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1.509.926.6000 :: telect.com
6
Dual 150A 4/4 TPA/GMT Fuse Alarm Panel
Power
:: 009-8005-3404H
16. Make sure the TPA and GMT fuse positions are
either empty or contain dummy fuses (phoney,
inoperative all plastic slugs).
If necessary, pull out the TPA carrier about an inch
from its holder to disengage the TPA fuse,
as shown in Figure 6.
17. Enable the fuse or breaker at the PDU to turn on
Feed A to Side A of the panel and then measure
the voltage and check polarity at input connectors
of panel. Also, check that
• INPUT POWER A
LED on front of panel turns on
(green). (See Figure 7 for location.)
• All other LEDs must be off.
18. With the
INPUT POWER A
lit (normal operation)
— but with all other LEDs off (failure operation)
— test the power-fail relay contacts at the rear
of the panel:
• Expect an open circuit (00Ω) between Terminals
C
and
NC
.
• Expect continuity (0Ω) between Terminals
C
and
NO
.
19. Also, test the fuse alarm relay contacts at the
FUSE
ALARM
terminals on the rear of the panel.
• Expect continuity (0Ω) between Terminals
C
and
NC
.
• Expect an open circuit (00Ω) between Terminals
C
and
NO
.
20. Repeat Steps 17 through 19 to power up Side B.
21. With all
INPUT POWER
LEDs lit (normal operation),
test power-fail relay and contacts at
PWR FAIL
terminals on the rear of the panel.
• Expect continuity (0Ω) between Terminals
C
and
NC
.
• Expect an open circuit (00Ω) between Terminals
C
and
NO
.
22. Make sure none of the fuse positions are engaged
or contain operable fuses.
Figure 6 - Disengaging a TPA Fuse Holder
Figure 7 - Alarm Indicators
C.GND
NO
C
NC
NO
C
NC
FUSE ALARM
PWR FAIL
Figure 8 - Alarm Terminals
