Phoenix Contact 2702924, User Manual

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Application manual for PSRclassic and PSRmultifunction, and the modular safety relay system
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PHOENIX CONTACT 102597_en_03
5.4.3 PSR-ESAM4/2x1/1x2 up to PL e/SIL 3
Three-stage enable switch with two-channel emergency stop monitoring (with
cross-circuit detection)
Application example – Three-stage enable switch monitoring
– Two-channel emergency stop monitoring
– Cross-circuit detection
– Ground fault detection (S11, S12 only)
– Manual reset (S12, S34) at safety relay KS1
– Feedback of contactor contacts K3 and K4 at S34 at safety relay KS1
– Automatic reset (S12, S35) at safety relay KS2
– Feedback of contactor contacts K5 and K6 at S35 at safety relay KS2
– Stop category 0
– Monitoring of external contactors
– Safety level of the example up to PL e (EN ISO 13849-1) and SIL 3 (EN 62061)
Figure 5-23 Three-stage enable switch with two-channel emergency stop monitoring
PSR-ESAM4/2x1
Order No. 2900525 with screw connection
2900526 with spring-cage connection
Technical data – 24 V AC/DC
– 2 enabling current paths, 1 signaling current path
– Manual start or autostart
– Reinforced insulation
– Cat. 4, PL e in accordance with EN ISO 13849-1, SILCL 3 in
accordance with EN 62061
A1 23 13
31
A2 S34 S35 24 14 32
( ) ( )
PSR-ESAM4/2x1/1x2
S S 12 11 S21 S22
(+) ( ) ( ) (GND)
A1 23 13
31
A2 S34 S35 24 14 32
( ) ( )
PSR-ESAM4/2x1/1x2
S S 12 11 S21 S22
(+) ( ) ( ) (GND)
M
(N)
(L1)
L+
K6
K5
41
42
31
32
23
24
13
14
1
2
3
B1
S3
K4
K3
S1
KS1
KS2
K3
K4
K5
K6
K5
K6
M
K3
K4
Enable switch
operation
Emergency
stop
operation
Reset
Emergency
stop