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Functions and Oper
ations
5.5 Setting Prescale Values
5-29
Prescaling enables input values to be displayed using any unit by multiplying the input pulse frequency or
count by a specific coefficient.
Example:
This example shows the prescale value and the prescale set values for displaying the speed of a rotary
encoder that outputs 500 pulses per second. (The K3HB-R is used in function F1.)
D
=
fa
×
60
×
α
fa
: Frequency A (Hz)
α
: Prescale value A
D
: Measurement value (rpm)
Prescale value (
α
) = 1/500 = 0.002 = 2.0
×
10
−
3
Prescale value of Input A, X (mantissa):
ps.
ax
=
2.
0000
Prescale value of Input B, Y (exponent):
ps.
ay
=
10 -3
Prescaling
Parameter Setting Procedure: Prescale Settings for Input A
The following procedure uses the K3HB-R as an example.
Explanation of Functions
Prescaling
3 s min.
A
Press the
L
[LEVEL] Key for at least 3 s in RUN level to move to
the initial setting level.
• “
L
0
” is displayed on the level/bank display to indicate the initial
setting level.
B
Press the
M
[MODE] Key several times to switch the PV display
to “
ps.
ax
.”
• Teaching is possible for the prescale AX (mantissa) scaling
input value. “T” is lit to indicate that teaching is possible.
• Refer to P.5-30 for the teaching method.
C
Press the
S
[SHIFT] Key to make the SV display flash.
• The setting can be changed when the SV display starts to
flash.
D
Use the
U
[UP] and
S
[SHIFT] Keys to change the set value.
E
Press the
M
[MODE] Key to switch the PV display to “
ps.
ay
.”
F
Press the
S
[SHIFT] Key to make the SV display flash.
• The setting can be changed when the SV display starts to
flash.
G
Use the
U
[UP] and
S
[SHIFT] Keys to change the set value.
0
func
Displays "
L
0
."
f1
L
0
ps.ax
1.0000
"T" is lit.
M
0
ps.ax
1.0000
S
0
ps.ax
2.0000
U
0
ps.ay
10 0
M
0
ps.ay
10 00
S
0
ps.ay
10 -3
U
Summary of Contents for K35-2
Page 2: ......
Page 24: ...Outline Section 1 Outline 1 8 ...
Page 25: ...2 1 Preparations Section 2 Preparations 2 1 Mounting 2 2 2 2 Using I O 2 4 ...
Page 54: ...Basic Application Methods Basic Application Methods Section 3 Basic Application Methods 3 18 ...
Page 62: ...Initial Setup Section 4 Initial Setup 4 8 ...
Page 148: ...Functions and Operations Section 5 Functions and Operations 5 86 ...
Page 149: ...6 1 Troubleshooting Section 6 Troubleshooting 6 1 Error Displays 6 2 6 2 Countermeasures 6 3 ...
Page 152: ...Troubleshooting Section 6 Troubleshooting 6 4 ...
Page 185: ......