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34006452EN/AC - Page 48
"Monitor" alphanumeric display
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.
The UPS has received a command to change its output frequency (50 or 60 Hz).
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
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.
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.
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 input switch Q4S is open, i.e. transfer of the load from the inverter is impossible.
Inverter output switch Q5N is open, i.e. the load cannot be supplied by the inverter.
Maintenance bypass switch Q3BP is closed. The system is in maintenance configuration and the load is supplied by Mains 2.
The load is no longer supplied by Mains 2 following an extended overload.
PROTECT.UPS SHUTDOWN
AUXILIARY CONTROL
FREQUENCY REVERSAL
AUXILIARY CONTROL
I LOAD > IN
CHECK LOAD A
TRANSFER FAULT
CALL SUPPORT DEPT. !
PHASE OUT OF LIMITS
!
MAINS 2 SWITCH
Q4S OPEN !
OUTPUT SWITCH
Q5N OPEN !
MAINT. BYPASS SWITCH
Q3BP CLOSED !
EMERGENCY OFF
OVERLOAD > IN !