HBM WE2108 Series, Справочное руководство

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WE2108
HBM A1632-2.0 en
3.2.1 Cable entry
Four PG glands are provided in the back part of the housing for the sealed
entry of the cables. They enable round cables with a diameter of 5 to 7 mm to
be used. The PG glands serve solely for sealing and strain relief. The shield
of the cable must therefore not be contacted to the PG gland (as in other HBM
units), but to the screw clips in front of the connection terminals.
This also applies to the versions in a steel housing (WE2108M /
WE2108S) and is essential for the EMC characteristics of the units.
To minimize EMC problems, the individual wires should be as short as possi-
ble from the end of the shield up to the terminal. Therefore avoid cross−con-
nections, e.g. from the interface cable to a switching input, and use instead of
this separate cables corresponding to the terminal arrangement. A common
cable should be used for supply and switching inputs.
3.2.2 Preparation of the cables
1. Remove the outer sheath to around 20 mm.
2. Shorten the shield braiding to 5 mm and
fold over to the back.
3. If necessary remove the inner sheath.
4. Strip wire ends to approx. 5 mm.
5 5
Shield
20
5. Run cable through the PG gland.
6. Push cable under the connecting clip and screw this down so that the area
of the folded over shield is clamped firmly.
7. Connect wires to the terminals.
3.2.3 Load cell connection
Terminal PC board legend Function Funktion
1 1. Sense + Fühlerl
2 −− Sense − Fühlerleitung −
3 −− Signal + Mess
4 −− Signal − Messsignal −
5 −− Excitation + Brückenspeisesp
6 6. Excitation − Brückenspeisespannung −