AMCI ANR2, User Manual

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I
NTRODUCTION TO THE
ANR2
1
9
ANR2 Programmable Parameters
Module Parameters
Module Type:
In addition to setting the Master/Slave jumper, you must also program this parameter to con-
figure the ANR2 as a master or slave module. The unit ships as a master module.
Excitation Voltage:
The excitation voltage of an ANR2 can be set to any value between 0.800 Vrms and
12.000 Vrms.
Excitation Frequency:
The excitation frequency can be set to any value between 400 and 10,000 Hz.
Sensor Parameters
Sensor Type: The ANR2 has to know what type of sensor (Differential, Ratiometric, or 3-wire/half bridge) is
wired to the channel. Note that 5- and 6-wire ratiometric sensors can be wired to the channel as dif-
ferential sensors. In these cases, the Sensor Type must be set to “Differential”.
Sensor Sensitivity: This parameter specifies the change in output as the sensor’s core moves. The value this
parameter should be set to is given with the sensor. The units for this parameter are 0.1mVoutput/Vex-
citation/displacement, where displacement can be in units of millimeters, 0.001 inches (mills), or
0.01°. This parameter is programmed with 0.1 millivolt resolution, with a range of 1 to 50,000. You
will probably have to convert between units before entering the values into the ANR2. For example,
if the sensitivity of your LVDT is 6.5 mV/V/mm, you would multiply this value by 10 to convert it to
the units of 0.1mV/V/mm and enter this value of 65 into the ANR2.
Sensor Displacement: This is the expected travel for your sensor. The ANR2 uses this information to verify
that the analog inputs will not become saturated during normal operation. The units for this parameter
are 0.01mm, mil (0.001"), or 0.01° and should be the same as the displacement unit used for Sensor
Sensitivity. Your displacement can exceed this value during operation, but accuracy may suffer. The
valid range of this parameter is 5 to 10,000.
Null Value: The desired value when the sensor is at its null position. This is a signed thirty-two bit value,
with the range of ±2,147,483,647.
Minimum Value: The desired value when the sensor is at one of its end of travel positions. This is a signed
thirty-two bit value, with the range of ±2,147,483,647. The maximum difference between the Mini-
mum and Null Values is 65,535 counts.
Maximum Value: The desired value when the sensor is at the other of its end positions. This is a signed
thirty-two bit value, with the range of ±2,147,483,647. The maximum difference between the Maxi-
mum and Null Values is 65,535 counts.
Disable Channel LED: Allows you to turn off the front panel Status LED if you have an unused channel.
Position Output
Your position output is defined at up to three points, the minimum, maximum, and null points. The values at
these points are defined when you align the sensor.
There are four different ways to define these points:
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Two Sided Alignment: You define all three values at the null, minimum and maximum travel points.
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Two Sided Symmetrical Alignment: You define the Null Value and the value at one of the end points.
The other endpoint is calculated as (Null Value – End Value).
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One Sided Alignment: You define the Null Value and the value at one of the end points. This form of
alignment is identical to Two Sided Symmetrical Alignment, but was included for users that only mea-
sure from the null point to one of the end points. The un-used end point is still defined as (Null Value –
End value).

Two Point Linear Alignment: You define the minimum and maximum points of travel.