Device description
Leuze electronic
MSI-SR5B
10
Figure 3.3: Internal circuit diagram
3.1
System overview
• Double sensor evaluation at two terminal groups
• 1- or 2-channel E-Stop circuit
• Cross-circuit recognition
• Monitoring of external contactors in the reset circuit
• Monitored reset button (cross connections between the button contacts and earth faults in the button
circuit are detected.)
• Automatic or manual start/restart
• Stop category 0 (EN 60204-1:2006)
• 2 release circuits
• LED displays Power, K1 and K2, reset
• Operating voltage 24 V AC/DC
• Housing width, 22.5 mm
• Removable connection terminal blocks (screw terminals, spring-cage terminals)
3.2
Display elements
Four LEDs indicate the operating state of the safety relay.
N.O.
N.O.
29 31
30 32
14
K2
K1
5
CH1
CH2
~
=
+
24
16
7
13
MSI- SR5
21
22
23
15
8
&
(+24V)
(+S12)
(+S11)
(-S12)
(-S22)
(+S22)
(+S21)
(IV-O)
(RES-I)
(RES-O)
(0V-O)
(0V)
6
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