SICK MSL User Manual

19
SICK MSL
8 007 653/09-04-01 Technical Description • MSL © SICK AG • Safety Systems • Germany • All rights reserved
7.2 Sender unit
The electrical connection diagram
of the sender unit is shown in
fig. 18 .
7.2.1 MCC  test input
The test procedure enables an
inspection of the switching elements.
The sender unit is switched off for
this process. A break contact from
the machine control unit is applied
to the test input (MCC = machine
control contact). The test proce-
dure is triggered when the break
contact is open for at least 100 ms
(
fig. 19 ). The testing must be carried
out at time when there is no
hazardous machine motion.
Fig. 19: Testing the MSL with the MCC – test input
Fig. 20: Conversion of the MSL for 70 m scanning range.
5
6
RW 70 m
+24 V
3 K
Auslieferzustand mit Test
*) n. c. not connected
Fig. 18: Connection diagram for the sender unit: Left, scanning range up to 20 m, right,
scanning range up to 70 m.
MSLS....2
Scanning range up to 20 m
MSLS....1
Scanning range up to 70 m
If the test is unsuccessful, the
machine must receive a switch-off
signal from the machine control unit.
7.2.2 Scanning range of the
sender unit
The connection diagram for sender
unit with scanning range 15 to
70 m is shown in fig. 20 .
A short circuit bridge is to be
applied between contacts 5 and 6
in the terminal block (when using a
PG screw type) or in the cable
socket (when using Interconnectron
connectors).
The test input may only be used
to check any connected
switching elements.
Default condition
upon delivery without test
with test

SICK MSL Specifications

General

Brand	SICK
Model	MSL
Category	Receiver
Language	English