Digital Power Amplifier
Series VRD350 and VRD355
Installation Manual
15
IA VRD UK.INDD RH 02.06
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
2.3. Block Diagram; Open Loop Control
(Software functions)
Open loop
P
ar
ameter functions:
U-par
ameter
:
displa
y of inter
nal measured v
alues
S-par
ameter
:
inter
nal command signals and r
amps
H-par
ameter
:
auxiliar
y par
ameters
P-par
ameter
:
oper
ating par
ameters
E-par
ameter
:
extended par
ameters (f
actor
y setting)