MTS WIFT Mini Transducer Interface - Manual (Page 27)

Transducer Interface
SWIFT ® Mini TI Hardware Overview 27
TI Front Panel
Transducer Interface Front Panel
Power button and
Indicator
The power button turns power on and off. Pressing and holding the button turns
on power and initializes the TI. During initialization, all indicators turn on
momentarily. When initialization is complete, all indicators will turn off with the
exception of the green Power indicator.
Shunt button and
indicators
Pressing this button performs a shunt calibration (shunt cal) of the transducer.
You do not need to hold the button in continuously, only until the Shunt
indicators light up (indicating that the TI has started the shunt cal). The two
indicators will alternately toggle on and off as the TI sequences through the shunt
calibration of each bridge.
Before you perform a shunt cal, check that the appropriate shunt reference value
and error tolerance have been downloaded (these values are normally loaded
during system calibration.)
A shunt calibration will determine the current delta values by measuring the
bridges unshunted and shunted values, and then compare these values to the
previously loaded reference values.
If the measured values are outside of an acceptable tolerance the red status
indicator under the Power indicator with light.
Note The state of the shunt cal check is cleared at power-up, so the shunt cal
should be performed when the system installation is in question.
Zero button and
indicators
The zero button is used to zero the transducer inputs. When you press the button,
the TI executes the ZeroAlgorithm that you specify in the calibration file (see
“Calibration File Elements” on page 45).
J5 USB connector
The USB connector is a standard USB 2.0 type B connector for connection to a
laptop or PC with the correct drivers installed.
J4 I/O connector
Not used at this time.
Power button and Indicator
and Fail Indicator Shunt button
and Indicators
Zero button and
Indicators
J5 USB
Connector J4 I/O
Connector