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OPM_SGS_USM_10K_40K_0US_V010.doc 37/88 Operating Manual
SG Series
10, 20, 30 & 40 kVA
Code Alarms Meaning
4404
K6 CLOSING
FAILURE
K6 open despite a closing command being issued.
Signaled by auxiliary contact.
The Load cannot be supplied by Automatic Bypass.
4405
K6 OPENING
FAILURE
K6 closed despite an opening command being issued.
Signaled by auxiliary contact.
4406
SSM
FAILURE
A faulty current has been detected in the static-switch causing
the opening of the contactor K6 for 10 sec.
After 3 times K6 remains definitively open.
The alarm reset can be done only from Service.
4408
K8 CLOSING
FAILURE
K8
not closed despite a closing command being issued.
Signaled by auxiliary contact.
The
Load
cannot be supplied by
Automatic Bypass
.
4409
K8 OPENING
FAILURE
K8 closed despite an opening command being issued.
Signaled by auxiliary contact.
4410
BYPASS UTILITY
OUT OF TOLERANCE
The Utility Bypass Voltage is out of the tolerances (± 10%).
K6 opens, synchronization with Utility is inhibited and transfer
to Utility is blocked.
4420
K3 CLOSING
FAILURE
K3 open despite a closing command.
Inverter is switched OFF.
It can be restarted manually after recovery of the alarm
condition.
4421
K3 OPENING
FAILURE
K3 not open despite an opening command.
Be aware the
DC Capacitors
could remain charged.
4520
NO INVERTER
POWER
The Load supplied by Utility exceeds the Inverter power.
The Load remains supplied by Utility until the alarm stays ON.
4522
FAN
FAILURE
A malfunction on the UPS ventilation system was detected.
No change for UPS operation.
Call immediately Service Center for intervention.
4530
LOAD LOCKED
ON UTILITY
Load
is locked on
Utility
because 3 transfers on
Utility
have
been detected in a short time (default 30 sec.).
The transfer will be free after a time defined in parameter
(default 30 sec.).
4531
LOAD ON UTILITY BY
ERROR DETECTOR
Load is transferred to Utility because the error detector
detected a disturbance on the output voltage.
4563
EMERGENCY OFF
ACTIVATED
Alarm after detection of an EPO from an external safety
device connected on Customer Interface Board.
Consequently K3, K4, K6, K7, K8 open, Rectifier, Inverter and
SSM are switched Off.
4570 OVERLOAD
The UPS-System is in an overload condition >125% on
Inverter, or
>
150% on Utility.
With Utility unavailable, a sequence of “stop operation” starts.
Time out depends on
Load
quantity.
4571
OVERLOAD:
LOAD ON UTILITY
With Utility Bypass supply available and load
>
115%, the
Load is transferred on Utility.
Load
will be transferred again automatically on
Inverter
when
Load <100%.
4581
INVERTER AND
UTILITY NOT SYNCH.
The voltages of Utility and Inverter are not synchronized,
which causes the opening of K6.