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Frequency Reference
This section explains how to input the frequency reference.
K K K K
Selecting the Frequency Reference Source
Set parameter b1-01 to select the frequency reference source.
nRelated Parameters
Param-
eter
Num-
ber
Reference selection
b1-01
Reference Source
Pulse train
input function selection
H6-01
Pulse Input Sel
Pulse train
input scaling
H6-02
Pulse Input Gain
nInput the Reference Frequency from the Digital Operator
When b1-01 is set to 0, you can input the reference frequency from the Digital Operator.
Input the reference frequency from the Digital Operator's reference frequency setting display.
For details on setting the reference frequency, refer to Chapter 3.
-6
6
Name
LCD Display
Set the frequency reference source
0: Digital Operator
1: Control circuit terminal (analog input)
2: RS-422A/485 communications
3: Option Card
4: Pulse train input
0: Frequency reference
1: PID feedback value
2: PID target value
Set the number of pulses taking the reference to be
100%, in Hz.
Fig 6.3 Frequency Setting Display
Setting
Description
Range
0 to 4
0 to 2
1000 to
32000
Control Methods
Change
Factory
during
V/f
Setting
Opera-
V/f
with
tion
PG
1
No
Q
Q
0
No
A
A
1440 Hz
Yes
A
A
Open
Loop
Vec-
tor
Q
A
A
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Troubleshooting
