General Measures And Conditions For The Power Supply Solution Of The Module - WAGO -SPEEDWAY 767 Manual

70 Use of the Interference-Free Module in Safety Applications
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11.2 General Measures and Conditions for the Power
Supply Solution of the Module
Prevent conductive pollution!
Conductive pollution in the connection sockets of the power supply connections
for voltages UA and ULS can be prevented through suitable measures. Before
establishing the connection, inspect the contact areas for dirt and debris. Only use
clean tools and materials when handling the modules.
Tighten connectors with torque!
To achieve protection class IP67, the connectors must be tightened at a torque of
0.6 Nm. Otherwise, the safe shutdown of the I/O module by a safety switching
device in the case of penetrating pollution cannot be ensured.
Observe connecting cable specification!
The values indicated in the specification for the connecting cables regarding the
environmental characteristics and mechanical load capacity must never be
exceeded.
Use safety switching device with diagnostic functions!
The safety switching device must have diagnostic functions, which ensure
detection of the external power supply, so that an accumulation of errors does not
lead to loss of the safety function.
When connecting the wire ends to the connectors, prevent the strands from
fraying!
If a prefabricated cable from WAGO is not used, then prevent the strands of the
wire ends from fraying when connecting the cable to the connectors. A short
circuit in the connector can otherwise lead to loss of the safety function. If
necessary, check the insulation of the wires to each other using a high-voltage
test, for example.
767-4804/000-800 8DO 24V DC 2.0A IF (4xM12)
WAGO-SPEEDWAY 767
Manual
Version 1.1.0