Omron ACCURAX G5 - Page 372

8-6
8-1 Basic Parameters
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
8
Parameters Details
 Set the number of command pulses corresponding to 1 motor rotation.
 If the set value is 0, Electronic Gear Ratio Numerator 1 (Pn009) and Electronic Gear Ratio
Denominator (Pn010) become valid.
 Set the electronic gear function.
· It is enabled when Pn008 is 0.
 The electronic gear can be used for the following:
· To set the amount of motor rotation or travel distance per input command pulse.
· To increase the nominal command pulse frequency by using a multiplier when the desired
motor speed cannot be achieved due to the limited pulse generation capability of the host
device (possible maximum output frequency).
 Electronic Gear Block Diagram:
*1. Numerator 2 to 4 is selected using the electronic gear switching (GESEL1 and GESEL2).
 The electronic gear ratio is set using the following equations.
If Numerator = 0: Numerator is automatically set to encoder resolution, and the number of
command pulses per rotation can be set in Pn010.
If Numerator ≠ 0:
Pn008
Electronic Gear Integer Setting
Setting
range
0 to 2
20
Unit pulse
Default
setting
10000
Power OFF
and ON
Yes
Position
Full closing
Pn009
Electronic Gear Ratio Numerator 1
Setting
range
0 to 2
30
Unit −
Default
setting
0
Power OFF
and ON
−
Position
Pn010
Electronic Gear Ratio Denominator
Setting
range
1 to 2
30
Unit −
Default
setting
10000
Power OFF
and ON
−
Position
GESEL1 GESEL2 Selected numerator
OFF OFF
Electronic Gear Ratio Numerator 1
ON OFF Electronic Gear Ratio Numerator 2
OFF ON Electronic Gear Ratio Numerator 3
ON ON Electronic Gear Ratio Numerator 4
Command
counts
*1
*1
*1
Internal
command
F
f
+
−
(resolution)
Feedback
counts
To error
counter
2
20
count/rev
or
2
17
count/rev
Denominator (Pn010)
Numerator 1 (Pn009)
Numerator 2 (Pn500)
Numerator 3 (Pn501)
Numerator 4 (Pn502)
Encoder resolution
Electronic Gear Integer Setting (Pn010)
Electronic gear ratio =