Data cables
NOTE
Layout of data cables
•
Use suitable conventional IO-Link connecting cables. Observe maximum lengths of
cable for the operating mode,
•
To avoid interference, always use EMC-compliant cables and layouts. This applies,
for example, to cables for switched-mode power supplies, motors, clocked drives,
and contactors.
•
Do not lay cables in parallel with voltage supply cables or motor cables in cable
channels over longer distances.
Conditions for specified enclosure rating
To ensure compliance with the specified IP67 enclosure rating of the device, the follow‐
ing requirements must be met:
•
The side cover of the memory card slot must be placed on and screwed tight to the
device. Recommended tightening torque for the cover screws: 30 Ncm ± 5 Ncm.
•
The head of the IO-Link is attached to the electrical M12 connecting cable and
tightly fastened.
•
The M8 connection, which may not be used, is sealed with a tightly screwed
protective element, e.g. a protective cap (as delivered).
6.1.3
Wiring instructions
NOTICE
Faults during operation and device or system defects!
Incorrect wiring may result in operational faults and defects.
■
Follow the wiring notes precisely.
Pre-assembled cables
NOTE
Pre-assembled cables can be found online at:
•
6.2
Pin assignments of electrical connections
6.2.1
Connection 1: “IO-Link”
1
4
3
2
Figure 11: Male connector, M12, 4-pin, A-coded
Table 5: Pin assignment of the IO-Link connection (port class type A)
PIN
Signal
Function
1
L+
+24 V DC (supply voltage)
2
Reserved
(Do not use)
3
L–
0 V (supply voltage)
6
ELECTRICAL INSTALLATION
32
O P E R A T I N G I N S T R U C T I O N S | RFU61x IO-Link
8026854//2021-09-01 | SICK
Subject to change without notice
