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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
Selects the function of pulse train
Input
terminal RP.
Function
H6-01
0: Frequency reference
Selection
1: PID feedback value
2: PID setpoint value
Pulse Input
Sel
Pulse Train
Sets the number of pulses (in Hz)
Input Scaling
H6-02
that is equal to the maximum output
Pulse In
frequency E1-04.
Scaling
Pulse Train
Sets the output level when the pulse
Input Gain
train input is at 100% as a
H6-03
percentage of maximum output
Pulse Input
frequency E1-04.
Gain
Pulse Train
Sets the output level when the pulse
Input Bias
H6-04
train input is 0Hz as a percentage of
Pulse Input
maximum output frequency E1-04.
Bias
Pulse Train
Input Filter
Sets the pulse train input filter time
H6-05
Time
constant in seconds.
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
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Setting
Description
Range
0 to 2
1000
to
32000
0.0
to
1000.0
-100.0
to
100.0
0.00
to
2.00
Gain and bias
Filter
H6-03
1
1+sT
H6-04
0%
100%
H6-05
Scaling using H6-02
Adjusting Frequency References
Control Methods
Change
Factory
V/f
during
Setting
V/f
with
Operation
Vector
PG
0
No
A
A
1440Hz
Yes
A
A
100.0%
Yes
A
A
0.0%
Yes
A
A
0.10sec
Yes
A
A
=0
=1
=2
H6-01
Open
Open
Loop
Flux
Loop
Vector
Vector
1
2
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Master speed
frequency
PID feedback
PID target value
29
6-
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