EUCHNER CETx-AP-xxx-AH-xxx (Unicode) - Manual (Page 19)

Operating Instructions Safety Switch CET.-AP-...-AH-...
19
Devices for direct connection IP65 field modules
The version CET.-AP-...-SI-... (connection plan B) is optimized for connection to
decentralized peripheral systems, such as the ET200pro series from Siemens.
The devices are assigned parameters and connected like an OSSD (e.g. like light
curtains).
The two 5-pin M12 plug connectors can be connected directly to the sockets of
an IP65 field module (e.g. ET200pro) with the aid of the connection cables on
Page 33. If flying leads are used, connection to IP20 input and output modules (e.g.
ET200s) is naturally also possible.
Important:
Observe the following notes prior to connection:
Ì Use only CET-AP versions that are listed in the ordering table on Page 33.
Ì The operating voltage for the CET-AP must not be clocked. Parameter as-
signment might be required for the input/output modules (see application
example at www.EUCHNER.de, in the area Download » Applications » CET).
Ì Additionally observe notes from the control system manufacturer where nec-
essary.
Safety in case of faults
Ì The operating voltage U
B
and the solenoid voltage U
CM
are reverse polarity pro-
tected.
Ì The contacts OA/OB are short circuit proof.
Ì A short circuit between OA and OB is detected by the switch.
Ì A short circuit in the cable can be excluded by laying the cable with protection.
Fuse protection for power supply
The power supply must be provided with fuse protection depending on the current
required for the outputs. The following rules apply:
Max. current consumption I
max
I
max
= I
UB
+ I
OUT
* + I
OA+OB
(+ I
OUT D
*)
I
UB
= Switch operating current (80 mA)
I
OUT
= Load current of monitoring outputs (max. 50 mA per monitoring output)
I
OA+OB
= Load current of safety outputs OA + OB (2 x max. 200 mA)
* Only on devices with the corresponding monitoring output