User Manual
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© 2019 AMETEK Electronic Systems Protection | Technical Support: 1-800-645-9721 | surgex.com 41
Alarm
type
LCD display
Possible cause
Remedy
Fault
1A : NegPower
UPS output power is negative.
There is energy feedback into the
UPS from the output. This may be
caused by regenerative load or cur-
rent control failure in the parallel
system.
Contact the dealer.
Fault
21 : Batt SCR Short
The internal battery SCR has failed
short.
Contact the dealer to repair.
Fault
24 : Inv Rly Short
The internal inverter relay is perma-
nently shorted or the SCR of the
STS (Static Transfer Switch) is
shorted.
Contact the dealer to repair.
Fault
35 : Para Comm Fail Parallel cable for communication is
not securely connected in the
parallel system.
Securely connect the parallel cable.
Fault
36 : OP.I Unbalance
The output current is extremely
unbalanced between the parallel
UPSs or there is an error in the
parallel system.
Contact the dealer to repair.
Fault
41 : Over Temp
The internal temperature is too
high and has reached the fault
level (shutdown) :
1) environment may be too hot.
2) fan may be blocked or has
failed.
3) ventilation may be blocked by
the wall or other objects.
4) the UPS is overloaded.
1) Do not allow the ambient temp-
erature to exceed 40°C.
2) confirm that the fan is not blocked
and is operating normally.
3) confirm that there is good ventila-
tion.
4) remove the overload.
Fault
42 : CPU Comm Fail Internal communication failure
between CPUs.
Contact the dealer to repair.
Fault
43 : Over load
Duration of overload is outside the
specification and the UPS shuts
down automatically.
Remove excess loads from the UPS
output and restart the UPS.