continental hydraulics high performance, servo

VED03MX
HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
5505 WEST 123RD STREET • SAVAGE, MN 55378-1299 / PH: 952.895.6400 / WWW.CONTINENTALHYDRAULICS.COM
VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
CONTINENTAL HYDRAULICS
VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
VED03MX
HIGH PERFORMANCE PROPORTIONAL DIRECTIONAL CONTROL VALVE, SERVO-SOLENOID, SPOOL/SLEEVE DESIGN
DESCRIPTION
Continental Hydraulics VED03MX, High Response
4-way servo-proportional valve with precision lapped Spool / Sleeve,
position sensing LVDT and Enhanced On-Board Digital Amplifier.
These valves conform to NFPA D03 and ISO 4401 mounting
standards.
FEATURES and OPERATION
The VED03MX valve is a 4-way (3 position + Fail-Safe Position)
Servo-Proportional valve.
Spring offset and precision Line to Line Spool/Sleeve for no delay
when crossing “null”, resulting in high dynamic performance and
increased control when used in precision Positioning and Pressure
control applications.
•
•
•
•
•
160 Hz high frequency response operation
On-Board Digital Control resulting in extremely low Phase Lag
and high frequency operation
3 position with Fail-Safe 4th Position
High Precision Lap Spool in Sleeve design provides zero
crossing delay at Null
Spool position feedback
TYPICAL PERFORMANCE SPECIFICATIONS
MAXIMUM
OPERATING
PRESSURE
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5000 psi (350 bar)
T Port
3600 psi (250 bar)
NOMINAL RATED FLOW
(70 bar ∆p P-T)
5 - 10 - 20 - 40 lpm
MOUNTING SURFACE
NFPA D03
ISO 4401-03-02-0-05
HYSTERESIS
THRESHOLD
STEP RESPONSE
FREQUENCY RESPONSE
CONTAMINATION LEVEL
(ISO class)
VISCOSITY
% of Q max
< 0.2%
< 0.1%
8 ms
160 Hz at 5% signal
preferred
16/14/11
maximum
17/15/12
25 cSt recommended
(5-400 cSt viscosity range)
Ambient
-4 to +140° F
-20 to +60° C
Fluid
-4 to +180° F
-20 to +80° C
TEMPERATURE
RANGE
WEIGHT
2
P - A - B Ports
5.7 lbs (2.6 kg)
IDENTIFICATION CODE
D03
SIZE
D- D
VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
VED03MX - - - -
DESIGN LETTER
HIGH RESPONSE
SPOOL IN SLEEVE
SEAL
FUNCTION
A
CONNECTION
Buna (STD)
OBW
AZC
G
Viton
OBC
On board electronics PIN C Enable
Monitor signal PIN F to PIN B
OBM
On board electronics Internal Enable
Monitor signal PIN F to PIN C
NOMINAL FLOW
(with Dp 35 bar/Land)
FZC
05
5 l/min (1.3 gpm)
10
10 l/min (2.6 gpm)
20
20 l/min (5.3 gpm)
40
40 l/min (10.6 gpm)
10ZC
FAIL SAFE POSITION
When a power failure occurs, the electronics de-energize the solenoid and
the spool will take the fail safe position by means of the centering spring.
On board electronics Internal Enable
Monitor signal PIN F to PIN B
REFERENCE SIGNAL
E0
Voltage ± 10 V (STD)
E1
Current 4-20 mA
TYPICAL ORDERING CODE:
VED03MX-AZC-20-A-OBMEOD-D
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VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
PERFORMANCE CURVES
Curves obtained with mineral oil viscosity of 170 sus (36 cSt) at 122°F (50°C) and dedicated OBE
REFERENCE / FLOW RATE CURVE
FLOW RATE CURVE ACCORDING TO ∆p
Reference signal [%]
Typical flow rate curves at constant ∆p = 70 bar P-T according to the
reference signal.
NOTE: with positive reference signal connected to pin D the valve
regulates P - A / B - T.
The diagram states the maximum valve controlled flow rate
according to the pressure drop between the P and T ports.
PRESSURE GAIN (LZ)
The diagram shows the valve pressure gain, expressed as % of the
ratio between the port pressure variation in A or B (∆p AB) and the P
system pressure, according to the reference signal. In practice, the
pressure gain states the valve reaction towards external
disturbances aimed at changing the actuator position.
Reference signal [%]
FREQUENCY RESPONSE
STEP RESPONSE TIME
100
0
90
-3
-6
90
-9
60
45
30
-12
1
100
10
200
0
Frequency [Hz]
80
70
Stroke [%]
120
Phase Lag [degrees]
Amplitude Ratio [dB]
3
60
50
40
30
20
10
0
± 5% Signal
± 25% Signal
± 100% Signal
0
10
20
0
10
20
Time [ms]
Due to inherent phase lag characteristics of the overall system and machine, common industrial control practices recommends, as rule of thumb,
to utilize the 45°, or less phase lag frequency ratings, when applying Servo and Proportional valves to any position control loop for stable,
repeatable and consistent control.
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OVERALL AND MOUNTING DIMENSIONS
VED03MX
Air bleed port
Allen key: 3
Tightening
torque 2.5 Nm
Main connection
7-pin male
MIL-C-5015-G
DIN 43563 metal)
VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
Dimensions in mm [IN]
Mating connector
to be ordered
separately
Air bleed port
NFPA D03
ISO 4401-03-02-0-05
Mounting surface with
sealing rings: 4 pcs.
AS568-012 90 Shore A
In order to avoid electromagnetic noises and fulfill the EMC
regulations, a 7-pin metal plug according to MIL-C-2015 G
should be used instead of the standard plastic 6+PE plug.
Control solenoid
with position
trasducer
All air should be bled out of the valve prior to applying
valve into fully automatic conditions.
The plug is not supplied, but can be ordered separately.
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VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
ELECTRICAL CHARACTERISTICS
The proportional valve is controlled by a digital amplifier (driver), which incorporates a microprocessor that
controls all the valve functions.
THE STANDARD VALVE IS SET AT THE FACTORY WITH:
- UP/DOWN ramp at zero value
- Max valve opening (100% of spool stroke)
It is possible to customize these and others parameters using the optional kit, VEA-PB7 to be ordered
separately (see related literature).
THE DIGITAL DRIVER ENABLES THE VALVE TO REACH BETTER PERFORMANCE
COMPARED TO THE ANALOG VERSION, AND GIVES:
-
Reduced response times
Optimization and reproducibility of the characteristic curve, optimized in factory for each valve
Complete interchangeability in case of valve replacement
Opportunity to set, via software, the functional parameters
Opportunity to perform a diagnostic program by means of the VEA-PB7 program box
High immunity to electromagnetic interference
The electronic card is available with (OBC) or without (OBW/OBM) external enabling signal feature.
POWER SUPPLY
24V DC (19V to 35V, ripple max 3Vpp)
ABSORBED POWER
35 VA
MAX CURRENT
2.6 A
DUTY CYCLE
100%
MAIN CONNECTOR
7-pin MIL-C-5015 G (DIN 43563)
Emissions
IEC EN 61000-6-4
Immunity
IEC EN 61000-6-2
IEC 60529
IP 65 / 67
ELECTROMAGNETIC COMPATIBILITY (EMC)
PROTECTION AGAINST ATMOSPHERIC AGENTS
ELECTRICAL PROTECTION
Overload electronics overheating, LVDT sensor error, cable break
power failure or < 4 mA
voltage (EO)
V DC
10 (Impedance Ri > 11 kΩ)
current (E1)
mA
4-20 (Impedance Ri = 58 Ω)
voltage (EO)
V DC
10 (Impedance Ro > 1 kΩ)
current (E1)
mA
4-20 (Impedance Ro = 500 Ω)
COMMAND SIGNAL
MONITOR SIGNAL
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E0 VERSION - VOLTAGE REFERENCE SIGNAL
COMMAND
MONITOR
-10V
-10V
0V
0V
Pin
Value
A
+10V
+10V
OBC
24 V DC
B
0 V
C
D
± 10 V
F
± 10 V
E
0 V
PE
GND
OBW
OBM
Supply voltage
Enable
24 V DC
non used
-
PIN F reference
0V
Command (differential input)
PIN D reference
Monitor (0V reference: pin B)
Ground (earth)
Monitor
VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
Reference signal required is ± 10 volt.
The monitor signal is ± 10 volt. This signal is available 0.5 sec after card is powered on OBW / OBM.
E1 VERSION - CURRENT REFERENCE SIGNAL
Reference signal required is 4-20 mA. If the current value drops below 4 mA, the card will shut down until the correct signal has been applied.
The monitor signal is 4-20 mA. This signal is available 0.5 sec after card is powered on OBW / OBM.
COMMAND
MONITOR
4 mA
4 mA
Pin
A
B
C
12 mA 20 mA
12 mA 20 mA
Values
24 V DC
0 V
D
4 ÷ 20 mA
F
4 ÷ 20 mA
E
PE
0 V
GND
version A
version B
version C
Supply Voltage
Enable
24 V DC
not used
-
Command
PIN D reference
Monitor (0V reference: pin B)
Ground (Earth)
PIN F reference
0V
Monitor
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VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
OBC / OBW / OBM VERSIONS
OBC version is programmed for use of an external 24 volt Enable signal applied at Pin C to allow the valve to
function. The Monitor signal output is referenced between Pin F and Pin B.
OBW version is programmed for Internal enable, power for enable is taken directly from the power supply. The
power to the valve must be turned off to disable the valve. The Monitor signal output is referenced between
Pin F and Pin B.
OBM version is programmed for Internal enable, power for enable is taken directly from the power supply. The
power to the valve must be turned off to disable the valve. The Monitor signal output is reference between Pin
F and Pin C for PIN to Pin interchangeability with other manufacturers.
OBC ON-BOARD FUNCTION
OBW ON-BOARD FUNCTION
OBM ON-BOARD FUNCTION
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APPLICATION DATA
Cst
10
14.5
32
36
43
54
65
76
86
108
216
324
400
SUS
60
75
150
170
200
250
300
350
400
500
1000
1500
1900
0.77
0.81
0.97
1.00
1.04
1.10
1.15
1.20
1.24
1.31
1.56
1.72
1.83
FLUID
VISCOSITIES
MULTIPIER
Use mineral oil-based hydraulic fluids HL or HM type, according to ISO 6743-4. For these fluids, use NBR
seals. For fluids HFDR type (phosphate esters) use FPM seals (code G). For the use of other kinds of fluid such
as HFA, HFB, HFC, please consult our technical department.
Using fluids at temperatures higher than 180 degrees F causes the accelerated degradation of seals as well
as degradation of the fluids physical and chemical properties.
From a safety standpoint, temperatures above 130 degrees F are not recommended.
INSTALLATION
VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
FLUIDS
All pressure drops shown on these data pages are based on 170 SUS fluid viscosity and 0.87 specific gravity.
For any other specific gravity (G1) the pressure drop (∆P) will be approx. ∆P1 = ∆P (G1/G). See the chart for
other viscosities.
VED03MX valves can be installed in any position without impairing correct operation.
Ensure that there is no air in the hydraulic circuit. Reference page 5.
Valves are fixed by means of screws or tie rods on a flat surface with planarity and roughness equal to or
better than those indicated in the relative symbols. If minimum values are not observed, fluid can easily leak
between the valve and support surface.
7 PIN PLUG
VEA-3P7P-A
Straight plug 7-pin plastic housing
264893
VEA-3P7M-A
Straight plug 7-pin metal housing
265947
Valve only
1008406
BOLT KIT
BD03-125
NOTES:
1. Bolt kit consists of: qty. 4 10-24 NC screws / qty. 4 # 10 lock washer
2. The recommended torque value for fasteners is: 4 lb.ft (5.4 Nm)
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VED03MX - HIGH PERFORMANCE, SERVO-PROPORTIONAL DIRECTIONAL CONTROL VALVE
ABOUT CONTINENTAL HYDRAULICS
Rugged, durable, high-performance, efficient—the reason Continental Hydraulics’ products are used in
some of the most challenging applications across the globe. With a commitment to quality customer
support and innovative engineering, Continental’s pumps, valves, power units, mobile and custom
products deliver what the markets demand. Continental has been serving the food production, brick
and block, wood products, automotive and machine tool industries since 1962. Learn how our
products survive some of the most harsh environments.
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5505 WEST 123RD STREET • SAVAGE, MN 55378-1299 / PH: 952.895.6400 / FAX: 952.895.6444 / WWW.CONTINENTALHYDRAULICS.COM
FORM NO. 1021357. REV. 03/2016. © 2014 CONTINENTAL HYDRAULICS. ALL RIGHTS RESERVED. PRODUCT SPECIFICATIONS AND APPEARANCE ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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