APC 20 - 200 KVA user manual Battery Charging BAT. = XXX a U BAT. = XXX

Control-panel display (cont.)

BYPASS SWITCH Q3BP

IS CLOSED

Maintenance bypass switch Q3BP is closed. The system is in maintenance configuration and the load is supplied by the bypass AC source.

STATIC SWITCH (M2) OFF

DUE TO AN OVERLOAD

The load is no longer supplied by the bypass AC source (M2), due to an extended overload. The buzzer sounds continuously.

BATTERY CHARGING

I BAT. = XXX A U BAT. = XXX V

The battery is currently being recharged.

BATTERY AT END OF SERVICE LIFE

CALL MAINTENANCE

The battery is nearing the end of its estimated service life. This information is based on average service-life calculations since its initial installation. The buzzer sounds slowly and discontinuously.

EMERGENCY OFF OR FULL SHUTDOWN

This message is displayed when either the external emergency-off pushbutton or the full-shutdown button 7 on the control panel are pressed. The result is:

◗shutdown of the inverter;

◗shutdown of the rectifier/charger;

◗opening of the battery circuit breaker;

◗activation of a relay contact on the remote-indications relay board.

To fully de-energise the installation, these functions must also open the external, upstream circuit breakers on the normal and bypass AC supply lines. The buzzer sounds continuously.

THE BATTERY C.B. QF1 IS OPEN, CHECK THE INSTALLATION

Battery circuit breaker QF1 is open. The load is no longer protected because battery power is no longer available in the event of a normal AC source outage. The buzzer sounds continuously.

LOW BATTERY SHUTDOWN

The inverter has shut down at the end of battery power. The buzzer sounds continuously.

INTERNAL UPS FAULT,

INVERTER FAULT,

CALL MAINTENANCE

A fault has occurred in the inverter. Servicing by the after-sales support department is required. The buzzer sounds continuously.

INTERNAL UPS FAULT,

CHARGER FAULT,

CALL MAINTENANCE

A fault has occurred in the rectifier/ charger. Servicing by the after-sales support department is required. The buzzer sounds slowly and discontinuously.

FORCED TRANSFER TO INVERTER REQUESTED, POWER TO LOAD MAY BE INTERRUPTED, CONFIRM YOUR REQUEST WITH KEY

The requested transfer to the inverter may provoke an interruption in the supply of power to the load if Mains 2 characteristics are not within the specified tolerances.

THE NUMBER OF UPS READY IS INSUFFICIENT,

LOAD TRANSFER IN STAND BY

This message may be displayed in non- redundant, parallel UPS systems, when the number of ready inverters in not sufficient to supply the load.

INVERTER NOT CONNECTED

This message may be displayed in parallel UPS systems, when the inverter is not connected to the load.

PARALLEL UPS,

FORCED TRANSFER INHIBITED

This message is displayed when forced connection is requested on a parallel UPS system for a power extension.

INTERNAL UPS FAULT,

SELF-TEST FAULT

Communication between the system and the display is faulty. The buzzer sounds slowly and discontinuously.

FORCED TRANSFER TO M2 REQUESTED,

POWER TO LOAD MAY BE INTERRUPTED

CONFIRM YOUR REQUEST WITH KEY

This message is displayed following pressing of the "forced-transfer" key 20, when the load is supplied via the inverter.

UPS SUPPLIED BY A GENERATOR SET

This message informs the user that the UPS has received the order to limit the current drawn by the rectifier/charger.

It is displayed when the corresponding signal is transmitted by the remote indications board which must be configured for this function.

E-51028230XT/BG - 23