HB-37350-810-01-50F-EN PSC1-C-10 Installation manual V2.1.docx Page 90 of 189
Version: 50F
4.3.5.2.3 Circuit with safe shutdown circuit
For safety applications from PL c and higher according to EN ISO 13849-1. The external
circuit is operated directly using a dual-channel output. The achievable PL according to EN
ISO 13849-1 is dependent on the usage of dynamic testing (see 4.3.2.1 DC) as well as the PL
for the downstream device.
STO
Pl e
IQQ02
X21
IQQ03
IQQ04
IQQ05
L +
L -
Dual-channel output in conjunction with device with tested shutdown
4.3.5.2.4 Circuit in conjunction with dual-channel shutdown circuit
Suitable for PL d or higher according to EN ISO 13849-1. Usage of one output IQQx in
conjunction with a dual-channel external circuit with testing. In particular, positively driven
auxiliary contacts are required for electromechanical devices, or valve position signal contacts
are required for this purpose for hydraulic or pneumatic components.
The achievable PL is dependent on the dynamic testing as well as the MTTF
D
for the external
circuit. A maximum of PL e according to EN ISO 13849-1 can be achieved!
X12
I12
I13
T0
T1
L +
L -
IQQ02
X21
IQQ03
IQQ04
IQQ05
Dual-channel output in conjunction with dual-channel shutdown circuit with testing
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