4.5.2Setting the PowerSupply UnitLocations of jumpers The figure shows the jumper settings when the unit is delivered.Functions of the jumpers The jumper settings in bold print indicate the status when the unit isdelivered.Function JumpersBattery monitor (BAU) OnBattery monitor (BAU) OffNN-MM closedNN-MM openPSU shutdown after fan faultNo PSU shutdown after fan fault (only LEDindication, relay signal)F-R closedF-R openBattery fault will be indicated by fault stateof the signalling relay (contacts 2-3 closed).Battery undervoltage ( < 2.7 V) resultsin battery fault signal (jumper MM-NN).Apart from "Batt. Low" LED and outputof signal BAU, the signalling relay canbe activated as of Version 6 of the PSU.Battery fault will not be indicated by faultstate of the signalling relay.RR-LL closedRR-LL openConnectorX1ConnectorX2RRFront PlateLLMMNNRF6ES5 955-3NA12 Power Supply UnitSystem Manual4 - 72 C79000-B8576-C199-03