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SCS Series Manual —
P/N 15712:L 7/18/16
137
Non-dedicated Smoke Control System Wiring Diagrams
Ratings and Wiring Diagrams
Figure 5.28 Motorized Damper Control
Non-dedicated System - FSCS Switch Group Type 6
Figure 5.28 depicts a motorized damper in a non-dedicated system with the capability of
OPEN
control and verification of the
OPEN
and
CLOSED
state, switch group type 6. In the above configuration, the CON
ON⁄OP
CM is activated. The CON
ON⁄OP
CM controls two contacts: 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 contactor is opened (cutting any power supplied by the EMS to the damper open power
line), and the normally open portion of the dual contactor 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
OFF⁄CL
MM monitors the
CLOSED
position of the damper closed
limit switch and the VER
ON⁄OP
MM monitors the
CLOSED
position of the damper open limit switch. In this case the VER
OFF⁄CL
MM is deacti-
vated and the VER
ON⁄OP
MM is activated because the damper is
OPEN
.
Power Source
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
DM
O
-nf6
a
-fs-2
.wmf
SLC Loop
CON
ON/OP
CM
(activated)
VER
OFF/CL
MM
(deactivated)
Limit Switch
for closed
position
Damper
Closed
Power
AC
MOTOR
DAMPER
OPEN
FCM-1
FMM-1
VER
ON/OP
MM
(activated)
N/O
COM
Limit Switch
for open
position
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.