expansion input has been configured as an electrical trip, the

appropriate LCD message will be displayed and the COMMON ALARM

LED will illuminate.

PLC Functions

If a PLC Function has been configured as an electrical trip, the

appropriate LCD message will be displayed and the COMMON ALARM

LED will illuminate.

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