proportional valvegroups (pvg) - jereiresource.jerei.com/11230/13060718005612_0.pdf · 5 pvg...

© 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


– Integrated priority as an option

– Pilot cut-off and full flow dump as options

• PVG120


– 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.


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


PVB32 – with comp, with c/v

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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.


PVB16/32/100/120 – Work port shock/a-cav

valves

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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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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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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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Summary

• PVG16

– Non-compensated sections

– Shock and anti-cavitation valve as an option

• PVG32

– Non- or pre-compensated sections


– Individual LS A/B relief as an option

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Summary

• PVG100

– Post-compensated sections (flowsharing)


• PVG120

– Pre-compensated sections


– 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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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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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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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


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


PVED – Digital versions

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CAN bus communication system, well suited for connecting devices within a system or sub-system.


PVED – CAN network flexibility

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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

proportional valvegroups (pvg) - jereiresource.jerei.com/11230/13060718005612_0.pdf · 5 pvg...

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