Gewiss 3300 VA, User Manual

Page: 63 / 146

63
P
ROBLEM SOLVING
¾ Commands in progress: Indicates presence of a remote command in progress.
CODE DESCRIPTION
C01
Remote shutdown command
C02
Remote load on bypass command
C03
Remote switch-on command
C04
Battery test in progress
LOCK
The LOCK (block) type report signals are usually preceded by an alarm signal and, on account of their
importance, result in the inverter being switched off and the load being powered through the bypass line (the
procedure is excluded in case of lockouts due to strong and persistent overloads and lockouts following a
short-circuit).
CODE DESCRIPTION
L03
Auxiliary power supply incorrect
L04
High temperature on heat sinks
L05
Temperature Sensor1 broken
L07
Temperature Sensor2 broken
L10
Input fuse broken or input relay stuck (does not close)
L13
Capacitor precharging failure
L20
Capacitor bank undervoltage
L21
Capacitor bank overvoltage
L40
Inverter overvoltage
L41
D-C voltage on output
L42
Inverter voltage not right
L43
Inverter undervoltage
L50
Overload: load > 103%
L51
Overload: load > 110%
L52
Overload: load > 150%
L53
Short-circuit
* In ECO mode, the load is normally powered by the bypass. Therefore, in the presence of a load of constant power,
the current absorbed depends on the mains voltage, which may accordingly be in excess of the value allowed by the
input plug and the protection upstream.
When this situation arises, the UPS reports a failure which automatically disappears if the input voltage increases
and/or the output load is reduced.