HI GYUS

IS THERE ANYONE WHO KNOWS HOW TO CONTROL VARIABLE DISPLACEMENT HYDRAULIC PUMPS VIA PROPORTIONAL HYDRAULIC VALVE?
USING PV CONFIG STUDIO 2.3.11175 AND 24VDC HH700(10KEY TOUCH), 24VDC PDM TO CONTROL SUN HYDRAULICS 770-224 (24VDC COIL) ON A PRDL PROPORTIONAL HYDRAILIC VALVE.
PLEASE SEE ATTACHED PDF.
SHOULD I USE PWM MODE OR POSITION MODE OR 10% TO 100% PDM COMMAND SETS?
WHAT CONTROL VOLTAGE WOULD THE COIL NEED TO INCREASE/DECREASE THE FLOW?
IS IT POSIBLE TO DAMAGE THE COIL WITH THIS TYPE IF CONTROL?

REGARDS

SHAUN