CHAPTER 3 OPERATION

3.4.2 Position Control (Pulse)

The shaft rotation position is controlled under position control according to the pulse input of the servo

amplifier.

The pulse operation procedure is shown below.

3

(3) Position control check

(4) Pulse amount check

(2) Position control setting

(1) Pulse setting

(1) Pulse setting

According to the pulse format of the host pulse generator, enter the following parameters.

No.

Name

Setting range

Default

value

Change

0: Differential input, command pulse/direction

1: Differential input, forward/reverse pulse

PA1_03

2: Differential input, A/B phase pulse

Command pulse input

method and form selection

10: Open collector input, command

pulse/direction

1 Power

11: Open collector input, forward/reverse pulse

12: Open collector input, A/B phase pulse

PA1_05

Number of command input

pulses per revolution

0: Electronic gear (PA1_06/07) is enabled.

64 to 1048576 [pulses]: Number of command

input pulses per revolution is enabled.

0

Power

PA1_06

Numerator 0 of electronic

gear ratio

1 to 4194304

16 Always

PA1_07

Denominator of electronic

gear ratio

1 to 4194304

1 Always

 To assign 4000 pulses per revolution of the servomotor

PA1_05 = 4000

 To connect a 5 mm ball screw directly and change the per-pulse mechanical system traveling

amount to 0.001 mm (18 bits)

Because (5/262144)×(PA1_06/PA1_07) = 1/1000

PA1_05=0, PA1_06=32768, PA1_07 = 625

3-8 Operation