Selecting Frequency Reference - Omron VS mini J7 User Manual

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
MASTER SPEED
FREQUENCY
REFERENECE
42
FS
FREQUENCY
SETTING POWER
+12V, 20mA
(0 TO +10V)
FR
FC(0V)
2KΩ
n03 = 2 (Factory setting : 0)
IM