Table of Contents
4.16 Frequency setting by analog input (terminal 1, 2, 4)
Purpose
Function assignment of analog input
terminal
Selection of voltage/current input
(terminal 1, 2, 4) Perform forward/
reverse rotation by analog input
Adjust the main speed by analog
auxiliary input
Adjustment (calibration) of analog
input frequency and voltage (current)
4.16.1 Function assignment of analog input terminal (Pr. 858, Pr. 868)
Function assignment of terminal 1 and terminal 4 of analog input can be selected and changed by parameter.
Parameter
Name
Number
858
Terminal 4 function assignment
868
Terminal 1 function assignment
⋅ For the terminal 1 and terminal 4 used for analog input, frequency (speed) command, magnetic flux command,
torque command, etc. can be selected.
Functions change according to the control mode as in the table below.
Terminal 1/ Terminal 4 function
Setting
Pr. 858 Terminal 4 function
assignment
value
0
Frequency command
(Initial value)
(AU signal-ON)
4
Stall prevention operation level input
9999
:No function
REMARKS
⋅ When "4" is set in both Pr. 868 and Pr. 858, terminal 1 is made valid and terminal 4 has no function.
⋅ When "4" (stall prevention) is set in Pr. 868, functions of terminal 4 become valid independently of whether the AU terminal is on
or off.
♦ Parameters referred to ♦
Advanced magnetic flux vector control
Parameter that must be Set
Terminal 1 and terminal 4 function
assignment
Analog input selection
Analog auxliary input and
compensation (added
compensation and override
function)
Bias and gain of frequency setting
voltage (current)
Initial Value
0
0
Pr. 858 Terminal 1 function
Frequency setting auxiliary
Stall prevention operation level input
Refer to page 68
Frequency setting by analog input
Pr. 858, Pr. 868
Pr. 73, Pr. 267
Pr. 73, Pr. 242, Pr. 243,
Pr. 252, Pr. 253
Pr. 125, Pr. 126, Pr. 241,
C2 to C7 (Pr. 902 to Pr. 905)
Setting Range
Select the terminal 4 function.
0, 4, 9999
(Refer to the following list)
Select the terminal 1 function.
0, 4, 9999
(Refer to the following list)
assignment
(terminal 1, 2, 4)
Refer to Page
165
166
169
172
Description
165
4
Hide quick links:
Table of Contents
