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116
SCS Series Manual —
P/N 15712:L 7/18/16
Ratings and Wiring Diagrams
Dedicated Smoke Control System Wiring Diagrams
Figure 5.8 Motorized Damper Control
Dedicated System - FSCS Switch Group Type 4
Figure 5.8 depicts a motorized damper in a dedicated system with the capability of
OPEN
control and verification of the
CLOSED
state, switch
group type 4. In the above configuration, the CON
ON⁄OP
CM is activated. The CON
ON⁄OP
CM controls a normally open contactor for the
damper open power line and a normally closed contactor for the damper close power line. When the CON
ON⁄OP
CM is activated, the nor-
mally closed contactor is opened and the normally open contactor is closed, thus supplying power to open the damper. When the damper
completely opens, the damper open limit switch is
CLOSED
, indicating that the damper is in the
OPEN
position, and the damper closed limit
switch is
OPEN
. The VER
OFF⁄CL
MM monitors the
CLOSED
position of the damper closed limit switch. In this case the VER
OFF⁄CL
MM is
deactivated because the damper is
CLOSED
.
Damper
Open
Power
Damper
Closed
Power
AC
MOTOR
DAMPER
OPEN
1b listed
contactor
1a listed
contactor
Power Source
Listed
24 VDC
Power Source
SLC Loop
ELR-47K
(use 3.9K listed ELR with FZM-1)
FCM-1
CON
ON⁄OP
CM
(activated)
DM
O-d
f4
-fs-
2
.wmf
Power Return
VER
OFF⁄CL
MM
(activated
FMM-1
N/O
COM
Limit Switch
for closed
position
*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.