Functions and Oper
ations
5.1 Setting the Function for the K3HB-R
5-11
■
F3: Error Ratio
Measuring the Line Speed Error Ratio between Two Conveyors
• Basic Operation
The error ratio between the frequency of input A and the
frequency of input B is displayed as a percentage (%).
The measurement value can be obtained using the following
formula:
fa
: Frequency A (Hz)
fb
: Frequency B (Hz)
α
: Prescale value A
β
: Prescale value B
D
: Error ratio (%)
* When
fa
x
α
= 0, an overflow will be displayed at the upper limit.
(When
fa
x
β
= 0, 0 will be displayed.)
Example:
This example shows the prescale values and the prescale set
values for displaying the line speed (m/min) error ratio between
two conveyors using two rotary encoders, each of which outputs
100 pulses per rotation. (The circumferential length of the rotary
encoder is 0.125 m.)
Prescale value of Input A (
α
) = 0.125/100 = 0.00125 = 1.2500
×
10
−
3
Prescale value of Input B (
β
) = 0.125/100 = 0.00125 = 1.2500
×
10
−
3
Prescale value of Input A, X (mantissa):
ps.
ax
=
1.
2500
Prescale value of Input A, Y (exponent):
ps.
ay
=
10 -3
Prescale value of Input B, X (mantissa):
ps.
bx
=
1.
2500
Prescale value of Input B, Y (exponent):
ps.
by
=
10 -3
Encoder
Communications output
Remote monitor
To computer
Operation Configuration (Application)
×
100
fa
×
α
fb
×
β
−
fa
×
α
D
=
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: ......