Operating instructions
Non-Contact Safety System CES-AZ-AES-…
14
(Translation of the original operating instructions) 2104766-13-08/20
8.5. Connection example for CES-AZ-AES-02B
24 VDC
GND
-F1
0V
TST
-F2
UB
CES-AZ-AES-02B
104775
J1 J2 SH1
O1
Read-
head
1
H11
Trans-
ponder
O2
H12
EUCHNER
SH2
-V1
Read-
head
2
H21
DIA
Trans-
ponder
H22
-K3
A1
A2
23 24
-V2
13 14
-K4
A1
A2
feedback loop
Y1
Y2
-K4
21
22
-K3
21
22
S
Start
L1
-K3
13
14
-K4
13
14
M
3
~
-M1
L2
23
24
23
24
L3
33
34
33
34
K2
+
K1
+
Important!
To achieve category 4 according to EN ISO 13849-1, it is necessary to monitor the downstream
contactors (here: contacts on -K3 and -K4 in the feedback loop).
This example shows only an excerpt that is relevant for the connection of the CES system. The example
illustrated here does not show complete system planning. The user is responsible for safe integration
into the overall system.
If only one enable path is to be used for control (e.g. of downstream contactors), failures involving a short circuit between
the contacts on the enable path and, for example, the power supply must be excluded.
With reference to EN ISO 13849-2 Table D.5, this exclusion can be provided if
Ì
the cables are inside an electrical installation space and
Ì
the enclosure meets the related requirements (see EN 60204-1 or IEC 60204-1).