02/2015
13
TCS TürControlSysteme AG, TCS Hotline Germany: +49 (0) 4194 9881-188
Subject to technical changes.
E-Mail: [email protected], www.tcsag.de
PI_IVH3222-0140_uk 3 A
Length of the line a-b/ M-P
in m
cable diameter
0.6 mm
0.8 mm
loop resistance
in Ω
10
1.28
0.71
20
2.55
1.43
30
3.83
2.14
40
5.10
2.86
50
6.38
3.57
60
7.65
4.29
70
5.00
80
5.71
90
6.43
100
7.14
Principle loop resistance
Measurement loop resistance
None of the devices (AS, IS or FE) should ever be
located more than
8 Ohm
away from the power
supply and control unit (VS).
Rule:
Switch off the 230 V / 50 Hz of the VS.
Install the a-b short-circuit at VS.
Other devices do not disturb the measurement,
they can be connected.
Measure the resistance at a/b of the last IS or
AS.
8 Ohm:
max. 65 m distance AS-VS by 0.6 mm diameter
max. 115 m distance AS-VS by 0.8 mm diameter
AS front-door station
VS power supply and control unit
IS
indoor station
FE
extended function
Repair
!
Repairs have to be carried out only by qualified electricians.
a, b here
short-circuit
