Operating manual EMGZ308
9
6.2 Mounting the force sensors
Mounting of the force sensors is done referring to the FMS Installation manual which is
delivered together with the force sensors.
Wiring to the terminals of the electronic unit is done according to wiring diagram (fig. 5).
Notice
Connecting the shield of the signal cable to the electronic unit
and
to the force sensor
may cause ground circuits which may interfere the measuring signal massively.
Malfunction can be the result. The shield should be connected only to the electronic unit.
On the „force sensor“ side, the shield should stay open.
6.3 Wiring
fig. 5: Wiring diagram
E308007e
There can be connected 1 or 2 force sensors per channel. Using 2 force sensors, the
connections will be wired parallel. The output signal of the measuring amplifier then will
correspond to the average value of the 2 sensors.
The connection between force sensors and measuring amplifier has to be done using
2x2x0.75mm
2
[AWG 18] shielded twisted-pair cable. (With cable length below 15m,
2x2x0.25 mm
2
[AWG 23] is also suitable.) The cable must be installed separate from
power lines.
Caution
Bad earth connection may cause electric shock to persons, malfunction of the total system
or damage of the electronic unit! It is vital to ensure that proper earth connection is done.
