Phoenix Contact 2702924, User Manual

Page: 72 / 138

Application manual for PSRclassic and PSRmultifunction, and the modular safety relay system
72 / 136
PHOENIX CONTACT 102597_en_03
5.3.8 PSR-ESL4/3x1/1x2/B up to PL d/SIL 2
Two-channel, non-equivalent safety door monitoring with manual reset
Application example – Two-channel, non-equivalent safety door monitoring with two position switches
– Manual reset (S33, S34)
– Feedback of contactor contacts K3 and K4 at S33 and S34
– Stop category 0
– Monitoring of external contactors
– Safety level of the example up to PL d (EN ISO 13849-1) and SIL 2 (EN 62061)
Figure 5-20 Two-channel safety door monitoring with manual reset
PSR-ESL4/3x1/1x2/B
Order No. 2981059 with screw connection
2981062 with spring-cage connection
Technical data – 24 V DC
– 3 enabling current paths, 1 signaling current path
– Monitored manual start or autostart
– Basic insulation
– Cat. 4/PLe in accordance with EN ISO 13849-1, SILCL 3 in
accordance with EN 62061
K3
K4
M
A1 23 33 13
41
A2 S33 S34 S35 24 34 14 42
( ) ( )
PSR-ESL4/3x1/1x2/B
S S 12 11
(+) ( )
(+)
M
(N)
(L1)
L+
K4
K3
K3
K4
B1
B2
13
21
14
22
open
closed
S2
S22
( )
Reset
Safety door