Operating Instructions Chapter 3
M4000 Adv., Adv. A/P, Area
8010797/PA53/27-06-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
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Product description
3.2.3 Cascading
Cascading can only be realised with the M4000 Area 60 multiple light beam safety device.
On cascading with a C4000 safety light curtain, the M4000 Area 60 can be connected in
series, e.g. to realise safe point-of-operation guarding for hazardous point protection. To
protect two planes, two device pairs — one safety light curtain and one multiple light beam
safety device (as a terminal device) can be connected in series. The device connected to
the control cabinet is the main sensor, called Host. The subsequent sensor is called Guest.
Benefits of cascading
• No additional external circuitry required.
• Resolution and monitored areas (height or length) of the individual systems can differ.
Limits of cascading
• The maximum width of the monitored area must not be exceeded by any single system!
• The maximum cable length between two cascaded systems must not exceed 3 metres.
3.3 Application examples
3.3.1 Access protection
Note
Fig. 4: Cascading of C4000
and M4000 Area 60
Fig. 5: Access protection with
an M4000 Advanced multiple
light beam safety device
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