Operating Instructions
Chapter
5
miniTwin2
8013482/YT85/2016-02-23
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
45
Subject to change without notice
Electrical installation
5.2
Cascading
A maximum of three miniTwin2 can be connected in series as “cascade”. For cascaded
systems a system plug with a system connection M12 × 4 + FE (male connector) and an
extension connection M12 × 4 + FE (female connector) is available.
A cascaded system with several miniTwin2 safety light curtains is only configured by the
selection of the system plug (standalone or cascade) and its cabling. No other measures
are necessary.
Use cables as short as possible between the devices in a cascaded system!
The maximum cable length between two cascaded systems must not exceed 3 metres.
Protect the cascaded system against tampering with an optimised cable length or by laying
the cable under a cover.
Tab. 7 shows which system plugs are needed for which device type in a cascaded system.
Device type
System plug for standalone
devices
System plug for cascaded
systems
Host –
H
os
t/
g
ue
st
Guest 1
–
Host –
Guest 1
–
H
os
t/
g
ue
st
/g
ue
st
Guest 2
–
Fasten the screws of the system plugs to a torque of 1 Nm.
Connect the extension connections to the system connections.
Connect the cascaded system to the system connection on the Twin Sticks that are
used as hosts.
Fig. 35: Device connection
and system plug with system
connection and extension
connection
WARNING
Tab. 7: System plug for
cascaded systems
Device connection
System connection
Extension connection
System plug
