Specifications

Core Software Operation
ADDvantage-32 PLUS ● AC to DC Power Converter
3-24
one edge operation.
2 - Is used when the frequency input is set up for 1 PHASE,
two edge operation.
4 - Is used when the frequency input is set up for 2 PHASE,
two edge operation.
Each counter can be reset or held by configuring Y***:CTR 1 RESET and Y***:CTR 1
HOLD to the appropriate bit in the digital data table.
For example, a 2-phase tach is connected to frequency input number 2 and produces
750 pulses for every foot of product. A reset button is wired into the first digital input on
the microprocessor board. The counter is to be held any time the second digital input is
on. To calibrate and configure the counter to count inches of product, perform the
following:
1. Locate D***:USER 1 and D***:USER 2, the parameters in the digital
data table which represent the two digital inputs being used.
2. Configure Y***:CTR 2 RESET to D***:USER 1. Configure Y***:CTR
2 HOLD to D***:USER 2.
This will reset the counter when the first digital input turns on and will
hold the counter when the second input is on.
3. To determine the calibration number for the counter, the length per pulse
must be found. It is given that 750 pulses = 1 foot. Converting this into
inches yields:
inch/pulses5.62
ft/inch12
ft/pulses750
=
or
1 pulse = 1/(62.5 pulses/inch) = .016 inches
The increment value for the counter is .016 inches every pulse. To determine the
calibration parameter, set the equation up for one increment value as follows:
A***:FOOTAGE 2 = .016 inches/pulse = (4)*X***:COUNT 2 CAL/PULSE
X***:COUNT 2 CAL = .004
This value causes the counter to increment 0.016 inches for every pulse detected
at the frequency input.
The differential footage counter keeps track of the difference between the two
frequency inputs.