Hello again
About the communication....
Beware of the male female pin out
Attachment 250296
So on my similar communication cable i have and use for communication with similar drives i dismantle him and on PC side 2 is white (RX), 3 is brown (TX), 5 is black (GND) , 4 connected to 6 (Data terminal ready to Data set ready), and 7 connected to 8 (Request to send to Clear to send)
on DRIVE side i have RX (2) is brown, TX (3) is white and (5) GND is black...

Pc cable side should be good then u can try to get communication working...

Try 2-3 3-2 then 2-2 3-3 then if that does not work i would try to connect parallel wire form CN3 pin 5 to any other ground on CN3 (pin 1 or 4 or 6 or 7 or 8 ) (That could be the trick that the drive does not have GND (ground) potential for communication...First try connect CN3 pin 1 to pin 5 as i found in similar manual that is how they wire drive side - page 274... http://www.famotor.com/data/samsung/..._Manual_kor_v1[1].0.pdf )

Attachment 250300

Then try 2-3 3-2 then 2-2 3-3 and if that does not work then try removing wire from pin 5 from drive just to have ground pin 1 or 4 or 6 or 7 or 8 connected
Then try 2-3 3-2 then 2-2 3-3

Hope u will get it working because only other way is to use operator panel to input parameters...