PSRmodular system
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PHOENIX CONTACT 109241_en_03
Figure 5-5 “SINGLE/DUAL-OUTPUT” function block (safe output)
Parameters
Output Type – Single
– Dual
When using a PSR-M-B2, PSR-M-EF1 or PSR-M-EF5 module, the user can choose be-
tween various configurations:
1. 4 x SINGLE output (O) function block
2. 2 x DUAL output (O) function block
3. 2 x SINGLE output (O) function block + 1 x DUAL output (O) function block.
NOTE:
– In order to achieve PL e and SIL 3 with single-channel wiring of the outputs, you must
rule out any errors in the cable installation for the control of the actuators (left illustra-
tion). Cross-circuits in the cable installation can be prevented in the same electrical
installation space or through mechanically protected cable installation.
– If it is not possible to rule out errors, use two-channel wiring of the outputs (dual out-
put) for the control of the actuators.