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•
All circuits connected to the device must be designed as ES1 circuits. The voltage
supply or power supply unit must satisfy ES1 requirements in accordance with the
currently applicable EN 62368-1,
see "Mechanics and electronics", page 53
•
First switch on the supply voltage for the device:
°
Completing the connection work
°
Carefully checking the wiring work
Data cables
NOTE
Layout of data cables
•
Use suitable conventional IO-Link connecting cables. Observe maximum length of
cable,
•
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 or IP68 enclosure rating of the device
variants, the following requirements must be met.
•
The head of the IO-Link is attached to the electrical M12 connecting cable and
tightly fastened.
6.2
Wiring instructions
NOTICE
Faults due to incorrect wiring!
Incorrect wiring may result in operational faults.
•
Follow the wiring instructions closely.
Pre-assembled cables
NOTE
Pre-assembled cables can be found online at:
•
6.3
Pin assignments of electrical connections
6.3.1
IO-Link connection
1
4
3
2
Figure 15: Male connector, M12, 4-pin, A-coded
Table 6: Pin assignment of the IO-Link connection (port class type A)
PIN
Signal
Function
1
L+
+ DC 24 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 | RFH5xx
8025309//2020-12-08 | SICK
Subject to change without notice