Servo drives costing 22 euros for 2 motors

Already connected H-bridges BTS7960 43 A to Linuxcnc

Tommy,
can i use this PWM drives with this babys and BRIH 40D1605A1000 Encoder on a MESA 7i98 Anything I/O Ethernet Controller?
Do i need a Daughtercard for this controller or can i wire it directly to the 7i98

Niko

Searching h bridge pwm driver for 110v 250w brushed dc motor.
What about this driver ?
www.electronics-lab.com/project/15a-100v...-half-bridge-driver/
I will combined with mesa and quadrature rotary encoder feedback.
For pid tuning FF1 / P / D is needed?

For this dual h-bridge driver what pwm frequency you used?
Also what frequency servo thread?
What P/D/FF1/FF2 values?

On your chinese pcb the letters on driver chip are readable or sanded?
Because my motors are 48V and want to replace mosfets that allow higher voltage
and if i know the h-bridge driver ic helps..

In your config base thread is 20khz so pwm freq is 10khz correct?
In this config pid is tuned for you machine or
is semituned just to run motors without load?
What procedure you follow to tune then?
This or something more to find correct D?
gnipsel.com/linuxcnc-old/tuning/servo.html

I have a ploter from 1990s with small brushed dc servos and currently my speeds are 1m/sec and acceleration 10m/s^2 with mesa ethernet card (1khz servo thread/20khz pwmgens) but motors are not tuned my f-error is set 10mm to not throw alarm for these speeds.
Because of low mass gantry i think can double these rapids but don't know what cost
will have to f-error. For these speeds 2khz or 4khz servo thread will improve f-error?