21
22
13
14
B1
B2
A1
S11
S12 S22
A2
S33 S34
K4
S2
K4
K3
0V
24V DC
K3
M
K3
K4
S35
13
14
23
24
33
34
41
42
(+)
(+)
( )
( )
( )
( )
ESR5-BWS-31-24VDC
①
②
③
5 Application examples
ESR5-BWS-31-24VDC
11/23 MN049020EN Eaton.com
36
5.4 Two-channel protective door monitoring without shunted connection recognition, with mon-
itored Reset pushbutton
•
Manual activation
•
Automatic activation with jumper at S33-S35
•
Suitable up to category 3, PL d (EN ISO 13849-1), SIL 2 (EN IEC 62061)
Figure 21:
Two-channel protective door monitoring without shunted connection recognition
a
B1/B2 – mechanical protective door switches
b
S2 – manual reset device
c
K3, K4 - interlocked opposing contactors
→
Contactor K4 is not absolutely necessary to achieve Category 1.