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6 Applied Functions
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
6-4 Electronic Gear Function
6
6-4-1 Outline of the Function
6-4 Electronic Gear Function
• The electronic gear function enables the Servomotor to rotate at the number of pulses calculated by
multiplying the position command value by the electronic gear ratio.
• This function is enabled in position control mode.
*1 Switching among Electronic Gear Ratio Numerator 2 to 4 (Pn500 to Pn502) is performed using the electronic gear
switching input (GESEL1/GESEL2). The settings of GESEL1 and GESEL2 are as follows
Any values can be set in PN008, Pn009, and Pn010, however if an extreme electronic gear ratio is set,
the operation is not guaranteed. Set the electronic gear ratio to between 1/1,000 and 1,000.
6-4-1 Outline of the Function
6-4-2 Parameters Requiring Settings
Parameter
No.
Name Description Reference
Pn008 Electronic Gear Integer
Setting
Set the number of command pulses corresponding to 1 motor
rotation.
P. 7 - 7
Pn009 Electronic Gear Ratio
Numerator 1
Set the numerator of the electronic gear ratio.
If the set value is 0, the encoder resolution is automatically set
as the numerator.
• 1,048,576 for a 20-bit incremental encoder
Pn010 Electronic Gear Ratio
Denominator
Set the denominator of the electronic gear ratio.
Pn500 Electronic Gear Ratio
Numerator 2
*1
Set the numerator of the electronic gear ratio 2. P.7-42
Pn501 Electronic Gear Ratio
Numerator 3
*1
Set the numerator of the electronic gear ratio 3.
Pn502 Electronic Gear Ratio
Numerator 4
*1
Set the numerator of the electronic gear ratio 4.
GESEL1 GESEL2 Applicable parameter
OFF OFF Electronic Gear Ratio Numerator 1 (Pn009)
ON OFF Electronic Gear Ratio Numerator 2 (Pn500)
OFF ON Electronic Gear Ratio Numerator 3 (Pn501)
ON ON Electronic Gear Ratio Numerator 4 (Pn502)