Cable Extension; Shielding Design - HBM T22 Montageanleitung

T22
Supply (Pin F) +11.5  30 V
Ground supply and current output (Pin E)
Fig. 3.1: T22 connection diagram

3.3 Cable extension

Extension cables must be shielded and of low capacitance. We recommend
the use of HBM cables, which satisfy these requirements.
With cable extensions it is important to ensure that a good connection is
provided, with minimum contact resistance and good insulation. This is why all
the connections should be soldered or at least made with secure, stable
terminals or screwed connectors.
Measurement cables should not be routed parallel to power lines and control
circuits (not in shared cable pits, for example). If this is not possible, protect the
measurement cable with a rigid steel conduit, for example, and keep it as far
away from the other cables as possible. Avoid stray fields from transformers,
motors and contact switches.

3.4 Shielding design

The cable shield is connected in accordance with the Greenline concept. This
encloses the measurement system in a Faraday cage. It is important that the
shield is laid flat on the housing ground at both ends of the cable. Any
electromagnetic interference active here does not affect the measurement
signal. Please comply with the connection guidelines.
In the case of interference due to potential differences (compensating cur-
rents), supply voltage zero and housing ground must be disconnected on the
amplifier and a potential equalization line established between the transducer
housing and the amplifier housing (copper conductor, 10 mm
tion).
A2302-6.0 en/de
Ground supply and current output (Pin E)
Torque current output (Pin L)
Torque voltage output (Pin C)
Ground voltage output (Pin D)
Type plate
T22
11
Nm
Nm
2
wire cross‐sec­
HBM