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SERVO MOTOR ANGLE

omid hamdi
Senior

WHEN USED PULS ENCODER FOR FIRST TIME STARTUP HOW CAN UNDRESTAND ROTOR POSITION BECUSE SHAFT POSITION MIDLE 0 DEGREE TO 360 DEGREE

4 REPLIES 4
turboscrew
Senior III

All caps is a bad habit.

With no PWM the angle should be minimum. Just reset the increment count there.

For 20 ms (50 Hz) servos the pulse width is typically between 1 and 2 ms, with 1.5 ms as top center.

Review specification / datasheet for servos being used to understand their performance / expectations.​

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omid hamdi
Senior

hi

I know

my means after boot controller we cannot understand position shaft with pulse encoder only can understand how much change angle with this reason is pulse encoder

we can calculated how much move shaft not give us exactly angle

I like know how resolved this problem in servo system

in servo drive how understand first angle how much try start from this angle because if start wrong angle rotor as soon possible move to angle try to start in some application this is dangerous

Without some other sensor input going to be a tad difficult​.

If you want to know position out of reset you'll need an encoder that reports such.​

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