APC MGE 6739380EN/JC User Manual download pdf (Page 40)

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FREQUENCY REVERSAL

AUXILIARY CONTROL

The UPS has received a command to

change its output frequency (50 or

60Hz).

This command is only executed if the

inverter is off. The frequency will be

changed the next time the inverter is

started. The command corresponds to

an auxiliary control signal received via

a "Media Contacts 15" option set for

this function

I LOAD > IN

CHECK LOAD A

The power drawn by the load is greater

than the rated value. The blinking "A" at

the end of the message is a prompt to

read the load current measurement.

TRANSFER FAULT

CALL SUPPORT DEPT.!

A fault has occurred in the static switch

which ensures transfer of the load

between the inverter and Mains 2.

Servicing by the after-sales support

department is required.

PHASE OUT OF LIMITS

For a single-unit UPS or Static Switch

Cubicle, the phase shift between the

inverter and Mains 2 is outside

tolerances. Transfer of the load

between the inverter and Mains 2 will

result in an interruption in the supply of

power to the load.

For a parallel UPS, the phase shift

between this inverter and the other

inverters is outside tolerances, and the

corresponding UPSs has therefore

been disconnected.

MAINS 2 SWITCH

Q4S OPEN !

Mains 2 input switch Q4S is open, i.e.

transfer of the load from the inverter is

impossible.

OUTPUT SWITCH

Q5N OPEN !

Inverter output switch Q5N is open, i.e.

the load cannot be supplied by the

inverter.

MAINT. BYPASS SWITCH

Q3BP CLOSED !

Maintenance bypass switch Q3BP is

closed. The system is in maintenance

configuration and the load is supplied

by Mains 2.

EMERGENCY OFF

OVERLOAD > IN !

The load is no longer supplied by

Mains 2 following an extended

overload.

BATTERY

CHARGING !

The battery is currently being

recharged.

INDEPENDENT

INVERTER FREQUENCY!

The inverter frequency is stable and

accurate to 0.05Hz, but no longer

synchronous with that of Mains 2.

NUMBER OF INVERTERS

READY INSUFFICIENT!

This message is valid only for parallel

UPS systems. The number of UPSs

ready for connection to the load is

insufficient for the required power level.

Another UPS must be started before all

the lines together may supply the load.

Until another line is started, the load will

remain supplied by Mains 2.

BATTERY MAINTENANCE

CALL AFTER-SALES

Indicates that the battery has probably

reached the end of its service life

(based on the estimated average

service life since its installation).

TRANSFER DISABLED

AUXILIARY CONTROL

Transfer of the load to Mains 2 is

inhibited due to:

◗ certain transfer conditions not

satisfied;

◗ "transfer to Mains 2 with interruption

disabled" auxiliary contact of the

"Media Contacts 15" option closed.

INVERTER FAULT

CALL SUPPORT DEPT.!

A fault has occurred in the inverter

module requiring servicing by the after-

sales support department.

INVERTER SHUTDOWN

OVERLOAD > IMAX !

An overload greater than 1.6 In has

occurred on the load, resulting in

inverter shutdown.

INVERTER SHUTDOWN

OVERLOAD > IN A

An overload between In and 1.6 In has

occurred on the load, resulting in

inverter shutdown. The blinking "A" at

the end of the message is a prompt to

read the load current measurement.

AUXILIARY CONTROL

SIGNAL RECEIVED !

An auxiliary "Media Contacts 15" option

signal has been received. The next

display will indicate which of the four

possible functions was set.

FORCED UPS SHUTDOWN

AUXILIARY CONTROL

The UPS has received a forced

shutdown command. This corresponds

to an auxiliary control signal received

via a "Media Contacts 15" option set for

this function.

PROTECT.UPS SHUTDOWN

AUXILIARY CONTROL

The UPS has received a shutdown

command. This command will only be

executed if load transfer conditions on

Mains 2 are satisfied. This corresponds

to an auxiliary signal received via a

"Media Contacts 15" option set for this

function.

"Monitor" alphanumeric display (cont.)

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 49 50

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APC MGE 6739380EN/JC User Manual Page 40

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