schmersal PSCBR-C-10 Series, Руководство по установке

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Installation manual
Page 37 of204
4.2.1.4.5 Dual-channel sensor with time-out and cross-shorting test
Cross-shorting as well as connections to DC 24 V and DC 0 V can be detected by using two
independent clock signals on the homogeneous sensor.
Pl d or higher acc. to EN 13849-1 can be achieved when:
- using sensors / switching elements with positive actuation.
- using 2 sensors / switching elements with independent actuation.
- dto. However, with actuation through a common actuating device in connection with an fault
exclusion for this device.
DI1
DI2
DI3
DI4
DI13
DI14
P1
P2
X14
.
.
.
L+
L-
P2
P1
X12
Figure: two-channel sensor, homogeneous with clock
Safety note:

Pl d or higher in accordance with EN ISO 13849-1 is achieved by using switching
elements / sensors with positively actuation

When using two independent sensors with independent actuation, PI d or higher acc.
To EN ISO 13849-1 can be achieved.

When using common elements in the actuation chain, an fault exclusion is required for
this purpose. The corresponding limitations and criteria acc. to EN 13849-1 must be
observed.