6-6
Frequency Reference
This section explains how to input the frequency reference.
îš‹ Selecting the Frequency Reference Source
Set constant b1-01 to select the frequency reference source.
îš„Related Constants
îš„Input 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 Digital Operator and Modes.
Fig 6.3 Frequency Setting Display
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
b1-01
Reference
selection
Set the frequency reference
input method.
0: Digital Operator
1: Control circuit terminal
(analog input)
2: MEMOBUS communica-
tions
3: Option board
4: Pulse train input
0 to 4 1 NoQQQQ180H
H6-01
Pulse train
input function
selection
0: Frequency reference
1: PID feedback value
2: PID target value
0 to 2 0 No A A A A 42CH
H6-02
Pulse train
input scaling
Set the number of pulses in
hertz, taking the reference to be
100%.
1000 to
32000
1440 Hz Yes A A A A 42DH
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