EUCHNER CES-AZ-UBS-01B (Multicode) - Manual (Page 12)

Operating Instructions Safety System CES-AZ-UBS-01B
12
Connection examples
CES-AZ-UBS-01B with read head CET
Important!
To achieve category 3 according to EN ISO 13849-1, it is necessary to monitor
the downstream contactors (here contacts of -K3 and -K4 in the feedback loop).
This example shows only an excerpt that is relevant for connection of the CES
system. The example illustrated here does not show complete system planning.
The user is responsible for safe integration in 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).
This example shows only an excerpt that is relevant for connection of the CES
system. The example illustrated here does not show complete system planning.
The user is responsible for safe integration in the overall system.
24VDC
GND
-F1
Ac
tuato
r
-S1 CET1-AX-LRA-00-50X-SA
095735
EUCHNER
Re
ad
-
he
a d
8
-A1
24VDC
24V
0V
3
CES-AZ-UBS-01B
100412
SH1
2
TST
H11
EUCHNER
1
OUT
H12
6
7
ERR
LED1
GND
SH1
K1
+
H11
4
LED2
5
K2
+
H12
13
14
-V1
24V
-F2
23
24
-K3
-V2 -K4
L1
M
3 ~
-M1
L2 L3
11
12
21
22
feedback loop
PLC