
M
OUNTING INSTRUCTIONS
7.1 Cable connections
7-1
8310/8610-8
7 Mounting instructions
7.1 Cable connections
The compact design of the Controller and the variety of modules and
connection properties has consequently lead to the use of relatively small
dimensioned terminal strips. For a good electrical contact and mechanical
grip of the cables in the terminal strips as well as for a safe insulation we
strongly recommend that stranded cables be fitted with wire end ferrules to DIN
46228 part 4, which are fixed permanently using a special crimping tool. If two
or more thin cables are to be connected to one terminal, the use of twin wire
end ferrules will be advantageous.
For tightening the terminal screws use a screw driver with the following
blade size:
●
0.4
×
2.5 mm
for terminal strips with a 3.8 mm grid (screw M2) as C,
D, P, W, Y, and Z
●
0.5
×
3.5 mm
for terminal strips with 5.1 mm and 7.6 mm grids (screw
M3) as N and R
7.2 EMC measures
In order to achieve highest electromagnetic compatibility (EMC) or to maintain
EMC certified for the devices with the
marker pay special attention to the
screening and earthing. In general:
➨
Earthing connections should be kept as short as possible and with a large
cross-section (e.g. low-inductance braided cable, flat-band conductor)
➨
Mounting plates as well as the control cabinet must be well earthed
➨
All un-screened cables should be kept as short as possible
➨
Connect screens at both cable ends with as large a surface area as
possible
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