Maxsine EP3 AC Series, User Manual

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4.2 Position control mode
61
4. The relation between the electronic gear ratio and the turn number of servomotor
The relation between the electronic gear ratio and the turn number of servomotor is:
M P
N pul
t


se
number turn Servomotor
＝
Among them, pulse is input pulse number. For example, the incremental encoder line number
C=2500 line, N=20, M=3, pulse=1000, the calculation is:
) (
3
2
3 10000
20 1000
number turn Servomotor ring



＝
5. The relation between the electronic gear ratio and the speed of servomotor
The relation between the electronic gear and the speed of servomotor is:
M P
N Hz f
r
t

 
60 ) (
min) / ( speed Servomotor ＝
Among them, f is the repeated frequency of the input pulse; unit is Hz (pps). For example, the
encoder line number C=2500 line, N=3, M=1, f=100 kHz (kpps), the calculation is:
min) / ( 1800
1 10000
3 60 10 100
min) / ( speed Servomotor
3
r r


  
＝
6. Electronic gear ratio switching
Four groups of electronic gear numerator N are provided in the servo driver. The group can
be changed online by signal of GEAR1 and GEAR2 from DI inputs. However, the denominator
M is all the same.
DI signal[note] Numerator of input
electronic gear N
Denominator of input
electronic gear M
GEAR2 GEAR1
0 0 1
st
numerator(parameterP029)
Denominator
(parameterP030)
0 1 2
nd
numerator(parameterP031)
1 0 3
rd
numerator(parameterP032)
1 1 4
th
numerator(parameterP033)
Note: 0 indicates OFF; 1 indicates ON.