Operation
It is assumed here that source S1 is the
preferred source (button
in the up
2
position).
The LEDs
indicate the voltage status of
1
the sources S1 and S2.
green indicates that the voltage is within
tolerances (± 12% of the rated voltage).
red indicates that the voltage is outside
tolerances.
The LEDs
indicate the operating status
3
of the sources S1 and S2.
OFF: source not used.
green: preferred source supplying power.
yellow: alternate source supplying power.
The applications are supplied with power if
either of the two LEDs is ON.
LED
is red if an internal fault has
4
occurred in the Pulsar STS module. Contact
the MGE UPS SYSTEMS after-sales
technical support.
In addition to the LEDs, the buzzer
sounds in the following events:
source S1 or source S2 outside
tolerances;
internal fault in the Pulsar STS module.
Once the problem has been identified, the
buzzer may be turned off by pressing button
.
5
Note: to make source S2 the priority source
(for example, if maintenance is required on
source S1), simply press button
Fig. 11
AC
source
6
AC
source
.
2
Fig. 12
S1
S2
1
2
3
rectifier
inverter
battery
UPS S1
rectifier
inverter
battery
UPS S2
4
5
6
Pulsar STS
S1
to the
sensitive
equipment
S2
MGE UPS SYSTEMS - 5102761700/AC
25