Omron SMARTSTEP A Series User Manual page 212

Operation
Parameters Requiring Settings
■
Parameter No. Parameter name
Pn202 Electronic gear ratio
G1 (numerator)
Pn203 Electronic gear ratio
G2 (denominator)
Note 1. Set within the range 0.01 ≤ G1/G2 ≤ 100.
Note 2. These parameters become effective when the power is turned ON again after having been
turned OFF. (Check to see that the LED display has gone OFF.)
Note 3. With the default setting (G1/G2 = 4), the Servomotor will rotate once when 2,000 pulses are
input.
Note 4. One position deviation (deviation counter) display and positioning completed range pulse
make one input pulse. (This is called a command unit.)
Operation
■
• When set to G1/G2 = 8,000/1,000, operation is the same as for a 1,000-pulses/rotation Servomotor.
1,000 pulses
4-30
Set the pulse rate for the command pulse and Servomotor travel dis-
tance. When G1/G2 = 1, if the pulse (encoder resolution × 4) is
input, the Servomotor will rotate once (i.e., the internal driver will
rotate × 4). (See note 1.)
Servo Driver
Electronic
8,000 pulses
gear
G1
G2
8000
=
1000
Explanation
Servomotor
(Encoder resolution:
2,000 pulses/rotation)
1 rotation (2,000 pulses)
Chapter 4