48 NFS-320/E/C Installation Manual — P/N 52745:M2 7/1/14
Applications Releasing Applications
Critical Requirements. When connecting a releasing device to the FCM-1-REL module, note
the following:
1. See “Power Considerations” on page 52 for information on monitoring 24 VDC power.
2. Do not T-tap or branch a Style Y or Style Z circuit.
3. Only one (1) 24V solenoid or two (2) 12V solenoids in series can be connected to the FCM-1-
REL.
4. Do not loop wiring under the screw terminals. Break the wire run to provide supervision of
connections.
5. All applications using the FCM-1-REL are power-limited:
a. Program the releasing circuit for Type Code REL CKT ULC or RELEASE CKT.
b. Circuits are supervised against opens and shorts.
6. Refer to the NFS-320/E/C Programming Manual for instructions on setting the Soak Timer.
The FCM-1-REL module must be programmed with the correct releasing type code listed in the
NFS-320/E/C Programming Manual.
4.7.7 Connecting an NBG-12LRA Agent Release-Abort Station
SLC loop to
FACP
FCM-1
FRM-1
FMM-1
FMM-101
Black
Red
Yellow
Violet
Black
Red
Non-resettable +24 VDC
from main power supply
Manual Abort
Manual Release
Normal
Release
NBG-12LRA
See Document 51369
for installation details.
ELR mode R-47K
supervised and
power-limited
RedBrown
24 VDC UL-listed
releasing device
C.
N.O.
REL-47K
(use with Type Code
Rel Ckt ULC)
NFS640-NBG12LRAtpH.wmf
System
Common (–)
24 VDC power
from FACP’s
main power supply
N.C.
Power Supervision
Relay (EOLR-1)
N.C. Supervision
Relay Contact
Figure 4.14 Typical Connections for an NBG-12LRA Agent Release-Abort Station
Polarity shown in
an energized
state.
*If the SLC device does
not match the one in this
figure, refer to the SLC
manual appendix, which
contains wiring conver-
sion charts for type V and
type H modules.
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