Application Example; Two-Channel Emergency Stop Monitoring With Contact Extension - Eaton ESR5-NE-51-24VAC-DC Manual

13 Application example

13 Application example

13.1 Two-channel emergency stop monitoring with contact extension

18
• Manual, monitored start
• Monitoring of external contactors
• Suitable up to category 4, PL e (EN ISO 13849-1),
SIL 3 (EN 62061), if cross-circuits can be ruled out in the control for
contact extension
￫
Cross-circuits in the cable installation can be excluded
if the safety relay and the contact extension are located in
the same electrical installation space.
L+
(L1)
①
S1
A1 S1 1 S 12 S 2 1 S2 2
(+)
( ) (GND) ( )
( ) ( )
A2
S34 S35
KS1
K3
K4
K5
K6
K7
K8
M
(N )
Figure 11: Two-channel emergency stop monitoring with contact extension
S1 - Emergency stop button
K3, ..., K8 - Contactors
ESR5-NE-51-24VAC-DC 12/19 MN049002EN www.eaton.com
Reset
S2
13 23 41 A1 11 12
ESR5-NE-51-24VAC-DC
42 A2
14 24
KS2
K3
K4
K3
K4
M
23 33 43 53
63 71
24 34 44 54 64 72
K7
K5
K8
K6
K7
K8
K5
K6
M
M