0MNA080A55-GB REV 01 page 53 / 75
REMOTE COMMAND FOR BY-PASS: ACTIVE 8=DEACTIV.
Alarm present when the system has been deactivated and switched onto the by-pass, by the command applied with
the "signals and remote commands" connector.
The command is not stored, and the system returns to normal operation when the command is cancelled, provided
there is a power supply voltage.
OVERTEMPERATURE OR NO VENTILATION
Alarm when one of the internal temperatures on the system card, the inverter power modules, the rectifier power
modules or the transformers has exceeded the maximum value allowed.
This may be caused by:
-
operation in an environment where the temperature is too high;
- a fault in the fans.
WRONG SEQUENCE INPUT PHASES
Indicates that the sequence of the phases at the by-pass line input is not correct.
It is normally sufficient to change the two phases over in order to obtain normal operation.
NO OUTPUT CLOSE SWOUT OR SWMB
Alarm when there is no output voltage because SWOUT and SWMB are both open at the same time.
BLOCK COMMAND ACTIVE; 8=DEACTIV.
Alarm present when the command for total shutdown from the panel or through the RS232 connection,
COMMAND STORED,
has been inserted
.
The system executes the shutdown command with a few seconds’ delay
to allow for cancellation. The command remains stored even during shutdown due to a power outage. When the
power supply is restored, the system does not return to normal operation if the block that has been intentionally set is
not deactivated; to deactivate it close SWBY or, if required, press 8.
REMOTE BLOCKING COMMAND: ACTIVE 8=DEACTIV.
As the previous alarm, with command present from the "REMOTE" connector.
MEMORY CHANGED: CODE = number
Code 1
the memory has been changed and the operating parameters have returned to standard values.
If non-standard values were previously set, these must be personalized again.
Switch the display off and then on again in order to remove the alarm.
N.B.: codes other than 1 may be displayed temporarily during variations due to personalization, but this does not
affect normal operation.
AUTO-OFF Timer: Toff= 0: 0', Ton= 0: 0'
Alarm when the daily timer set for the control of the automatic shutdown and restart cycles starts operating ( page
62). The values of Toff and Ton are factory-set to zero (thus the timer condition is disabled).
