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PCS100 UPS-I
User Manual
7.2
Utility Disconnect Status LEDs
Utility Disconnect Status LEDs show local status information about the Utility Disconnect. This information is
generally not reproduced on the GDM.
LED 1
LED 2
LED 4
LED 5
LED 6
LED 3
LED 7
SCRs Disable
No SCR Fault
SCR Temp OK
No SCR Short
Open FSB
FSB Open
Figure 7
-
12: 900 A Utility Disconnect Status LEDs
LED 1
LED 2
LED 4
LED 5
LED 6
LED 3
LED 7
SCRs Disable
No SCR Fault
SCR Temp OK
FSB Ready
No SCR Short
Open FSB
FSB Open
Figure 7
-
13: 2200 A and 4200 A Utility
Disconnect Status LEDs
LED (Top to
bottom)
Name
Condition when LED is illuminated
LED 1
SCRs Disable
The SCRs have received a signal from the master controller to
switch off. This only occurs during a discharge.
LED 2
No SCR Fault
The SCRs are firing correctly (feedback from SCR firing PCB).
When there is an SCR firing fault this LED will switch off and
event code 93 will be recorded in the event log. When the SCRs
are intentionally disabled by the master during a discharge the
LED will switch off, but no event will be recorded in the event
log.
LED 4
SCR Temp OK
The SCR heat sink 90°C sensors indicate the heat sink
temperature is less than 90°C. When the sensors indicate over
90°C this LED will switch off and event code 145 will be
recorded in the event log.
LED 5
Not Used
(900 A UD)
LED 5 is not used for small PCS100 UPS-Is with 900A UD.
FSB Ready
(2200 A/4200 A UD)
The FSB is ready to operate. When the FSB is not ready the LED
will switch off and event code 221 will be recorded in the event
log.
Summary of Contents for PCS100 UPS-I
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