Potter Nohmi MOM-4 Instructions

description

The MOM-4 module provides a programmable source of power to
control and operate output devices including notification appliances
and releasing devices. Additionally, it continuously supervises wiring
connected to terminals OUT+, OUT- for open or short circuits and 24+
and 24- when 24VDC is applied.
MOM-4 employs one red LED to indicate the status. In normal condi-
tion, the LED flashes. When the output is activated, the LED will turn
on constantly. In case of trouble, the LED will turn off.
Since the system allows maximum 13 LEDs on devices to turn on
constantly, if system already has 13 lighted LEDs on devices, MOM-
4 will not turn on the LED and keep flashing even if the output of
MOM-4 is activated.

installation

Figure : Installation into the compatible electrical box
Potter Electric Signal Company, LLC • St. Louis, MO • Cust Service: 866-956-1211 • Tech Support: 866-240-1870 • Canada: 888-882-1833 • www.pottersignal.com
PRINTED IN USA
MOnitOred Output MOdule

Features

• 24 VDC Monitored Output Control
• 5.1k ohm EOL
• NAC or Releasing Control
• LED indicates activation of module
• All terminals are power limited
• Listed with Potter/Amseco®, Gentex®, & Cooper Wheelock®
sync modules and devices
There is a possibility that the relay in MOM-4 module has been
accidentally set to "latched" position during shipment. THE
SIGNAL LINE CIRCUIT (SLC) MUST BE CONNECTED
BEFORE CONNECTING 24VDC. If power is applied to the
terminals 24+ and 24- and the relay is latched, a short circuit of
wires connected to terminals OUT+, OUT- may damage the module.
If this should occur, the performance of the Addressable Module
must be verified.
For more information refer to 5403556, PFC-8060/8500 Installation,
Operation and Programming Manual.
SLC loop wiring (signal line circuit) is power limited. Power supply
for terminals 24+ and 24- must be power limited, so that the wiring
for terminals OUT+, OUT- is power-limited. All terminals should be
wired in accordance with the requirements of NFPA 70 (NEC) and
NFPA 72 (National Fire Alarm Code). Failure to follow the wiring
diagrams in the following pages will cause the system to not operate
as intended. For further information, refer to the control panel
installation instructions.
MKT. #8830003 - REV A
3/11
MOM-4
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