Installation Instructions

- 2 - MOM5 Sub-Assembly
LED Diagnostic Table:
LED ON OFF
Power (Green) Normal operation. Loss of power to MOM5.
Trigger (Green) MOM5 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
This circuit is supervised by a 2.2K EOL resistor. Initiating a short or open will cause
power to be dropped to all terminals marked Pos. (+) DC output (stand-by) and supply
power to all terminals marked Pos (+) DC output (alarm).
Input Neg (–),
Pos (+)
Applying voltage to terminals marked Neg (-) input Pos (+) FACP signaling output in
polarity shown will yield the same results as initiating trigger (mentioned above).
Neg (–) 1 through 5 Supplies constant negative (-) voltage.
Pos (+) DC output (alarm) Supplies positive (+) voltage when dry input or fire alarm (wet) trigger input.
Pos (+) DC output
(stand-by)
Supplies positive (+) voltage in normal condition. Power is removed when either
input trigger is activated.
NC, C, NO
Dry output
When the MOM5 is triggered terminals marked [C and NO] will open and the terminals
marked [C and NC] will close. This output is used to trip auxiliary devices. e.g. HVAC
Shutdown, Elevator Recall etc.
NC, C, NO
Power Fail
Form “C” contacts used for signaling when no voltage is present at – DC input +
terminals. Under normal conditions, terminals marked [NO and C] are open, [NC and C]
are closed. An occurance of trouble condition causes terminals marked [NO and C] to close
and terminals marked [NC and C] to open.
Typical Application Diagrams:
Fig. 1 MOM5 module shown with wet and/or dry MOM5 module shown with wet and/or dry normally open
normally closed trigger inputs (Non-Latching): trigger inputs (Non-Latching):
Fig. 2 - Two (2) or more MOM5 modules shown with wet and/or dry normally closed trigger inputs (Non-Latching):
(+)
(--- )
DC VOLTAGE INPUT FROM FACP
SIGNALING OUTPUT OR ACCESS
CONTROL DEVICE
NORMALLY OPEN (NO)
INPUT FROM FACP OR
ACCESS CONTROL DEVICE
TRIGGER
-- INPUT +
EOL 2.2K
(+)
(--- )
DC VOLTAGE INPUT FROM FACP
SIGNALING OUTPUT OR ACCESS
CONTROL DEVICE
NORMALLY OPEN (NO)
INPUT FROM FACP
OR ACCESS CONTROL DEVICE
TRIGGER
-- INPUT +
EOL 2.2K
TO TRIGGER INPUT
OF NEXT MOM5
NC C NO
DRY OUTPUT
TRIGGER
LED
POWER
ON LED
NC C NO
POWER FAIL
TRIGGER
-- INPUT +
(+)
(--- )
DC VOLTAGE INPUT FROM FACP
SIGNALING OUTPUT OR
ACCESS CONTROL DEVICE
NC C NO
TRIGGER
LED
DRY OUTPUT POWER FAIL
POWER
ON LED
NC C NO
TRIGGER
-- INPUT +
EOL 2.2K
NORMALLY CLOSED (NC)
INPUT FROM FACP OR
ACCESS CONTROL DEVICE
EOL 2.2K