EATON
VFX Product Family Installation and Operation Manual E-ELCL-II003-E1 November 2014
21
VFX Product Family
The programmer changes the configuration of an
individual input using the AIN mode value drop down
selection. Note that if any of the following auto
configurations is selected offline, the state of the
corresponding pull-up, pull-down and current shunt
will change once the program is downloaded into the
application controller.
Variables:
•
AIN Mode: This represents the type of input
connected.
•
Pull-Up Enabled: This is used in manual mode to
activate the Pull-up resistor.
•
Pull-Down Enabled: This is used in manual mode
to activate the Pull-down resistor.
•
Current Shunt Enabled: This is used in manual
mode to activate the Current shunt resistor.
•
DIN Rising Threshold: This sets the lower limit
voltage level necessary for the input to register
as high.
•
DIN Falling Threshold: This sets the upper limit
voltage level necessary for the input to register as
low. Used in conjunction with the above DIN rising
threshold, an appropriate hysteresis level can be
defined.
•
Sample Rate: This sets the sample rate of input
(i.e., ## ms/revolution).
•
Sample Average Count: This sets the number of
samples to average.
Make sure to take into consideration the effect of
hysteresis (e.g. have some margin between rising
and falling thresholds).
14.4
Sample Rate and Count
To establish the sample rate and count for the
Digital Inputs/Outputs and Analog Inputs, access the
appropriate selection on the left of the screen.
For Digital, the following Configuration screen will appear:
The Sample Rate can be set or changed in the Value column. Double click the value and change if desired.