PVED-CX Series 4

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Technical InformationElectrohydraulic ActuatorsPVED-CX Series 4powersolutions.danfoss.com

Technical InformationPVED-CX, Series 4 Electrohydraulic ActuatorRevision history2 Danfoss Jun 2017Table of revisionsDateChangedRevJun 2017Spool positioning data corrected0503September 2014Index correctedEBFebruary 2014Converted to Danfoss layout-DITA CMSEAOctober 2009 to May 2011Various updatesAA through DC11070179 BC00000068en-US0503

Technical InformationPVED-CX, Series 4 Electrohydraulic ActuatorContentsReferenceGeneral InformationPVG functionalityPVED-CX functionalityAcronyms used for PVG and PVE. 7Literature reference for PVG/PVE products.8Standards used for PVED-CX. 8Reading guide.9PVED-CX introduction. 10Overview. 11PVG functionality.13PVED-CX functionality. 14Mechanical subsystem.14Housing. 14Cable kit.14Mounting. 15Linear Variable Differential Transducer (LVDT).15Spool neutral spring. 15Hydraulic subsystem.16Electrical and electronic subsystem. 16Communication.17Computerized subsystem. 18Operational modes.19Full operational. 19Hand operational.19Automatic system safety integrity self test – ASSIST . 19Settings.20Logging.20Normal operation – self and neighbor supervision conceptSet point command.21Spool supervision.21Solenoid control. 22Position reporting.22Neighbor supervision. 22Microcontroller supervision. 22ASIC supervision.22Temperature supervision. 22Power save.22Safety descriptionData section Danfoss Jun 2017POST – Power On Self Test.23ASSIST – Automatic System Safety Integrity Test.23Runtime fault monitoring. 23Communication fault. 23Spool position fault.23System data fault. 24Electrical fault.24Temperature fault and correction. 24Test fault.24Fault level.24Fault reaction.25Fault reporting. 25Fault recovery.25Operational conditions. 26Performance.26Dimensions and layout. 2611070179 BC00000068en-US0503 3

Technical InformationPVED-CX, Series 4 Electrohydraulic ActuatorContentsHydraulic data. 29Electrical data. 30Communication.31LED . 31CAN. 31Spool control. 32Spool positioning. 32Closed loop. 32Spool monitoring, control and fault reaction.32Parameter settings.33Node Id. 33EDS parameters – constants read only. 34EDS parameters – variables read write. 34Error register. Variable read only.35Conversion of identity parameters to comparable values. 35Reading guide for product code and serial number.35Reading guide.36Reading guide for numbers . 36Error log. Variables, read only, voilatile.36Error list. Variable read only. 36Instantaneous temperature. Variable read only.37Temperature log. 37Safety Switch status. 37Safety Relevant Features. 38Emergency msg. (EMCY). 38EMCY publishing order on CAN bus. 38Reset Emergency Message.38EMCY consumer behavior. 39NMT reset application.39NMT reset communication.39Reload Command.40Important Points for PVED-CX Valve Configuration.40Changing Node ID using Layer Setting Service. 41Step-1: Switch To Configuration Mode.41Switch To Configuration Mode Global Way.41Switch to Configuration Mode Selective Way.41Step-2: Configure Node ID.42Step-3: Store New Assigned Node-ID. 42Step-4: Switch to Normal Mode.43LSS Enquiry Services.43Enquire Vendor-ID Command.43Enquire Product Code Command.43Enquire Revision Number Command.44Enquire Serial Number Command.44Enquire Device Node-ID Command.45EDS access by SDO. 45Set EDS parameter.45Set NNI example.45Enquire EDS parameter. 46Enquire NNI example.46Enquire error log example.46Valve Operation.47Normal Operation.47NMT boot up object.47Heartbeat Message. 47Getting to Device Mode Active. 48PVED-CX node 0x21.48PVED-CX node NID.

DM1 Diagnostic Message 1 - J1939 message informing about present fault DM2 Diagnostic Message 2 - J1939 message informing about fault history DM3 Diagnostic Message 3 - J1939 message clearing fault history DSM Device State Machine. Deterministic description of system process ECU Electronic Control Unit EH Electro Hydraulic-F PVE for Float spool.

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