Frequency Reference
This section explains how to input and set the frequency reference to the MxC.
Selecting the Frequency Reference Source
Set parameter b1-01 to select the frequency reference source.
Related Parameters
Parameter
Number
b1-01
Entering the Frequency Reference from the Digital Operator
The frequency reference can be entered from the digital operator when b1-01 is set to 0.
Input the frequency reference from the frequency reference setting screen display.
For details on setting the frequency reference, refer to Chapter 3 Digital Operator and Modes.
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6
Name
Description
Display
Frequency
Selects the frequency reference input
Reference
source.
Selection
0: Operator - Digital preset speed U1-01
or d1-01 to d1-17.
1: Terminals - Analog input terminal A1
(or terminal A2 based on parameter
H3-09).
Reference
2: Serial Com - Modbus RS-422/485 ter-
Source
minals R+, R-, S+, and S-.
3: Option PCB - Option card connected
on 2CN.
-DRIVE-
Fig 6.1 Frequency Setting Display
Setting
Default
Range
0 to 3
Rdy
-DRIVE-
Frequency Ref
Frequency Ref
U1-01= 0 0 0.0 0Hz
U1-01= 0 0 0.0 0Hz
(0.00 60.00)
"0.00Hz"
Control Methods
Change
Open
during
V/f
Loop
Run
Vector
1
No
Q
Q
Flux
Vector
Q