Electronic gear for input commands Through the electronic (Page 48 / 102) Maxsine EP100 AC SERVO User Manual

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4.2.3 Electronic gear for input commands

Through the electronic gear user can define that one input command pulse will cause an adjustable movement

of mechanical device. Therefore, the host controller does not have to consider that the gear ratio in the mechanical

system and the encoder line number of the servomotor .The electronic gear variable is illustrated in the following

table.

Variable

Explanation

Lines of encoder

Resolution of encoder (pulse/rev)

Ratio of reducer

ΔP

One command pulse travel

equivalent

Value of this driver

2500

=4×C

=4×2500

=10000(pulse/rev)

R=B/A，here

A：turn number of servomotor

B：turn number of load shaft

command pulse numbers for one

turn of the load shaft

Pitch Pitch of ball bearing screw (mm)

Diameter of rolling cylinder (mm)

Calculating formula：

Electronic gear ratio( N ) =

Resolution in one turn of encoder(Pt)

M Command pulse number in one turn of load shaft(Pc)× reducer ratio(R)

Here,

Command pulse number in one turn of load shaft (Pc) = Movement quantity in one turn of load shaft

Movement quantity in one command pulse

The calculated result will be abbreviated and make the numerator and the denominator smaller or equal to 32767

integer values. At last, the result must be in the range of 1/50<N/M<200 and write to the parameter list.