Instruction Manual PROTECT-PSC
V 2.6R01 / 04.19
3
–41
3.8
Input modules
3.8.1
General description
All input modules are self-monitoring and comply internally with PL d/e, Category 4
to ISO 13849-1 (the overall safety categorisation depends on the external circuitry
and the user program). The circuitry to cat. 3/4 must be provided by way of 2
channels to neighbouring terminals (odd and even address) against different
voltage potential, whereby a cross fault can be detected. The use of inputs for
AOPDs (Active Optoelectronic Protective Devices) requires a cross fault
recognition of the AOPDs. The inputs can be parameterised by means of the
programming software using one or two channels. In the case of two-channel use,
the selection can be made between an NC/NC, NO/NO and an NO/NC (antivalent)
combination. The maximum delay time between the channels (in the case of two-
channel circuitry) can be set steplessly between 0.1s and 9.9s similarly using
PROTECT-PSCsw.
In the case of PL d/e, Category 3/4 to ISO 13849-1 the inputs must be parameter-
ised using two channels via PROTECT-PSCsw.
If, due to the safety function, a two-channel parameterisation is not possible (e.g.
muting) it is absolutely essential when two one-channel inputs are used to have the
inputs on an odd and an even address. A general statement about the category at-
tained or the performance level is not possible in this case.
Содержание PROTECT-PSC
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