ASDA-A2  Chapter 6  Control Mode of Operation 
Revision February, 2017  6-13 
P1-45    GR2  Gear Ratio (Denominator) (M) 
Address: 015AH 
015BH 
 
Operational 
Interface: 
Panel / Software  Communication 
Related Section: 
6.2.5 
 
Default: 
1 
 
Control 
Mode: 
PT/PR 
 
Unit: 
Pulse 
 
Range: 
1 ~ (2
31
-1) 
 
Data Size: 
32-bit 
 
Format: 
Decimal 
 
Settings: 
If the setting is wrong, the servo motor will easily have sudden 
unintended acceleration. 
Please follow the rules for setting: 
The setting of pulse input: 
 
Range of command pulse input: 1/50<Nx/M<25600 
NOTE
 
1) The setting value cannot be changed when Servo ON neither in 
PT nor in PR mode. 
 
 
Electronic gear provides simple ratio change of travel distance. The high electronic gear ratio 
would cause the position command to be the stepped command. S-curve or low-pass filter can 
be used to improve the situation. When electronic gear ratio is set to 1, the motor will turn one 
cycle for every 10000PUU. When electronic gear ratio is changed to 0.5, then every two pulses 
from the command will be refer to one PUU of motor encoder. 
 
 
Pulse 
input
f1
N
M
Position
command
f2
f2 = f1 x
N
M