MOM5C
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LED Diagnostic Table:
LED
ON
OFF
Power (Green)
Normal operating condition.
Power failure.
Trigger (Green)
Input is triggered (alarm condition).
MOM5 in stand-by (non-alarm condition).
Outputs (Red)
Output tripped due to a short circuit or
overload condition.
Normal operation.
Terminal Identification:
Terminal Legend
Function/Description
– DC INPUT +
12VDC or 24VDC from power supply.
TRIGGER
Dry normally open [NO] or normally closed [NC] supervised (2.2K EOL resistor)
input trigger. A short or open circuit will transfer power from terminals marked
[POS. (+) DC OUTPUT (STAND-BY)] to terminals marked [POS (+) DC OUTPUT
(ALARM)].
– INPUT +
Wet (5-30VDC) input trigger. Applying voltage to these terminals in the polarity
shown will transfer power from terminals marked [POS. (+) DC OUTPUT (STAND-
BY)] to terminals marked [POS. (+) DC OUTPUT (ALARM)] (e.g. fire alarm con-
trol panel indications circuit).
NEG. 1
THROUGH NEG. 5
Supplies constant negative (–) voltage.
POS. (+) DC OUTPUT
(ALARM) 1-5
Supplies positive (+) voltage when dry trigger input or fire alarm wet trigger
input is applied.
POS. (+) DC OUTPUT
(STAND-BY) 6-10
Supplies positive (+) voltage in normal condition. Power is removed when dry trig-
ger input or fire alarm wet trigger input is applied.
NC, C, NO
DRY OUTPUT
When the MOM5 is triggered, the terminals marked [C and NO] will open and the
terminals marked [C and NC] will close. This output is used to trigger auxiliary
devices. (e.g. HVAC Shutdown, Elevator Recall etc.). Contact rating 1A @ 28VDC.
NC, C, NO
POWER FAIL
Form “C” contacts used for reporting no voltage is present at [– DC INPUT +]
terminals. Under normal conditions terminals marked [NO and C] are open,
[NC and C] are closed. A loss of power causes terminals marked [NO and C] to close
and [NC and C] to open. Contact rating 1A @ 28VDC.
Summary of Contents for MOM5C
Page 7: ...MOM5C 7 Notes...