... digital control and communication, adopting up-to-state vector control, VF, digital control and field bus communication technology.2. Advanced full ... digital AC VF PLC control technology plus touch screen, integrated pneumatic, electric, ... kN 5850Max. drill line no.14Wireline diameter mm(in)42 (15/8)Sheave OD mm(in)1524 (60)Swivel center pipe ...