YASKAWA VS MINI J7 User Manual download pdf (Page 42)

 Selecting Frequency Reference

Frequency reference can be selected by the following methods.

 Setting by operator

Select REMOTE or LOCAL mode in advance. For the method for

selecting the mode, refer to page 40.

LOCAL mode

Select command method by constant n07.

n07=0 :

Enables the setting by potentiometer on digital operator (initial setting).

Factory setting of the model with digital operator (without

potentiometer) is n07=1.

=1 : Enables the digital setting by digital operator, setting value is

stored in constant n21 (frequency reference 1).

• Digital setting by digital operator

Input frequency while FREF is lit (press ENTER after setting the numeric

value).

Frequency reference setting is effective when 1 is set to constant n08

instead of pressing ENTER key.

n08=0 :

Enables frequency reference setting by ENTER key (initial setting).

=1 : Disable frequency reference setting by ENTER key.

REMOTE mode

Select command method by constant n03.

n03=0 :

Enables frequency reference setting by potentiometer on digital

operator (initial setting). Initial setting of the model with digital

operator (without potentiometer) is n03=1.

=1 : Frequency reference 1 effective. (constant n21)

=2 : Voltage reference (0 to 10V) (See the figure below)

=3 : Current reference (4 to 20mA) (Refer to page 67)

=4 : Current reference (0 to 20mA) (Refer to page 67)

=6 : communication (Refer to page 74)

Example of frequency reference by voltage signal

FREQUENCY

SETTING POWER

+12V, 20mA

FC(0V)

2KΩ

MASTER SPEED

FREQUENCY

REFERENECE

(0 TO +10V)

n03 = 2 (Factory setting : 0)

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 122 123

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YASKAWA VS MINI J7 User Manual Page 42

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