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SCS Series Manual —
P/N 15712:L 7/18/16
115
Dedicated Smoke Control System Wiring Diagrams
Ratings and Wiring Diagrams
Figure 5.7 Motorized Damper Control
Dedicated System - FSCS Switch Group Type3
Figure 5.7 depicts a motorized damper in a dedicated system with the capability of
CLOSED
control and verification of the
OPEN
and
CLOSED
state, switch group type 3. In the above configuration, the CON
OFF⁄CL
CM is activated. The CON
OFF⁄CL
CM controls a normally closed con-
tactor for the damper open power line and a normally open contactor for the damper close power. When the CON
OFF⁄CL
CM is activated, the
normally closed contactor is opened and the normally open contactor 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. (When the damper is in the
open position, the damper open limit switch is closed.) The VER
OFF⁄CL
MM monitors when the damper closed limit switch is
CLOSED
. In this
case the VER
OFF⁄CL
MM is activated and the VER
ON⁄OP
MM is deactivated because the damper is
CLOSED
.
Damper
Open
Power
N/O
COM
Damper
Closed
Power
AC
MOTOR
DAMPER
CLOSED
Limit Switch
for open
position
1a listed
contactor
1b listed
contactor
Power Source
Listed
24 VDC
Power Source
SLC Loop
ELR-47K
(use 3.9K listed ELR with FZM-1)
FCM-1
VER
ON⁄OP
MM
(activated)
CON
OFF/CL
CM
(activated)
D
M
O-
df
3
-f
s
-2
.w
mf
FMM-1
VER
OFF⁄CL
MM
(deactivated)
FMM-1
N/O
COM
Limit Switch
for closed
position
Power Return
*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.