Pilz PSSu K F INC - Manual (Page 25)

Wiring
Operating Manual PSSu K F INC
1001688­EN­06 25
6 Wiring
6.1 General wiring guidelines
Please note:
} The module's connections are galvanically isolated from the module supply and peri­
phery supply.
} For EMC reasons we recommend that you operate inputs A, B, C exclusively as differ­
ential inputs with inverted signals (A+/A­, B+/B­, C+/C­).
} The module evaluates open differential inputs (A+/A­, B+/B­, C+/C­) as a 1 signal.
} The module evaluates open function inputs (G, L, S) as a 0 signal.
} Use twisted pair cables to carry the inverted signals. This will increase the noise im­
munity.
} Use shielded signal cables with metallic plugs. The screening should be connected to
the housing of the D­Sub connector.
} The channel for the incremental encoder's zero pulse has a different designation de­
pending on the manufacturer (N, C, Z, 0,...)
} The supply voltages must be extra low voltages with protective electrical separation
(PELV or SELV) in accordance with VDE 0100, Part 410.
} Use copper wiring.
} Connect the two sensors via separate cables. This also applies to compact encoders.
6.2 Interface configuration
Connection encoder sig­
nals
Layout
Female 9­pin D­Sub con­
nector X1
1: C+
2: B+
3: A+
4: n. c.
5: 0 V counter
6: C­
7: B­
8: A­
9: U
p
(+5 V for sensor)
1
5
9
6