MTS SWIFT 40 Sensor - Manual (Page 35)

Transducer Interface
SWIFT 40 Sensors Hardware Overview 35
Angle Zero and Bridge
Zero switches
These switches are used to zero the transducer inputs. Which switch you press
depends on the ZeroAlgorithm that you specified in the calibration file (see
following illustration). Two different methods are used to zero the system:
spinning and non-spinning. For more detailed information on selecting a zero
method, see the chapter, “Setting up the Transducer Interface.”
When you select a zero method, it will activate the appropriate switch on the TI
front panel. Each switch performs a specific zero function:
Angle Zero– Angle offsets are required for spinning applications only. This
switch is active when the ZeroAlgorithm=1, or 3. The TI reads the current angle
and compensates for any offset from the Z axis facing up. You will not use this
switch for non-spinning applications.
Bridge Zero–Bridge offsets are required for both spinning and non-spinning
applications. This switch is active when the ZeroAlgorithm=0, 1, or 3. The TI
reads the transducer bridge values and compensates for any offsets so that the
bridge output is 0 at 0.0V.
[SWIFT]
Name=zero 3 after new tire
SerialNum=1234567
Normalization=0
InputSwitches=255
OutputPolarities=40
ZeroAlgorithm=4
AngleMode=0
AngleOffset=82.0898
AngleFixed=0
EncoderSize=0
ZFX1=0.103786
ZFX2=-0.023199
ZFY1=-0.094017
ZFY2=-0.184371