Options

3.4.1Available Selectable Input Contacts

On Gen

Fast Power Off

MBB Aux Contacts

Start battery test (see Note 4 below)

Fault acknowledge

Bypass and Inverter both Off

Stop battery test (see Note 4 below)

Notes

1.Each signal can be inverted

2.Each signal can have a turn-on delay applied from 0-60 seconds

3.Each signal can have a turn-off delay applied from 0-60 seconds

4.To guarantee that the command is accepted, keep the function active at least 10/15 seconds.

3.4.2Available Selectable Output Contacts

• Summary Alarm (fault/warning)

• Inverter Not On

Residual Battery Autonomy is Expiring

Rectifier or Bypass Mains Failure

Inverter On

Load Supplied by battery

Bypass Active (AS400-like)

Maintenance Bypass Switch Closed

• Inverter Operation, Self Clocked

• Shutdown Command Pending

• Summary Fault

• Inverter Stopped Due to Fault

Bypass Stopped Due to Fault

Rectifier Fault

• Summary Warning

• Inverter Over Temperature warning

• Imminent Shutdown

• Battery Undervoltage

Inverter Overload

Rectifier or Bypass Mains Failure

Rectifier Mains Failure

Bypass Mains Failure

• Battery Overtemperature

• SGS on (Standby Generator Set)

• Battery Prewarning Level

• Battery Capacity @ 25%

• Load @ 25%

• Battery Capacity @ 50%

• Load @ 50%

• Battery Capacity @ 75%

• Load @ 75%

• Battery Capacity @ 100%

• Load @ 100%

• Line Fault

• Load @ 105%

• Summary Alarm OR Line Fault

• Power Loss Prewarning

• Power Loss Alarm

Backfeed Fault

 

 

Notes

1.Each signal can be inverted

2.Each signal can have a turn-on delay applied from 0 to 60 seconds

3.Each signal can have a turn-off delay applied from 0 to 60 seconds

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Liebert®NX

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Image 35
Emerson NX manual Available Selectable Input Contacts, Available Selectable Output Contacts