MGE UPS Systems Pulsar STS - Page 17

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MGE UPS SYSTEMS - 5102761700/AC
Operation
1
S1
S2
2 3 4 5 6
It is assumed here that source S1 is the
preferred source (button 2 in the up
position).
The LEDs 1 indicate the voltage status of
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 3 indicate the operating status
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 4 is red if an internal fault has
occurred in the Pulsar STS module. Contact
the MGE UPS SYSTEMS after-sales
technical support.
In addition to the LEDs, the buzzer 6
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 2 .
Fig. 11
Fig. 12
AC
source
rectifier
battery
inverter
to the
sensitive
equipment
AC
source
rectifier
battery
inverter
UPS S1
UPS S2
Pulsar STS
S1
S2