136 SCS Series Manual — P/N 15712:L 7/18/16
Ratings and Wiring Diagrams Non-dedicated Smoke Control System Wiring Diagrams
Figure 5.27 Motorized Damper Control
Non-dedicated System - FSCS Switch Group Type 5
Figure 5.27 depicts a motorized damper in a non-dedicated system with the capability of
OPEN control and verification of the OPEN state,
switch group type 5. In the above configuration, the CON
ON⁄OP
CM is activated. The CON
ON⁄OP
CM controls two contactors: a normally
closed contact for the damper closed power line, and a dual normally open/ normally closed contact for the damper open power line. When
the CON
ON⁄OP
CM is activated, the normally closed contact is opened (cutting any power supplied by the EMS to the damper closed power
line), the normally closed portion of the dual contact is opened (cutting any power supplied by the EMS to the damper open power line), and
the normally open portion of the dual contact is closed, thus supplying power to close the damper. When the CON
ON⁄OP
CM is deactivated,
the EMS is free to control the damper. The EMS is currently being overridden by the CON
ON⁄OP
CM.
When power is supplied to the damper open power line, the damper opens. When the damper completely opens, the damper open limit
switch is
CLOSED, indicating that the damper is in the OPEN position. The VER
ON⁄OP
MM monitors the CLOSED position of the damper open
limit switch. In this case the VER
ON⁄OP
MM is activated because the damper is OPEN.
Damper
Open
Power
N/O
COM
Damper
Closed
Power
AC
MOTOR
DAMPER
OPEN
Limit Switch
for open
position
Power Source
Listed
24 VDC
Power Source
SLC Loop
ELR-47K
(use 3.9K listed ELR with FZM-1)
FMM-1
FCM-1
VER
ON⁄OP
MM
(activated)
CON
ON/OP
CM
(activated)
DMO-nf5a-fs-2.wmf
Power Return
1b, 1a listed contactor
1b listed
contactor
Energy
Management
System
*If the SLC device
does not match the
one in this figure,
refer to the SLC
manual appendix,
which contains
wiring conversion
charts for type V
and type H
modules.
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