Epsilon EP-P Drive Reference Manual
85
Revision A4
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Figure 99:
Output Lines View
Names
Descriptive text names can be assigned to individual output lines to make the setup easier to follow.
3.31
Analog Inputs View
The analog input is scaled from +10 V to -10 V range to either the units of the selected variable or to the defined units. A linear
scale with offset is defined by entering two points on the scale, a min and max to correlate the user unit 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 range.
The drive has one Analog input channel that accepts a +10 V to -10 V signal. The drive has a 12-bit over sampled to 14-bit
analog to digital converter (A/D), which is used to transform the analog voltage to a usable parameter in the drive. The analog
input is scanned by the drive every 100 microseconds.
Figure 100:
Analog Inputs View - Enabled
3.31.1 Enable Channel Check Box
By default, the analog input channel is not enabled meaning that the drive is not reading the A/D value read by the analog
circuit. If the check box is clear, the channel is not enabled and the configuration parameters for the analog input are
unavailable and therefore have no effect.
To enable the analog input, simply select the Enable Channel check box, and the configuration parameters will become
available to edit. With the channel enabled, the trajectory loop update will transfer data from the drive into
DriveAnalogInput.RawValue as volts and into DriveAnalogInput.ValueIn scaled.
Destination Variable
The Destination Variable (DriveAnalogInput.CustomDestinationVariable) can be entered one of two ways: by just typing any
parameter using the program format (dot notation) for the variable, or click the Popup Variables button and the Select
Variables from Tree window will open. Select the variable and drag it over to the Destination Variable text box.
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