6
IA VRD UK.INDD RH 02.06
Digital Power Amplifier
Series VRD350 and VRD355Installation Manual
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
1.2. Ordering Code
Type
Digital
Amplifier for
Proportional
Valves
Module External
Closed
Loop
Solenoid/
Sensor
Type
Sensor
Assignment
Solenoid
Type
Function
* The values for actual value
signals apply to directio-
nal valves.
Design
Series
Assignment Table
1)
without feedback on valve
2)
with feedback on valve
VRD
Code Module
350
with front plate
display / and ope-
rating elements
355
without front plate
display / and ope-
rating elements
Code Type
0 controlled
1 regulated
Code Solenoid type
1 0.8A
3 2.7A
5 3.5A
7
2.7A
(RLL-central threa-
ded solenoid)
Code
Solenoid / sensor
version
0
Flange solenoids
(or. pos. transdu-
cer with 6V (zero
voltage)
1
Central threaded
solenoids (or
position indicator
with 7.5V null
voltage)
Code Ext. closed loop*
0 without
0 0...±10V
1 4...20mA
2 0...20mA
Code
Sensor assignment
0
1)
controlled
1
2)
Flow valves
NG6
2
2)
Directional valves NG6
3
2)
Directional valves NG10
4
2)
Directional valves NG16
5
2)
Directional valves NG25
6
2)
Directional valves NG32
7
1)
ext.
closed loop
(DC valves)
8
1)
ext.
closed loop
(press./flow valves)
9
2)
Directional valve
D91FS
Code Function
- controlled
R regulated
Proportional DC Valves Amplifier card for valves
Type Description Solenoid Size
without position
transducer
with position
transducer
w/o pos. transducer,
with ext. closed loop
DC Valves
D*1FW L 10...32 VRD35*-030-00 — VRD35*-130-R7*
D*1FS L 10...25 — VRD35*-130-R*0 —
RLL G09 6 VRD35*-071-00 VRD35*-171-R20 VRD35*-171-R7*
WLL G09 6 VRD35*-031-00 VRD35*-131-R20 VRD35*-131-R7*
WLL — 10 VRD35*-050-00 VRD35*-150-R30 VRD35*-150-R7*
Pressure
Valves
VB — 6 VRD35*-010-00 — VRD35*-110-R8*
VBY — 6...10 VRD35*-010-00 — VRD35*-110-R8*
VMY — 6...10 VRD35*-010-00 — VRD35*-110-R8*
Flow Valves DUR — 6 VRD35*-010-00 VRD35*-110-R10 VRD35*-110-R8*
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