Siemens FS720 - Pin Assignments

Installing, exchanging and connecting modules
Fire terminal board
7
94 | 248
Building Technologies
A6V10210390_m_en_
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Fire Safety
2018
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08
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29
Mounting steps
1. Mount the fire terminal board (2) with the six fixing screws (1) to the screw
bushings (3) that are embedded in the rear panel.
2. Wire up the fire terminal board according to the following pin assignment.
3. Re-install any modules that you may have had to remove.
7.4.2 Pin assignments
7.4.2.1 X1 supply
The optional power supply or the external 24 V supply is connected to supply input
X1.
Figure 46: FTI2001-A1, supply input for external supply or fitted power supply (optional)
Pin Designation Description
10 VSYS– Supply input from the power supply (–)
9 VSYS– Supply input from the power supply (–)
8 VSYS+ Supply input from the power supply (+)
7 VSYS+ Supply input from the power supply (+)
6 3SRC– Input for third supply source (–) [FR]
5 3SRC+ Input for third supply source (+) [FR]
4 COMMON Ground
3 #MAINS Message input from the power supply: Mains failure
2 #CONV Message input from the power supply: Converter fault
1 #BATT Message input from the power supply: Battery fault
Admissible cable cross-section: 0.2…2.5 mm²
FT724
Fire terminal board
U
Sys
X1