Operating Instructions
Non-Contact Safety Switch CES-I-BR-.-C07-…
14
(translation of the original operating instructions) 2510145-05-08/21
10.2. Series connection with Y-distributors
The series connection is shown here based on the example of the version with plug connector M12. The switches are con-
nected one behind the other with the aid of pre-assembled connecting cables and Y-distributors. If a safety door is opened
or if a fault occurs on one of the switches, the system shuts down the machine.
10.2.1. Maximum cable lengths
Switch chains are permitted up to a maximum overall cable length of 200 m taking into account the voltage drop as a result
of the cable resistance (see table below with example data and case example). The cable length between two switches is
limited to 100 m.
SPS
PLC
l
1
l
2
l
max
=200 m
l
n
u
min
= 24 V
5 x 0,34 mm
2
5 x 0,34 mm
2
5 x 0,34 mm
2
CES-I-BR # n
CES-I-BR # n-1
CES-I-BR # 1
i
out
n
Max. number of switches
I
FO1A
/I
FO1B
(mA)
Possible output current per channel FO1A/FO1B
l
1
(m)
Max. cable length from the last switch to the
control system
0.34 mm²
5
10
100
25
100
50
80
100
50
200
25
6
10
100
25
90
50
70
100
50
200
25
10
10
70
25
60
50
50
100
35
200
20
Contact EUCHNER in the following cases:
Ì
If you connect more than 10 switches in series.
Ì
If you plan to use a different cable design (cross-section, material, etc.).