proportional valvegroups (pvg) - jereiresource.jerei.com/11230/13060718005612_0.pdf · 5 pvg...
TRANSCRIPT
![Page 1: Proportional ValveGroups (PVG) - Jereiresource.jerei.com/11230/13060718005612_0.pdf · 5 PVG Flexiblesolution –PVG’sincludemanyfunctions – PVB options -Flow, Pressures, spooltype,](https://reader031.vdocuments.us/reader031/viewer/2022022419/5a78621c7f8b9a93088e9350/html5/thumbnails/1.jpg)
© Blue Graphics Concept Sauer-Danfoss
© Blue Graphics Concept Sauer-Danfoss
Proportional Valve Groups (PVG)
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Nordborg, Denmark
Easley, South Carolina
Povazska Bystrica, Slovakia
Shanghai, China
PVG
Where do we produce PVG valves
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PVG
Current Product Family
PVG120
PVG100
PVG32
PVG16
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PVG
Product family
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PVG
Flexible solution – PVG’s include many functions
– PVB options - Flow, Pressures, spool type, ancilliary valves.
– Compensation options - Non, Pre, Post compensation
– Which PVG version to consider
– Pump type (Fixed/Variable displ.)
– Metering flow or pressure
– A large variety of controls
– Safety level considerations
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PVG
PVG16 recent introduction
• Smallest PVG in range
• Lowest cost option
• Minimal ancilliary features
• Uses PVP and PVS from PVG32
• Direct interface to PVB32
• Easy to combine PVG 16/PVG32
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PVG 32
PVG100
PVG
Combi-valve PVG32 and PVG100
• Easy to combine
• Extended flow options in the same valve group
• Pre and Post compin the one assembly
Interface 32/100
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PVG 32
PVG 32
Interface 32/120
PVG120
PVG120
PVG
Combi-valve PVG120 and PVG32
• Easy to combine
• Extended flow options in the same valve group
Interface 32/120
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PVG
Modular Build Concept
PVMD/F/H/R coversPVS endplates
App. 30 variants
PVBS spoolsApp. 800 variants
PVM handlesApp. 22 variants
PVB work sectionsApp. 80 variants
PVP inletsApp. 200 variants
PVE actuatorApp. 110 variants
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Technology shift – from mech. or hydr. activation to electrical activation and– Increase of digital (CAN) machine comunication– ...
Legislation– Emission regulations (TIER)– Safety regulations, performance level / SIL requirements– ...
Performance demands– Controllability– Total Machine control (working cycles, machine analysis etc.)– ...
Total cost of ownership (Machine to end customer)– Fuel Consumption– Service cost– ...
PVG
Current Market Trends
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Inlet PVP is the interface between the pump outlet and reservoir • Max pump flow -140lpm• Max pump pressure – 400bar• Pilot Supply – 13,5 bar for electrical actuation• Pilot Supply – 25 bar for hydraulic actuation• Max tank pressure – 40bar• LS dump feature as an option (PVPX)
Inlet Options
PVP32
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Inlet Options
PVP100 – Standard Options
• Closed center inlet modules (PVPV)– Pilot supply for electrical actuation
• Facility for pilot shut off
• Integrated priority valve (CF and Tank ports)
• Open center inlet modules (PVPF)– Pilot supply for electrical actuation
• Facility for pilot shut off
• Facility for full flow dump (electrical)
• BSP & SAE versions
• Gauge connection for– Accumulator
– Pilot pressure
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Inlet Options (PVG32)
PVP32 – Every valve section LS shuttles to PVP
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Inlet Options
Summary
• PVG32/16
– Same inlet
– For fixed or variable displacement pumps
– Electrical LS dump as an option (PVPX)
• PVG100
– For fixed or variable displacement pumps
– Integrated priority as an option
– Pilot cut-off and full flow dump as options
• PVG120
– For fixed or variable displacement pumps
– Hydraulic or electrical full flow dump
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Work Section Options
PVB32/ (120) – Cut through
PVE
PVM
PVLP LS relief
CompensatorSpool
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Operator Dependent Flow Control – Load Dependent•Why – Basic Directional Control – standard metering required •When – single setup functions without load changes
LowPressure
100%
HighPressure
Q
InputSignal
Load dependent valve system
a
b
? lbs.100 250 500 1000
lbs.
Work Section Options
PVB32 - no comp, no c/v
NB Individual section would be pressure compensated
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Regulated Flow Control with Load Check – Load Independent• Why – Repeatable metering control – precision metering required• When – repeatable and constant flow and metering for one or more
functions. (5% flow variation between 30bar and 400bar load changes)
100%
Q
InputSignal
a
b
? lbs.
Load pressureindependent
Load independent valve system
Work Section Options
PVB32 – with comp, with c/v
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Work Section Options
PVB32/120 - Load Sense R/V’s
Individual Adjustable Pressure Limiter (LS a/b)•Why – Limit max pressure to workport•When – one or more functions require low pressure operation.•Advantage – Low energy consumption (Low LS flow)
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Fixed Workport Reliefs•Why – Limit high intermittent workport pressures•When – Anticipated intermittent pressures that exceed actuator
and valve pressure ratings.
Work Section Options
PVB16/32/100/120 – Work port shock/a-cav
valves
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Work Section Options
PVB16 – recently released valve section PVB
• Load sensing DCV (Non- compensated)
• BSP and SAE versions
• Shock and anti-cavitation valve as an option
• Load drop check valve as an option
• Direct interface to PVG32
• Module width – 40mm
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Work Section Options
PVB100 – Standard Configurations
• All sections have integrated pressure compensator (post compensated)
• With/without Pilot Operated Checks • With/without shock valves in A & B port• BSP & SAE versions• Mechanical, Hydraulic or Electrical Actuators• All sections have T0 connection• High flow modules as an option
- (Special module with increased Main Spool diameter)
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Work Section Options
PVB120
• Pre-compensated sections only (no options)
• Shock and anti-cavitation valve as an option
• LS relief accessory as an option
– Internal relief valve
• High flow accessory (>180 l/min) as an option (240lpm)
• 400 bar port pressure
• Remote LS R/V port
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Work Section Options
Summary
• PVG16
– Non-compensated sections
– Shock and anti-cavitation valve as an option
• PVG32
– Non- or pre-compensated sections
– Shock and anti-cavitation valve as an option
– Individual LS A/B relief as an option
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Work Section Options
Summary
• PVG100
– Post-compensated sections (flowsharing)
– Shock and anti-cavitation valve as an option
• PVG120
– Pre-compensated sections
– Shock and anti-cavitation valve as an option
– Common LS relief as an option
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Main Spool
Progressive (standard) flow curves
Flow control: P = PLS A/B
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Main Spool
Linear (Option) flow curves
Flow control: P = PLS A/B
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Main Spool
Summary
• PVBS16– Progressive, Linear
– Flow control
• PVBS32
– Linear or Progressive
– Flow or pressure control
– Flow control on one port and pressure control on the other
• PVBS100
– Linear or Progressive
– Flow control
• PVBS120
– Progressive
– Flow control
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End Covers
Special options (PVG 32/16)
PVSI
Endcover with Pilot supply and Pilot dump
PVSD
Tank pressure protectionPVSK
Full flow cut-offvalve
PVSP
Priority module
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• Standard Tank module – PVT
• PVG100/32 Interface Module – PVTI
• Prepared for “P” Shock Valve.(PVLP)
• Available in BSP & SAE
• Optional LX port (LS connection for additional valves)
• Provides Valve Mounting End – M12 Thread
PVG100
End Cover Tank Module (PVT/PVTI)
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Actuators
PVM – Manual lever options
•With/without flow limiting screws•With/without base•With/without arm and base (Lever)•Standard in aluminum, option in cast iron
12.5 -+1
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Actuators
PVM option features – PVH/PVMD/F/R
PVMFPVMR
PVMD PVH
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Actuators
PVE – A Mechatronic Component
• Control, transducer and valves in the same enclosure
• Analogue or digital
• Simple wiring for remotecontrol
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Actuators
PVE – Connectors
PVE is in general available with three connector variants
DIN/Hirschman AMP Deutsch
IP 65 IP 66 IP 67
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• Multivoltage 11-32VDC and 12 or 24VDC
• Ratiometric or PWM control signals
• Internal closed loop controlPVEA/H/S/D/P/U/M
• Built in safety:
– Fault monitoring logic
– Directional indication
– LED
Actuators
PVE – Electronics
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Actuators
PVE – Control
PowerPp
≈60mm/S
Demand signal
Spool position
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Internal Closed loop control
p Spool pos.
Transducer
Solenoid
valve bridgeSpool or piston
Set point.
The PVE
•Compensate for Flow forces
•Excellent repeatability on positioning in
normal viscosity range (4 – 460 cSt)
•Immune to coil temperature variations
•Immune to Supply voltage variations
•Linear control (voltage vs. spool
position)
•Fault monitoring possible
•Plug and Perform capability
Actuators
PVE – Feedback Philosophy
Main spool
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Solenoid valve principle, type 1
…used in:
� PVEA / PVEA-DI
V INP.
TRD PWM
s
0.6[0.024] 0.6[0.024]
Actuators
PVE – The Hydraulic Principle
Sensitive to high flow forces
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1.0[0.039]
TRD
INP.sV
PWM
Solenoid valve principle, type 2
…used in:
� All the rest
Actuators
PVE – The Hydraulic Principle
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�PVEH
� Hysteresis typical ≈ 4%
� Fast reaction time
� DI available
� Float version
�PVEO
� ON/OFF control�Neutral or maximum stroke
� DI available
� PVEO-R�On/off with ramp
�PVES
� Hysteresis typical ≈ 0.5%
� Fast reaction time
� High resolution
� DI available
Actuators
PVE – Variant overview
�PVEA
� Only NC. NO replaced by orifices
� Hysteresis typical ≈ 2%
� DI available
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�PVEM
� Hysteresistypical ≈ 20%
� No faultmonitoring
� Float version
�PVEP
� PWM controlled
� PWM signal verified
� No current driver needed
� 11-32 VDC
� Float version
Actuators
PVE – Variant overview
�PVEU�Fixed 0-10V control�Variant as PVEH
�Hysteresis typical ≈ 4%�Variant as PVES
�Hysteresis typical ≈ 0%�Fast reaction time
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PVE Electrical Actuators
Overview
Variant Control type
Control signal
Typ. Hysteresis
Fault monitoring
DI-option
Float version
PVEO ON/OFF ON/OFF - % X
PVEA Proportional Ratiometric 2% X X
PVEH Proportional Ratiometric 4% X X X
PVES Proportional Ratiometric 0,5% X X
PVEM Proportional Ratiometric 20% X
PVEP Proportional PWM 0,5% X X
PVEU Proportional 0 - 10V 2 / 0,5% X
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PVE Electrical Actuators
Fault Monitoring
• All PVE’s have build-in fault monitoring
– Except PVEO, PVEO-R
– PVEM only on supply voltage
• Fault monitoring types:
– Input signal supervision• Supply voltage
• Control signal
– Transducer supervision
– Closed loop supervision (spool pos vs signal pos/ time)
• Passive/Active fault monitoring
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PVE Electrical Actuators
Fault Monitoring: Input Signal Supervision
0 %
11-32 volts = 100 %
Nominal supply voltage:
50 %
Acceptable input signal range for Vs:
0 %
100 %
50 %
15 %
85 %
Working input signal range:
0 %
100 %
50 %
15 %
85 %
25 %
75 %
Working
range
Working
range
Deadband 7%
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PVE Electrical Actuators
Safety Considerations are must
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PVED philosophy
�Distributed intelligence
�Individual module configuration
�ISO 11783 compliant (ISOBUS)
�Software functionalityAdvanced fault detection and registration
�Service tools
�Node-ID, Ramps, Curves, Error-log etc.
�SAE J1939
�CANOpen
Daisy chain
PVE Electrical Actuators
PVED – Digital versions
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�PVED-CC
� SAE J1939 protocol
� ISO 11783 compliant
� Service Tool available
� Simple wiring harness
�PVED-CX
� CANOpen protocol
� SIL-2 approved
PVE Electrical Actuators
PVED – Digital versions
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CAN bus communication system, well suited for connecting devices within a system or sub-system.
PVE Electrical Actuators
PVED – CAN network flexibility
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PVE Electrical Actuators
Summary
• Excellent repeatability on positioning
• Linear control (voltage vs. spool position)
• Plug and Perform capability
• Commonality of Platform design
– Same actuator for PVG32/100/120
• Fault monitoring for improved safety
• Direction indication as an option