MegaFlex 1000 to 1600 UPS User Manual / REV-A
6.3.1 Events (alarms and messages)
Each of the following listed events, alarm or message, can be displayed on the LCD screen, on a PC with the
software “Data Protection” installed or with the monitoring system “iUPSGuard”.
Alarms and Messages are differently specified because the alarms are indicating an abnormal functioning of the
UPS (which are additionally signaled with the LED ALARM and acoustically with the buzzer), while the messages
indicate the various states of operation of the UPS (stored in the events list, but not activating the LED ALARM
and the acoustical alarm).
6.3.2 Alarms list
Alarm Description
SETUP VALUES LOST
Parameters are lost and have been replaced with default
values.
Please contact your ABB Service Center for intervention.
REGULATION BOARD FAILURE
A blocked DSP on the Control board causes this alarm and
consequently the shut-down of Rectifier and Inverter
UPS FAILURE ON PARALLEL SYSTEM
The master unit detected the slave unit missing on the
communication bus even though “Q1 – External UPS Output
Circuit Breaker” is still closed.
BUS JA CRC FAILURE
The parallel communication bus system is subject to high
errors rate on channel JA.
007 BUS JB CRC FAILURE
The parallel communication bus system is subject to high
errors rate on channel JB.
BUS JA FAILURE
There is an interruption in the channel JA of the parallel
communication bus system.
BUS JB FAILURE
There is an interruption in the channel JB
of the parallel
communication bus system.
CONNECTIVITY BUS FAILURE
The connectivity communication bus is faulty or
interrupted.
EARTH LEAKAGE CURRENT
The unit has detected an earth leakage
current above a
configured threshold (typically 5% of the maximum rated
input current).
Applicable to 3-wire (3ph+PE) distribution only.
LOAD GROUND FAULT
The unit has detected load ground current above a
configured threshold.
Applicable to 3-wire (3ph+PE) distribution only.
CAN BUS FAILURE
The Control Panel communication bus is faulty or
interrupted.
RECTIFIER FUSES FAILURE
The u-switch mounted on the Rectifier input fuses
a blown fuse and consequently it is shut down.
Clearance of this condition allows you to restart the
Rectifier.
K4 CLOSING FAILURE
K4 not closed despite a closing command being issued.
Signaled by auxiliary contact.
K4 OPENING FAILURE
K4 not open despite an opening command being issued.
Signaled by auxiliary contact.
Utility remains connected to Rectifier bridge.
BATTERY FUSES FAILURE
This function, when enabled on input programmable relays
(“Service Code” required), warns the user about the
external Battery Fuses failure or MCB
NO free contact.
To Next Page
Loading...
Need help?
General