File: XDC3002_E 01/2010/eVIII • 8
8
Q (l/min)
I (%)
Q (l/min)
I (%)
Q (l/min)
XDC.3.*.01.N
(8 l/min P
→→
→→
→ A/B)
XDC.3.*.01.N
(15 l/min P
→ →
→ →
→ A/B)
XDC.3.*.01.N
(25 l/min P
→→
→→
→ A/B)
XDC.3.C.01.N... XDC.3.C.03.N... XDC.3.C.01.P...
XDC.3.A.01.N... XDC.3.A.03.N... XDC.3.A.01.P...
XDC.3.*.01.N
(40 l/min P
→→
→→
→ A/B)
I (%)
Q (l/min)
I (%)
∆p = 10 bar
With
AM.3.H.3V.P1.08
(∆p »8 bar)
∆p = 5 bar
∆p = 10 bar
∆p = 10 bar
∆p = 5 bar
∆p = 10 bar
∆p = 5 bar
INPUT SIGNAL CURVES - FLOW RATE
ORDERING CODE
The valves XDC serie 2 control the direction and the volume of the flow according to the feeding
current to the proportional solenoid. The position transducer type LDVT (inductive position
transducer) monitors the actual position of the spool.
In the electronic card (type SE.AN.21.RS...serie 3) the error between the actual position and
the reference signal is used to obtain a greater precision of the spool positioning, reducing also
considerably the hysteresis and the repeatibility error of the valve. For a more accurate flow
control, 2 or 3-way pressure compensators modular plate design are available.
The shown flow rates are typical for one line operation (e.g. from P to B). By using the valve
with the base for capacity doubling type BC.3.07 greater capacity can be obtained.
XDC.3... PROPORTIONAL DIRECTIONAL VALVES
CLOSED
LOOP POSITION CONTROL
XDC Proportional directional valve
with closed loop position control
3 CETOP 3/NG6
* A = Single solenoid
C = Double solenoid
** Type of spool (null position)
01 =
03 =
* Flow path control
(see hydraulic symbols table)
N = symmetrical
P = meter in (only with 01 spool)
* Flow rating
l/min (∆p 10 bar)
1 = 8 l/min
2 = 15 l/min
3 = 25 l/min
6 = 40 l/min
F Max. current at solenoid: 1.76 A
00 No variant
2 Serial No.
Registered mark for industrial environment with reference to the electromagnetic
compatibility.
European norms: EN50082-2 - general safety norm - industrial environment;
EN50081-1 -emission general norm - residential environment
XDC.3...002
PROPORTIONAL SOLENOID CH. VIII PAGE 9
SE.3.AN21.RS...03 CH. IX PAGE 13
AM.3.H... CH. VIII PAGE 16
AM.5.H... CH. VIII PAGE 17
BC.3.07... CH. VII PAGE 12
CONFIGURATION FOR DOUBLE FLOW RATE
XDC.3.A...
BC.3.07
Standard subplate
Notice:
in order to control the valve XDC3...serie 2
it need to use the electronic card
SE.AN.21.RS...serie 3, in exclusive way (See
Ch. IX).
In order to reduced the un-
loading pressure for rated
flow version at 40 l/min we
advise to use the 3 way type
AM.5.H.3V... hydrostat.
File: XDC3002_E 01/2010/eVIII • 9
8
TRANSDUCER ELECTRICAL CONNECTIONS
SOL_XDC - 01/2000/e
OPERATING SPECIFICATIONS OF VALVE WITH TRANSDUCER
Max. operating pressure ports P/A/B 350 bar
Dynamic pressure port T 210 bar
Static pressure port T 210 bar
Nominal flow 8 / 15 / 25 / 40 l/min
Duty cycle Continuous 100% ED
Type of protection (depending on the connectors used) IP 65
Performance curves See diagrams
Fluid viscosity 10 ÷ 500 mm
2
/s
Fluid temperature -20°C ÷ 75°C
Ambient temperature -20°C ÷ 70°C
Max. contamination level class 7 to 9 in accordance to NAS 1638 with filter ß
10
≥75
Weight XDC.3.A... (single solenoid) 1,94 Kg
Weight XDC.3.C... (double solenoid) 2,55 Kg
Max. current 1.76 A
Solenoid coil resistance at 20°C (68°F) 4.55 Ω
Solenoid coil resistance when hot 7.34 Ω
Hysteresis P/A/B/T with pressure compensator AM.3.H.3V... <1%
Transient function with stepped electrical input signals ∆p = 5 bar (P/A)
0 ÷ 100% 65 ms
100% ÷ 0 75 ms
Repeatibility <0,5%
Frequency response -3db (Input signal ±25% Vmax) 10 Hz
Insulation class wire H
Weight of solenoid 0,6 Kg
Operating specifications are valid for fluids with 46 mm
2
/s viscosity at 40°C, using the
SE3AN21RS... serie 3 ARON electronic control unit powered to 24V.
XDC.3... PROPORTIONAL DIRECTIONAL VALVES CLOSED LOOP POSITION CONTROL
AMPLIFIER UNIT AND CONTROL
SE.3.AN.21.RS...serie 3 - Electronic card
EUROCARD format for control of the propor-
tional valve equipped with transducer
AM.3.H.2V.P1 / AM.3.H.3V.P1
AM.5.H.3V.P1 (*)
Hydrostats 2 or 3 way
(*) for rated flow XDC3 version at 40 l/min ) only
POSITION TRANSDUCER SPECIFICATION
Electrical measuring system LVDT
Nominal stroke 6 mm
Electrical connection M12x1
Insulation
(depending on the connector used) IP65
Frequency response 500 Hz
Linearity tolerance ±1%
1 = Supply 18VDC ÷ 36VDC
3 = Mass
2 = Output 2V ÷ 10V
PROPORTIONAL
SOLENOID
OVERALL DIMENSIONS
Support plane
specifications
Fixing screws UNI 5931 M5x25
(min. 8.8 material screws are recommended)
Tightening torque 4 ÷ 5 Nm / 0.4 ÷ 0.5 Kgm
TRANSDUCER
