Siemens FC924 User Manual

FS20 Marine Fire Detection Control Panel
70
Siemens Industry, Inc. A6V10519176_enUS_b
Building Technologies Division
Detector Circuits
Terminal strips X1401 circuit card 1, circuit 1
X1402 circuit card 1, circuit 2
X1801 circuit card 2, circuit 3
X1802 circuit card 2, circuit 4
Output voltage 24VDC, filtered
Number of integrated circuit cards 2
Output current per integrated
circuit card
Max. 500 mA
Addressable devices per
integrated circuit card
Max. 252
Connectable circuits per integ
rated
circuit card
2 style 6 or 4 style 4 (mixed variants are possible)
Protocol Network
Circuit resistance Max. 180 Ω
Capacity 500 nF per circuit
Cable types All (twisted recommended)
For specifications detail, refer to the following
documents:
 A6V10315013 for Desigo
Connectable devices See List of compatibility
Monitored for  Ground fault
 Short circuit
 Open circuit
 Circuit capacitance
Design  Short-circuit-proof
 Voltage surge protection
 Open circuit
 Power limited
Relay Contacts
Plug strip X1201
Design  Relay output
 Break or make contact
 Nonpower limited
 Alarm and trouble active in degraded mode
operation
Switching voltage 30VDC or AC 120VAC ohmic
Switching current 5 A, Max.
Connection Terminals
Inputs, outputs and detector
circuits:
 Design Plug-in screw terminals
 Admissible cable cross-
section
Once 12...18 AWG or twice 16...18 AWG
18 gauge twisted pair, shielded cable.

Siemens FC924 Specifications

General

Brand	Siemens
Model	FC924
Category	Control Panel
Language	English