HBM MP85A Operating Manual page 25

MP85A process controller
mode MEASURE. If a voltage of 24 V is present at PIN 3, the charge amplifier
switches to RESET.
TIP:
The reset signal can be generated externally or via the MP85A process
controller. To do this, the process signal "Reset piezo sensor" must be set to a
digital output of the MP85A process controller (PME Assistant, menu: Digital
outputs, circuit logic: positive).
TEDS:
The charge amplifiers have TEDS functionality for the voltage input which is
available in MP85A process controller from hardware version V1.07. When
operating without TEDS, the measurement ground (charge amplifier, Pin 6)
must be connected directly to Pin 3 of the MP85A process controller. The
yellow cable (TEDS) is therefore not required.
The charge amplifier has a measuring range selection RANGE1 / RANGE2.
Selection is via Pin 2 of the charge amplifier. The switching signal can be
supplied by an external control or the digital inputs of the MP85A process
controller. If a voltage of 0 V is present at Pin 2, measuring range 1 (100%
F ) is active at the charge amplifier.
nom
TIP:
The CMA charge amplifier gives you the option to zoom into a second meas-
uring range (20% of the nominal (rated) force = 100% output span). A voltage
of 24 V must be applied at PIN 2 for this.
DC
The changed measuring range must also be set in the MP85A process
controller, either automatically via the TEDS function or using the scaling
option of the input channel.
A2392−5.0 en
25
HBM