Honeywell ACS-8 Installation Instructions Manual page 26

26
Module supply:
Total current consumption of the modules:
Calculation of the maximum line resistance:

Calculation of the maximum possible line length:

Power supply door strike:
Current consumption: 230mA
Calculation of the maximum line resistance:

Calculation of the required cross-section:

Calculation of the number of wires with a wire cross-section of 0.6mm (Ø 0.28mm²):

contactless / proximity reader (026390.10)
4I/2O-module (026592)
display module (027555)
keypad module (027570)
total:
R = Uv
L
I
i = electrical conductivity
L = A x R x i
L
2
R = Uv
L
I
i = electrical conductivity
A = 2 x L
R x i
L
no. of wires =
= 500mV =
570mA
=
= 0.877 x 56m
Ωmm²
2
= 500mV =
230mA
=
= 2 x 24.556m
2.17 Ω * 56m
Ωmm²
0.40mm² =
0.28mm²
Installation Instructions / ACS-8
140mA
230mA
150mA
50mA
570mA
0.877Ω
56m of copper
Ωmm²
= 24.556m
2.17Ω
56m of copper
Ωmm²
= 0.40mm²
1.42 wires ! 2 wires