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1 module 1 - r, Etup, Arameters – Red Lion PAXDR User Manual

Page 10

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10

6.1 MODULE 1 - R

ATE

S

ETUP

P

ARAMETERS

(



)

Low Update

Time

High Update

Time

Rate x

Linearizer

Segments

Rate C Display

Multiplier

Rate C

Display

Indicator

Rate x

Decimal

Position

Rate x

Scaling Input

Rate x

Scaling Display

PAR

1-rAtE

LO-Udt

C SCLr

C LIt

x

dPt

x

SE6S

x

dSP #

x

INP #

Pro

HI-Udt

Rate x

Display

Rounding

x

rnd

C dPt

Rate C

Decimal
Position

Rate C

Calculation

C rAtE

PARAMETER MENU

The Low Update Time is the minimum amount of time between display

updates for the Rate display. Values of 0.1 and 0.2 seconds will update the
display correctly but may cause the display to appear unsteady. The factory
setting of 1.0 will update the display every second minimum.

Note: Update time settings apply to both Rate A and Rate B.

LOW UPDATE TIME (DISPLAY UPDATE)





Module 1 is the programming for the Rate parameters. The Rate A signal is

applied to Input A, and the Rate B signal is applied to Input B. The Rate values
are shown with an indicator of

,

or

in display digit 6.



to



seconds

The High Update Time is the maximum amount of time before the Rate

display is forced to zero. (For more explanation, refer to Input Frequency
Calculation.) The High Update Time must be higher than the Low Update Time
and higher than the desired slowest readable speed (one divided by pulses per
second). The factory setting of 2.0, will force the display to zero for speeds
below 0.5 Hz or a pulse every 2 seconds.

HIGH UPDATE TIME (DISPLAY ZERO)







to



seconds

x = A or B Rate, # = Scaling Point (0-9)

Select the calculation for Rate C display. Rate C calculation should be set to



when not in use. When set to



, the remaining Rate C parameters are

not accessible.

SELECTION

DESCRIPTION



No Calculation. Rate C disabled.



SUM (A+B). Rate C shows the sum of Rate A and Rate B.



DIFFERENCE (A-B). Rate C shows the difference of Rate A and
Rate B.



RATIO (A/B). Rate C shows the percentage of Rate A to Rate B.



PERCENT OF TOTAL (A/A+B). Rate C shows the percentage of
Rate A to the total of Rate A and Rate B.



PERCENT DRAW (A-B/B). Rate C shows the percent draw
between Rate A and Rate B.

RATE C CALCULATION

















Set the Display Multiplier to obtain the desired Rate C display resolution.

For Rate C percentage calculations, the result is internally multiplied by 100 to
show percent as a whole number. By using a Display Multiplier of 10, 100 or
1000, along with the proper decimal point position, percentage can be shown in
tenths, hundredths or thousandths respectively.

RATE C DISPLAY MULTIPLIER









Select the decimal point position for Rate C display and any setpoint value

assigned to Rate C.

RATE C DECIMAL POSITION











The Rate C display indicator in digit 6 may be turned OFF if desired. Rate A

and Rate B display indicators are always shown.
Note: Disabling Rate C indicator does NOT provide an additional digit for Rate

C value display. The display range remains -9999 to 99999.

RATE C DISPLAY INDICATOR









When Rate C is enabled, this parameter sets the decimal point position for

Rate A and B display (same position for both), and any setpoint value assigned
to Rate A or Rate B. If Rate C is disabled, this parameter does not appear and
separate decimal point positions can be selected for Rate A and Rate B.

RATE A & B DECIMAL POSITION











RATE A LINEARIZER SEGMENTS

This selects the decimal point position for Rate A display and any setpoint

value assigned to Rate A. This parameter does not appear if Rate C is enabled.

RATE A DECIMAL POSITION



This parameter specifies the number of linear segments used for the Rate A

Scaling function. Each linear segment has two scaling points which define the
upper and lower endpoints of the segment. The number of segments used
depends on the linearity of the process and the display accuracy required as
described below.

Linear Application – 2 Scaling Points

Linear processes use a single segment (two scaling points) to provide a linear

Rate display from 0 up to the maximum input frequency. For typical zero based
frequency measurements (0 Hz = 0 on display), leave



(factory setting).

For non-zero based 2 scaling point applications, set



, to enter both the

zero segment (



&



) and segment 1 (



&



).











to