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SCS Series Manual —
P/N 15712:L 7/18/16
63
Configuration
The SCS⁄SCE
NFS2-3030 with or without NCA-2: Annunciator points 33-64 are not programmed to an unused output point and the
SCE-8 is not connected. During this condition, an annunciator trouble will be displayed at the control panel. (EXPANDER
CONFIG)
•
Dipswitch positions 1 - 6 are OFF (factory default setting). All green LEDs will flash rapidly and the piezo will sound. During this
condition an expander trouble will be displayed at the control panel. (DIP SW DEFAULT)
•
For SCS v4.0 or higher (requires NFS2-3030 and/or NCA-2 v.21 or higher); Dipswitch position 6 (HVAC/FSCS) does not match the
panel configuration in ACS programming (HVAC/FSCS). (MODE CONFIG)
Pressing the Local Acknowledge/Lamp Test switch during any of these conditions will silence the piezo.
FSCS Toggle Switch Group Trouble
A toggle switch group trouble condition applies to a single toggle switch and its four annunciator points. FSCS group trouble conditions are
defined as follows:
•
A trouble condition exists for one or more of the four devices programmed to annunciate at that specific toggle switch. The piezo
sounds and the respective trouble LED will blink once, followed by a pause, then repeat until acknowledged. (DEVICE TROUBLE)
Example: Open circuit or loss of communication with a module.
•
For AM2020/AFP1010 only: Annunciator software type ID does not match the associated toggle switch function (See Tables 3.5 and
3.13). During this condition an external trouble is annunciated at the control panel.
Example: A1P1 has a software type ID AMON but should be ACON since the first annunciator point associated with the
first toggle switch in the SCS⁄SCE is expected to perform a control function (i.e. AMON programmed for a control point).
•
NFS2-3030, or NFS-320, or NFS2-640, or NFS2-3030 with NCA-2: (Similar to the AM2020/AFP1010). Annunciator point is not
mapped to a device of the proper type ID. The piezo sounds and the respective trouble LED will blink twice, followed by a pause, then
repeat until acknowledged. During this condition an external trouble is annunciated at the control panel. (DEVICE MISMATCH)
Example: A1P1 is mapped to point N1L1M1 (monitor) but should be mapped to a valid “control” module.
•
Annunciator point activity or trouble occurs for an annunciator point which was not programmed to be active according to the group
type. The piezo sounds and the respective trouble LED will blink three times, followed by a pause, then repeat until acknowledged.
During this condition an external trouble is annunciated at the control panel. (DIP SW MISMATCH)
Example: A group is programmed as type 5 (CON
ON⁄OP
and VER
ON⁄OP
), but the off control point indicates an invalid
reply. Check group programming and annunciator point mapping.
•
The expected smoke control state is not reached within the specified time after activation. The piezo sounds and the respective trouble
LED will blink continuously until acknowledged. During this condition, an external trouble is annunciated at the control panel. (Default
trouble delay time is 90 seconds; SCS V4.0 is programmable between 0 –180 seconds.) (TIME OUT)
Example: A switch is placed in the ON position, its corresponding control module activates, but the monitor module
monitoring the point does not report a change of state within the specified delay time.
FSCS toggle switch group troubles are acknowledged by pressing the Local Acknowledge/Lamp Test switch, at which time any flashing
trouble LEDs will turn on steady and the piezo will turn off. The LED group trouble codes may be reset by pressing the Local Acknowl-
edge/Lamp Test switch for at least five seconds. When the trouble is cleared, the respective trouble LED will turn off. The piezo shall
resound for any subsequent trouble conditions.
Dedicated System Operation
When a system functions only to control smoke (equipment is not linked to building HVAC controls), the system is classified as Dedicated.
The FACP must provide automatic control for a dedicated system. Dedicated Systems require weekly automatic testing by the FACP. This
can be accomplished with the AM2020/AFP1010, and NFS2-3030 by using the time (TIM) operator of Control-By-Event (CBE) Program-
ming, or with the NFS-320/NFS2-640 by setting Special Zones F5 or F6 to the proper timing and including the zone(s) in the CBE equations.
For more information on Control-By-Event operators and programming, refer to the NFS2-3030, NFS2-640 or NFS-320 programming doc-
umentation, the
NCA-2 Manual
, or the
AM2020/AFP1010 Manual
. In Dedicated Systems, the AM2020/AFP1010 must be programmed for
receiving unit operation.
Equations must be written to do all of the following steps for all control points present within a toggle switch group type when a
CON
ON⁄OP
CM is a member of that group (if only an CON
OFF⁄CL
CM is present, skip these four steps):
1.
Program the FACP using CBE equations to establish the automatic control state (when the Dedicated System is not controlling smoke)
of all control points.
2.
Program the FACP using CBE equations which are activated during a fire. Activate/deactivate all control points as required to help
contain smoke.
3.
Program the FACP to activate the CON
ON/OP
CM (if normally deactivated when the Dedicated System is not controlling smoke) or
deactivate the CON
ON/OP
CM (if normally activated) for five minutes once per week using a CBE equation.