Danfoss PVE Series 4 - General Information; Abbreviations for PVG;PVE; PVG Product Literature References

General Information
List of abbreviations for PVG/PVE...............................................................................................................................................5
Literature reference for PVG products......................................................................................................................................6
Standards for PVE............................................................................................................................................................................. 7
PVE with connector variants.........................................................................................................................................................7
Warnings..............................................................................................................................................................................................7
PVE series 4 introduction...............................................................................................................................................................7
PVE stands for PVE actuator .........................................................................................................................................................8
Overview..............................................................................................................................................................................................9
Functionality
PVG functionality............................................................................................................................................................................10
PVE functionality............................................................................................................................................................................ 10
Hydraulic subsystems............................................................................................................................................................. 10
Variant of hydraulic subsystem: PVEA...............................................................................................................................12
Variant of hydraulic subsystem: PVHC..............................................................................................................................12
Mechanical subsystem............................................................................................................................................................13
Electronic subsystem...............................................................................................................................................................13
Safety and monitoring
Fault monitoring and reaction..................................................................................................................................................15
Active fault reaction is activated after 500 ms of error (PVEA: 750 ms). .............................................................. 15
Passive fault reaction is activated after 250 ms of error (PVEA: 750 ms).............................................................. 15
The solenoid valves are disabled when:...........................................................................................................................16
Spool position feedback (-SP)....................................................................................................................................................16
Direction indication feedback (-DI)......................................................................................................................................... 17
Solenoid disabling function (-NP)............................................................................................................................................18
Safety in application
Building in safety............................................................................................................................................................................19
FMEA (Failure Mode and Effect Analysis) IEC EN 61508............................................................................................. 19
Hazard and risk analysis ISO 12100-1 / 14121................................................................................................................19
Control system example..............................................................................................................................................................19
Typical wiring block diagram example.............................................................................................................................21
Example of fault monitoring.................................................................................................................................................23
PVG 32 – mainly used in system with fixed displacement pumps......................................................................... 23
PVG100 – Alternative LS dump or pilot supply disconnect...................................................................................... 24
PVG120 – Pump disconnect/block for variable pumps..............................................................................................24
PVE control
PVE control by voltage.................................................................................................................................................................25
PLUS+1
®
compliance............................................................................................................................................................... 25
ATEX PVE......................................................................................................................................................................................26
PVEU–PVE with fixed control signal range......................................................................................................................26
PVE controlled with PWM signal.........................................................................................................................................26
PVEP....................................................................................................................................................................................................27
PVEO................................................................................................................................................................................................... 28
PVE ON/OFF activation...........................................................................................................................................................28
PVE for float spool..........................................................................................................................................................................28
There are two variants of float spool PVBS......................................................................................................................28
PVHC control....................................................................................................................................................................................31
PVE hysteresis..................................................................................................................................................................................31
Example of PVE use....................................................................................................................................................................... 32
Technical Data
PVE operating parameters .........................................................................................................................................................34
PVHC control specification.........................................................................................................................................................35
PVEO and PVEM control specification....................................................................................................................................36
PVEA, PVEH, PVES and PVEU control specification ........................................................................................................... 36
PVEP control specification..........................................................................................................................................................37
Technical Information
PVE, Series 4 for PVG 32/100/120 and PVHC
Contents
520L0553 • Rev GD • Jan 2014 3