Illustration 1.1 TopologyVLT® CANopen MCA 105 is designed to communicate withany master abiding by the DeviceNet standard. And it isintended for use with:• VLT® AutomationDrive FC 301.• VLT® AutomationDrive FC 302.1.5 Approvals and CertificationsMore approvals and certifications are available. For moreinformation, contact a Danfoss local partner.1.6 Symbols, Abbreviations, andConventionsAbbreviation DefinitionCAN Controller area networkCiA CAN in automationCOB Communication objectCOB-ID Communication object identifierCTW Control wordEDS Electronic data sheetEMC Electromagnetic compatibilityEMCY Emergency messageI/O Input/outputLCP Local control panelLED Light emitting diodeLSB Least significant bitMAV Main actual value (actual output)MRV Main reference valueMSB Most significant bitNMT Network managementN/A Not applicableOD Object directoryPCD Process dataPDO Process data objectPLC Programmable logic controllerPNU Parameter numberREC Receive error counterRPDO Receive process data objectRPM Revolutions per minute; unit for the speed of arevolving motorRTR Remote transmission request frameRX Receive dataSTW Status wordSDO Service data objectSYNC Object for synchronisation of process dataTEC Transmit error counterTPDO Transmit process data objectTX Transmit dataTable 1.2 Symbols and AbbreviationsConventionsNumbered lists indicate procedures.Bullet lists indicate other information and description ofillustrations.Italicised text indicates:• Cross-reference.• Link.• Parameter name.• Footnote.• Parameter group.• Parameter option.• Alarms/warnings.Introduction VLT® CANopen MCA 1054 Danfoss A/S © 06/2015 All rights reserved. MG92G10211