Operating Instructions Chapter 3
C 4000 Standard/Advanced
8 009 861/OE59/19-11-04 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
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Product description
Limits of cascading
$ The maximum protective field width must be guaranteed for each individual system!
$ The maximum total number of beams must not exceed 480 beams in non-coded
operation, and a maximum of 405 beams in coded operation.
$ The maximum cable length between two cascaded systems must not exceed 3 metres.
With the exception of the last guest, for cascading you will require devices with an exten-
sion connection. It is worthwhile choosing devices with an extension connection because
the extension connection provides additional possible connection methods and facilitates
a significant reduction in the wiring effort.
3.3 Examples of range of use
The safety light curtain C 4000 operates correctly as a protective device only if the follow-
ing conditions are met:
$ The control of the machine must be electrical.
$ The dangerous state of the machine must be transferable at any time into a safe state.
$ Sender and receiver unit must be so mounted that objects penetrating the hazardous
area are safely identified by the C 4000.
$ The restart button must be fitted outside the hazardous area such that it cannot be
operated by a person working inside the hazardous area. When operating the reset
button, the operator must have full visual command of the hazardous area.
$ The statutory and local rules and regulations must be observed when installing and
using the device.
Recommendation
Fig. 2: Hazardous poin
protection using a safety light
curtain C 4000
(left)
Fig. 3: Hazardous area
protection using a safety light
curtain C 4000
(right)
Fig. 4:
ccess protection
using a safety light curtain
C 4000
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