About servo accuracy

Lynxmotion Servo Erector Set
1

HSR-5995TG:
1100uS up to 1900uS
800uS for 180degree = 0.225 per 1uS
Response of servo is 2uS (see Terminal)
So, angular accuracy is 0.45 degree

HS-5955TG:
750uS up to 2250uS
1500uS for 180 = 0.12degree per 1uS
But, responsability of servo is 7-8uS (see Terminal)
So, angular accuracy is 0.9 degree

Unfortunately, the accuracy of SEQ is only 0.9 degree.
So, exactness of 5995 twice as a high.

To utillize possibilities of servo, I do “export” of project from SEQ and divide angles on two (Excel). Then make “import” to SEQ and turn on “play”. 5995 works fine with double precision :smiley:

2

Is this with default deadband values? The deadband can be adjusted to a lower value with the servo porgrammer. This may increase the resolution of the servo. :slight_smile:

3

The more so, but I would like to trust, that problem of SEQ will be decided 8)

4

I do not understand. SEQ has the same resolution as the SSC-32, which is 1us, which is 0.09°…

(2500uS - 500uS) / 180° = 0.09°

5

Sorry! Really, SEQ is the best 8)
Can the servo programmer to extend range of 5995 to 750-2250?

6

No, sorry the Hitec Digital servos respond to 900uS - 2100uS. That can’t be altered. :frowning:

7

I construct the erector set for my film production studio.
What servo will do the maximal amount of the stably distinguished steps from an edge to the edge?

8

The analog 645 will have the most steps, 2000 / 180°, but all of the digital servos use 1200 / 140° out of the box, and 1200 / 180° after programming with the DSP… But the analog servo can be off by 10° under heavy load. :frowning: