Mounting and installing extinguishing control panels
Card cage connections (1 sector exting.) FCA2046
6
66 | 248
Monitored output type LOAD
Use Valves, etc.
Monitoring polarity Normal polarity
Monitoring Only in inactive state
Calibration Yes
2-way monitoring Permitted
Total load resistance, incl. cable ● 14…1000 Ω, max. 2 A
● 14…780 Ω with 2-way connection box
Max. cable resistance 80 Ω, both lines
Monitoring tolerance ● ± 33 % at ≤ 200 Ω
● ± 16 % at > 200 Ω
● ± 2.5 % dynamic
A maximum of 10 electromagnetic valves can be switched in parallel.
In some applications, valves are used with blocking diodes as polarity protection.
Calculation of the cable resistance:
Step 1: calculate the critical cable resistance
RcableCrit = (24.8 V – UloadMin) / ILoadMin
RcableCrit
Critical cable resistance [Ω] at which a fault is still displayed and
the voltage at the load is still supplied to a sufficient extent.
ULoadMin Minimum voltage [V] at load, as per data sheet.
ILoadMin Minimum current [A] due to load at min. voltage, as per data sheet.
OUT_MON+
OUT_MON-
actuator
OUT_MON_+
OUT_MON_-
Rcable(Rbox)
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