18
SICK MSL
8 007 653/09-04-01 Technical Description • MSL © SICK AG • Safety Systems • Germany • All rights reserved
7 Electrical installation
7 Electrical installation
Electrical connection work may
only be carried out in a voltage
free condition.
7.1 General
Connecting the MSL components
is easy. The sender and receiver
units are connected directly to the
machine control unit. An additional
evaluation unit is not necessary.
The exact cabling requirements are
listed in chapter
9, Technical
specifications.
The machine control unit has a 5-
wire connection to the sender unit
and an 8-wire connection to the
receiver unit.
The maximum cross section of a
conductor is 1.5 mm
2
solid or
1 mm
2
sleeved. Both components
have a plugggable terminal block in
the terminal chamber. Alternatively,
the terminal chamber can be
provided with a pre-prepared con-
nector insert.
Both components are supplied
with a voltage of 24 V DC ± 20 %.
The operating voltage is connected
b 24 V and 0 V.
In accordance with EN 60 204, the
external voltage supply must be able
to bridge a short drop-out 20 ms
(U
min
= 18 V). Suitable power
supplies are available from SICK as
optional accessories (Siemens
6 EW 1 family).