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Bandwidth
This parameter sets the low-pass filter cutoff frequency applied to the analog input. Signals exceeding this frequency will be
filtered at a rate of 20 db per decade.
Set Maximums Group
Maximum Value
This parameter is used for user unit scaling. Enter the maximum value in analog user units to which the maximum analog
voltage should correspond.
Maximum Voltage
Enter the maximum voltage that will be seen on the analog input terminals. The user can enter the value in this text box by
hand, or set the analog source to it's maximum value with just a click of the "Set Max Voltage to Measured" button next to
the text box.
Set Max Voltage To Measured Button
Click this button to read the current value on the analog channel and enter it into the Maximum Voltage text box.
Minimum Value
Enter the minimum value in analog user units that the minimum analog voltage should correspond to.
Minimum Voltage
Enter the minimum voltage that will be seen on the analog input terminals. The user can enter the value in this text box by
hand, or set the analog source to it's minimum value with just a click of the "Set MinVoltage to Measured" button next to the
text box.
A/D Voltage
This parameter is visible while online. It is the raw analog input in Volts.
ValueIn
This parameter is visible while online. This is the results of the analog value scaled to the user unit value.
Read Max/Min Voltage Settings
This button is not functional for the FM-4 module.
Analog Outputs View
The drive has two 10-bit Analog Outputs that may be used for diagnostics, monitoring or control purposes. These outputs are
referred to as Channel 1 and Channel 2. They can be accessed from the command connector on the drive or from the output
pins located on the front of the drive. See "Drive Faults" on page 242 for more information.
When Module Variable is selected from the Source list box, a FM Var text box and Popup Variables... button appear. When
this button is pushed the variables window will open and the user can then select a variable from the list and drag it over to
the FM Var text box to assign it to the analog channel. This allows any module variable to be output on the analog channel
after being assigned.
The analog output is scaled from the units of the selected variable to the +10/-10 volt range of the Analog Output. It is a linear
scale with offset defined by entering two points on the scale, a minimum and maximum to correlate the user units to analog
voltage. The actual minimum and maximum range of either user unit or analog voltage does not need to be entered as the
algorithm will extrapolate the ranges.
Setting Up Parameters
103
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