schmersal PSC1 Series Installation Manual page 77

Installation manual
Each of the two external shutdown paths is monitored. An adequately high test rate as well as
MTTF = high for the external circuit are required for PL e according to EN ISO 13849-1.
D
X21
Q1_PP
Q2_PN
Q3_PP
Q4_PN
X12
I13
I14
T1
T2
X22
Q5.1
Q5.2
Q6.1
Q6.2
L +
L -
P
N
4.3.4.1.6 Dual-channel output with relay output - external control circuit in PL e
For safety applications from PL d and higher according to EN ISO 13849-1. The external
circuit is operated using two channels via the relay outputs. An adequately high test rate as
well as PL e for the external circuit are required for PL e according to EN ISO 13849-1.
X22
Q5.1
Q5.2
Q6.1
Q6.2
L +
L -
HB-37350-810-01-38F-DE PSC1-C-10 Installation manual V1.1.docx
Version: 38F
STO
Pl e
Page 77 of 177