4
DEFINITIONS
COUINT
- COUNT; This portion of the programming menu sets up the count input data.
dp loc
- DECIMAL POINT LOCATION; This sets a fixed decimal for the count and preset
values.
lo cps
- LOW COUNTS PER SECOND; This sets the input for a low count speed input (0
to 40Hz).
hi cps
- HIGH COUNTS PER SECOND; sets the input for a high count speed input (0 to
30KHz).
DP f a
- DECIMAL POINT FOR FACTOR A; This sets a decimal point for factor A.
loc
- LOCK; This portion of the programming menu sets up the panel lock configuration and
code.
lc all
- LOCK ALL; This sets the unit to lock the entire front panel when the lock is "on".
Preset values can be viewd but not changed.
lc prg
- LOCK PROGRAM; This sets the unit to lock the program when the lock is "on".
Presets values can be viewd and changed.
code
- CODE; This message flashes for approximately 3 sec. and is followed by the existing
lock code.
The K factor (divider) is the number of pulses per the
desired unit of measure. The K factor can be any 5
digit number from .0001 to 99999. The K factor can
be easily calculated by following two simple steps.
STEP 1 - Calculate a base K factor:
The base K factor is the number of pulse per the
known unit of measure. Calculate the base K factor
using:
Pulses = Base K factor
Known Units value
EXAMPLE #1:
An Encoder with 100 pulses per revolution is sensing
material. 1 Revolution of the shaft equals 1 foot of
material.
Base K factor = 100 (pulses)
= 100
1 (foot)
EXAMPLE #2:
An inductive proximity sensor is sensing a notch on a
paper roll (1 pulse per revolution). Each revolution of
the paper roll equals 3 meters of paper.
Base K factor = 1(pulse)
=.3333
3 (meters)
STEP 2 - Calculate the count K factor:
The count K factor is the actual number to be pro-
grammed into the unit. Caculate the count K factor
using:
Count K factor =
Base K factor
Units conversion factor
UNITS CONVERSION FACTORS
To convert:
Divide by:
ft to in
12
in to ft
0.0833
ft to m
0.3048
ft
2
to m
2
0.0929
ft
3
to m
3
0.0283
m to ft
3.2808
m
2
to ft
2
10.763
m
3
to ft
3
35.315
EXAMPLE #1:
Using the base K factor from example #1 above, the
desired reading is meters.
Count K factor =100 (base K factor) = 328.08
0.3048 (units factor)
EXAMPLE #2:
Using the base K factor from example #2 above, the
desired rate reading is Feet
Count K factor = .3333 (base K )= 0.1016
3.2808 (units factor)
The Count K factor is the number to enter in the
factor section of the program menu (see Program-
min
g Step 1).
CALCULATING THE K FACTORS
Содержание POSITROL PM2A3
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