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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.
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.
6.4
Wiring of the connection module
WARNING
Risk of injury due to electric current!
If the supply voltage is produced by a power supply unit, then insufficient electrical
separation between input and output current circuit of the power supply unit may lead
to an electric shock.
■
Only use a power supply unit whose output circuit has safe electrical separation
from the input circuit. For example with a safety transformer in accordance with
EN 61558-1.
•
Electrical installation must only be carried out by qualified personnel.
•
Standard safety requirements must be observed when working on electrical sys‐
tems!
•
The voltage supply must be disconnected when attaching or detaching electrical
connections.
•
To ensure protection against short-circuits/overload in the outgoing supply cables
(U
IN
*) to the ID sensor, the wire cross-sections used must be suitably dimensioned
for the fuse installed in the connection module. Observe the following standards:
DIN VDE 0100 (Part 430), DIN VDE 0298 (Part 4) and DIN VDE 0891 (Part 1)
•
For the terminal assignment, see the connection diagram or the inside of the
cover.
•
To prevent interference, avoid laying the cables parallel to the power supply and
motor cables.
•
Select the reference potential for the switching inputs using switch S 3.
1.
Connect the ID sensor cable to the 15-pin D-Sub HD female connector of the con‐
nection module. Use the following adapter cable for the M12 connection variant of
the ID sensor:
°
M12, 12-pin to D-Sub-HD, 15-pin, e.g., 6061702 (2 m)
°
M12, 17-pin to D-Sub-HD, 15-pin, e.g., 2055419 (2 m)
2.
Connect all other cables to the terminals via cable glands. Attach blind plugs to all
unused bushings.
3.
Connect the customer’s shield to the connection module (“Shield” terminal).
4.
CAN bus: If the connection module is located at the end of the bus, connect a
termination resistor to switch S 2.
6
ELECTRICAL INSTALLATION
16
O P E R A T I N G I N S T R U C T I O N S | CDB620
8021690/ZZN1/2021-05-07 | SICK
Subject to change without notice