
SCS Series Manual —
P/N 15712:L 7/18/16
113
Dedicated Smoke Control System Wiring Diagrams
Ratings and Wiring Diagrams
5.3.2 Motorized Dampers
Figure 5.5 Motorized Damper Control
Dedicated System - FSCS Switch Group Type 1
Figure 5.5 depicts a motorized damper in a dedicated system with the capability of
CLOSED
control and verification of the
CLOSED
state,
switch group type 1. In the above configuration, the CON
OFF⁄CL
CM is activated. The CON
OFF⁄CL
CM controls a normally closed contact for
the damper open power line and a normally open contact for the damper close power. When the CON
OFF⁄CL
CM is activated, the normally
closed contact is opened and the normally open contact is closed, thus supplying power to close the damper. When the damper completely
closes, the damper closed limit switch is
CLOSED
, indicating that the damper is in the
CLOSED
position. The VER
OFF⁄CL
MM monitors the
CLOSED
position of the damper closed limit switch. In this case the VER
OFF⁄CL
MM is activated because the damper is
CLOSED
.
Power Source
1a listed
contactor
Damper
Open
Power
ELR-47K
(use 3.9K listed ELR with FZM-1)
N/O
COM
Power
Return
Listed
24 VDC
Power Source
FMM-1
FCM-1
DM
O-
df1
-f
s
-2
.wm
f
SLC Loop
1b listed
contactor
CON
OFF/CL
CM
(activated)
VER
OFF/CL
MM
(deactivated)
Limit Switch
for closed
position
Damper
Closed
Power
AC
MOTOR
DAMPER
CLOSED
*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.