Measures for small system installations
For smaller installations with only slight potential differences, insulated mounting of the
device and peripheral devices may be an adequate solution.
U
System
Controller
Power Supply
SICK
Device
8 6
5
21 3
4
7
= 9
= ß
Figure 14: Example: Prevention of equipotential bonding currents in the system configuration by
the insulated mounting of the device
1
System controller
2
Device
3
Voltage supply
4
Grounding point 3
5
Insulated mounting
6
Grounding point 2
7
Ground potential difference
8
Grounding point 1
9
Metal housing
ß
Shielded electrical cable
Even in the event of large differences in the ground potential, ground loops are effec‐
tively prevented. As a result, equalizing currents can no longer flow via the cable shields
and metal housing.
NOTICE
The voltage supply for the device and the connected peripheral devices must also
guarantee the required level of insulation.
Under certain circumstances, a tangible potential can develop between the insulated
metal housings and the local ground potential.
6.3 Note on the swivel connector
NOTICE
Damage to the connector from over-rotation!
The swivel connector has two opposite end positions.
■
Do not rotate the connector from either of the two end positions by more than
180° in the opposite direction. Do not exceed the respective limit position.
■
Carry out the rotational movement slowly.
ELECTRICAL INSTALLATION 6
8024439/1EJ6/2022-02 | SICK O P E R A T I N G I N S T R U C T I O N S | InspectorP62x
29
Subject to change without notice
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