Problem with delay DIR-STEP

Mehmet

Dear ytliu and nikolay
First of all. Thank you for a lot efforts for find a good solution about a problem. Everyday I am following your posts.
I am learning a lot of things from your posts (systems, stepper drive, signal ,step-dır, step lose etc...)

I am a simple DDCNC 2.1 user , but i don't have a cnc. I need a lot of parts like stepper driver, screws, spinle ..For now, I have a DDCNC 2.1 controller.
I want to make cloosed loop cnc so , next week order a Lichuan closed stepper driver. If you are use closed loop step (with encoder) never losing step ?  Is it correct ?
I am not sure but Lichuan stepper driver's Logic input current : 10 mA at 60vDC @200kHz  Ia=(5V-0.7V)/(270+100)=11.6ma > 10mA. (formula from ytliu). is it ok. for controller dncnc?

I need your experiences, If i use this closed loop  driver , machine doesn't lose steps when fast changing direction. I it correct or not?   
Should I use a pulley belt system for solve  torque , microstepping , step loses.

http://servo.xlichuan.com/prod_v ... 166&FId=t3:69:3

Soory for my english.I hose so you understand..

Mehmet

Dear nikolay / ytliu
Please, I need your helps.I will order Leadshine HBS86H cloosed loop step driver. Do you have any
experience for this driver? In the manual of driver, there are some technical notes. But, I don't want a problem like step lose. DDCSV 2.1 and HSB86H driver matching perfectly ?

-  power supply capacity? Which one is the good for the controller? In the table ;  60VDC 10mA  / 100VDC 16mA
-  In the manual, PUL/DIR notes: "Double pulse mode (CW/CCW) Software configuable" ? is it a problem for ddcsv 2.1? You are talking  a problem about CCW/CW.
-  R=0 if VCC=5 , I am not sure, Should I add resistor between controller-driver  or remove series resistor (101=100 ohm) form controller? or nothing.

I will be pleased if you help me
-

Mehmet

All of machine parts are second hand ; stepper motors (nema 34 with encoder) , vfd , screws +nuts , etc. I am not millionaire