schmersal PSC1 Series Installation Manual page 46

Installation manual
Start-up testing:
Each time the safety module is switched on (=PSC1 module), the input element must be
tested in the low signal status direction (= defined safe status), e.g. actuation of the
emergency stop button or a door lock after system start.
Operative / organisational tests:
Beyond the diagnostic measures on the PSC1 modules stated above, cyclic testing can be
undertaken in the application. These tests can be used in the assessment of the DC.
Note:
The operative/organisational tests can also be used for a combination of hardware inputs and
functional inputs (input information transmitted via standard fieldbus). The exclusive usage of
functional inputs is however excluded in this respect (combination of two or more functional
inputs)
The PSC1 modules therefore provide wide-ranging diagnostic functions for the input sub-
system. These are designed as continuous, or optional (cross-circuit monitoring using pulse
detection).
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 46 of 201
Version: 25F