Siemens FC924 User Manual

FS20 Marine Fire Detection Control Panel
65
Siemens Industry, Inc. A6V10519176_enUS_b
Building Technologies Division
12.5 Relays
Common Alarm Relay
The alarm relay changes state whenever a fire alarm is detected. In degrade mode,
the alarm relay will still activate in case of a fire, without processor control.
Common Trouble Relay
The trouble relay changes state whenever a system trouble is detected. In degrade
mode, the trouble relay will still activate without processor control.
Common Supervisory Relay
The supervisory relay changes state whenever a supervisory trouble is detected. In
degrade mode, the supervisory relay will not function.
Programmable User Relay
The user programmable relay changes state depending on the configuration set in the
Engineering tool set. In degrade mode, the user relay will not activate.
12.5.1 Wiring Specs
1
6
7
12
C NCNO
TroubleAlarm
User
Supervisory
C NCNO
C NCNO C NCNO
12.5.2 X1101 Relay Terminal Block
Pin
Designation
Description
1 C Common contact common alarm relay
2 NC Normally closed contact common alarm relay
3 NO Normally open contact common alarm relay
4 C Common contact common trouble relay
5 NC Normally closed contact common trouble relay
6 NO Normally open contact common trouble relay
7 C Common contact common supervisory relay
8 NC Normally closed contact common supervisory relay
9 NO Normally open contact common supervisory relay
10 C Common contact programmable relay
11 NC Normally closed contact programmable relay
12 NO Normally open contact programmable relay
Admissible cable cross-section: 1 x 12…18 AWG or 2 x 16…18 AWG
NO/NC (normally open / normally closed) relates to the fire detection system's normal status.

Siemens FC924 Specifications

General

Brand	Siemens
Model	FC924
Category	Control Panel
Language	English