Page 12 - 51027617EN/AI
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
z
within tolerances (±12 % of the rated
voltage).
red indicates that the voltage is outside
z
tolerances.
The LEDs
3 indicate the operating status
of the sources S1 and S2.
OFF: source not used.
z
green: preferred source supplying
z
power.
yellow: alternate source supplying
z
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
STS
module. Contact the
EATON after-sales technical support.
In addition to the LEDs, the
buzzer
6
sounds in the following events:
source S1 or source S2 outside
z
tolerances;
internal fault in the
z
STS
module.
Once the problem has been identified,
the buzzer may be turned off by pressing
button
5 .
Fig. 11
Fig. 12
AC
source
rectifier
battery
inverter
to the
sensitive
equipment
AC
source
rectifier
battery
inverter
UPS S1
UPS S2
STS
S1
S2
Note:
to make source S2 the priority
source (for example, if maintenance is
required on source S1), simply press
button
2 .
Summary of Contents for STS 16
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Page 50: ...Pagina 48 51027617IT AI Fig 2 vista frontale e posteriore dei moduli STS Presentazione ...
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