Adjusting Frequency Reference Using Pulse Train Inputs - YASKAWA CIMR-G7U Technical Manual



Adjusting Frequency Reference Using Pulse Train Inputs

The frequency reference can be adjusted when b1-01 (Reference Selection) is set to 4 (Pulse Train Input). Set
the pulse frequency in parameter H6-02 to 100% reference, and then adjust the gain and bias accordingly
using H6-03 and H6-04.
Related Parameters
Name
Parameter
Number
Display
Terminal RP
Pulse Train
Input
Function
H6-01
Selection
Pulse Input
Sel
Pulse Train
Input Scaling
H6-02
Pulse In
Scaling
Pulse Train
Input Gain
H6-03
Pulse Input
Gain
Pulse Train
Input Bias
H6-04
Pulse Input
Bias
Pulse Train
Input Filter
H6-05
Time
Pulse In Filter
The following diagram shows the method for adjusting the frequency reference using pulse inputs.
RP
Cycle
measurement
Pulse
Fig 6.29 Frequency Reference Adjustments Using Pulse Train Inputs
Description
Selects the function of pulse train
terminal RP.
0: Frequency reference
1: PID feedback value
2: PID setpoint value
Sets the number of pulses (in Hz)
that is equal to the maximum output
frequency E1-04.
Sets the output level when the pulse
train input is at 100% as a
percentage of maximum output
frequency E1-04.
Sets the output level when the pulse
train input is 0Hz as a percentage of
maximum output frequency E1-04.
Sets the pulse train input filter time
constant in seconds.
Gain and bias
Filter
H6-03
1
1+sT
H6-04
0%
H6-05
Scaling using H6-02
Adjusting Frequency References
Change
Setting Factory
during
Range Setting
V/f
Operation
0 to 2 0 No A
1000
to 1440Hz Yes A
32000
0.0
to 100.0% Yes A
1000.0
-100.0
to 0.0% Yes A
100.0
0.00
to 0.10sec Yes A
2.00
=0
100%
=2
H6-01
Control Methods
Open Open
V/f
Loop Flux Loop
with
Vector Vector Vector
PG
1 2
A A A A
A A A A
A A A A
A A A A
A A A A
Master speed
frequency
=1
PID feedback
PID target value
29
6-