Emerson Liebert NX 10-30kVA User Manual

Page 109

UPS Status Messages

101

Battery Contactor Open

Battery Contactor Close

Battery Reverse

Connect the battery again and check the wiring of batteries

No Battery

Check the battery and the wiring of batteries

Auto start

After UPS was shutdown at EOD, inverter auto starts when utility restore.

BCB closed

BCB closed from dry contact signal.

BCB open

BCB open from dry contact signal.

Battery Float Charging

Battery is float charging

Battery Boost Charging

Battery is boost charging

Battery Discharging

Battery is discharging

Battery Period Testing

Battery is period self-testing.

Batt. Capacity Testing

Battery is capacity self-testing.

Batt. Maint. Testing

Battery is maintenance self-testing.

UPS System Testing

UPS System is testing

Inverter in Setting

Inverter is in parameter setting

Rectifier in Setting

Rectifier is in parameter setting

Balancer Fault

Internal VDC (+) and VDC (-) offset by over 50V exceeding the inverter DC offset compensation

capacity. Inverter shuts down. Load transfers to bypass.

Balancer Over Current

Internal Inverter DC offset balancing IGBT current rating exceeded 300%. Inverter shuts down.

Load transfers to bypass.

Batt. Contactor Fail

Battery contactor or circuit breaker not responding to control signals.

Batt. Converter Fault

Battery converter output voltage beyond limits or battery fuse failed. Battery converter shuts

down. Battery backup not available.

Batt. Conv. Over. Curr.

Battery converter overloaded. Battery converter shuts down. Battery backup not available.

Batt. Converter Overtemp. Overheating of battery converter heatsinks. Battery converter shuts down. Battery backup not

available.

Operation Invalid

This record is registered following an incorrect operation.

Byp. Abnormal Shutdown

Both bypass and inverter voltages unavailable. Load interruption.

Setting Save Error

History records not saved. (Reserved)

Mains Neutral Lost

AC Input mains reference neutral not detected.

Balancer overtemp.

Inverter voltage offset control choke overheated. Inverter shuts down. Load transfers to bypass.

Protocol version clash

Firmware incompatibility between monitor board and digital signal processor board.

MBP-T cabinet Fan Fault

Maintenance bypass cabinet fans fault.

Ext Input TX Overtemp

External input isolation transformer overtemperature

Ext Output TX Overtemp

External output isolation transformer overtemperature

Battery Room Alarm

Environment in Battery Room Needs Attention

Rec Flash Update

Rectifier firmware is being updated

Inv Flash Update

Inverter firmware is being updated

Monitor Flash Update

Monitor firmware is being updated

Input contactor fault

Contactor P.S. 1 fault

Contactor Power Supply board 1 Fault

Contactor P.S. 2 fault

Contactor Power Supply board 2 Fault

LBS abnormal

LBS is abnormal

DSP firmware error

The inverter firmware does not match the rectifier firmware.

Table 44

UPS status messages (continued)

Event Message

Description / Suggested Action (if any)