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8016441/2013-11-22 • © SICK AG • Subject to change without notice
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Electrical connection
All electrical connections of the ISD400 Pro are configured as M12 round
connectors.
The IP 65 protection class is only achieved using screwed plug connectors.
All electric circuits connected to the ISD400 Pro must be configured as
PELV or SELV circuits (PELV= protective extra-low voltage, SELV = safety
extra-low voltage).
By using appropriate cable entries and wiring, you can avoid interference
from devices such as switching power supplies, motors, clocked drives, and
contactors.
• Cables should be laid as far away as possible from cables with a high
level of radiated emission. Take additional measures where necessary,
e.g. separation by means of screening shields.
• Do not lay cables parallel to other cables, especially not to devices with
a high level of radiated emission, such as a frequency converter.
• Do not lay cables parallel to energy cables.
Please observe the following wiring notes:
• A correct and complete cable shielding concept is required for trouble-
free operation.
• The cable shield must be connected at both ends in the control cabinet
and at the device. The cable shield of the pre-assembled cable is con-
nected to the knurled nut and thus also to the device housing.
• The cable shield in the control cabinet must be connected to the opera-
ting ground over a large surface area.
• Appropriate measures must be taken to prevent equipotential bonding
currents flowing through the cable shield.
• Do not lay cables parallel to other cables, especially not to devices with
a high level of radiated emission, such as a frequency converter.
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90
90
Fig. 9: Cross cables at right angles