Eaton MVX9000 Series, User Manual

Page: 56 / 180

Group 30 — Inputs
5-8 MVX9000 User Manual
Descriptions of
Parameter Settings
30.08
Potentiometer Bias
Polarity
Range: Default: 00
00 Positive Bias
01 Negative Bias
This parameter may be set during operation.
This parameter sets the Potentiometer Bias Frequency to be
positive or negative.
30.09
Potentiometer Slope Range: 0.1 to 300.0% Default: 100.0
Unit: 0.1%
This parameter may be set during operation.
This parameter sets the slope (or ratio) of analog input vs.
output frequency.
Example: Potentiometer Slope = (1 – 30.07) x 100% = 83.3%.
30.10
Potentiometer
Direction
Range: Default: 00
00 Forward motion only
01 Reverse motion enable (must be in negative bias)
This parameter allows the user to select direction via the
analog input command. Setting of 01 allows both forward
and reverse direction as shown in example 5 below.
30.07 to 30.10 are used when the source of frequency
command is the analog input AI1, AI2 or keypad
potentiometer (0 to +10V DC or 4 to 20 mA DC). Refer to the
following examples for programming these parameters.