Siemens FS720 - Page 60

Mounting and installing extinguishing control panels
Card cage connections (1 sector exting.) FCA2046
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Building Technologies
A6V10210390_m_en_
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Fire Safety
2018
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08
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29
INPUT_MON_TYPE_2: ''Loss of agent' closed during pressure'
● ''Loss of agent' closed during pressure'
● Maximum line resistance 160 Ω (pressure gauge, cable, and plug)
● The maximum number of pressure gauges is calculated according to the max.
line resistance
Figure 34: MON_INPUT_TYPE, ''Loss of agent' closed during pressure'
Resistance range Input status
0000…0249 Ω SHORT (Fault)
0250…0519 Ω QUIET
0520…0799 Ω QUIET
0800…1099 Ω QUIET
1100…1499 Ω QUIET
1500…3999 Ω ACTIVE 1
≥4000 Ω OPEN (Fault)
INPUT_MON+
1
K
2
E
O
L
INPUT_MON-
Manometer
normally closed
under pressu
re
N
3
K
3
1 2 3