Danfoss MCV111B Series Manual

Danfoss MCV111B Series Manual Manual pdf 1 page image

BLN-95-8995-4 Issued: September 1996DESCRIPTIONMCV111BElectrical Displacement Control-PVSeries 90. .FEATURES• Servo control deadband independent of signal nulldeadband: offers safety combined with accurate andresponsive control• Resistance to the environment: standard silicone oilfilled torque motor, environmentally sealed first/secondstage interface, full environmental testingThe MCV111B Electrical Displacement Control (EDC) is atwo-stage electrohydraulic pump stroke control which usesmechanical feedback to establish closed loop control of theswashplate angle of Danfoss Series 90 Pumps.The first stage, the MCV110 Pressure Control Pilot (PCP) isa torque-motor actuated, double-nozzle flapper valve thatproduces a differential output pressure proportional to theapplied electrical signal. The second stage uses thedifferential pressure to drive its unique spool arrangementand port oil to the pump servo cylinders. The second-stagespool configuration allows a null deadband (for machinesafety) in the pump’s output while maintaining optimumdynamic response to control commands.1. PUMP SIZEMODEL CODE PUMP SIZE03 30 cc05 42 or 55 cc07 75 cc10 100 cc13 130 cc Pump S/N < 92 - 1914 130 cc Pump S/N ≥ 92 -1918/25 180 or 250 ccBASEDEVICEPUMPSIZEPILOT STYLE2. PILOTMODEL CODE PILOT STYLE02 MS Connector04 Packard ConnectorORDERING INFORMATIONTheMCV111BElectricalDisplacementControlisorderedbyspecifying the pump size and pilot type as shown in Table A.Consult Danfoss, Minneapolis, MN, with furtherquestions.• Minimum long term null shift• Dual coil torque motor can be used to sum two commandsourcesTABLE A. INFORMATION NECESSARY TO SPECIFYTHE EDC.EDCs ordered separate from the pump must have mountingkits ordered separately:30/55 cc PUMP KIT (KIT NUMBER KK11655)Comprised of one K07652 gasket and six 9007314-0611 bolts75/100/130 cc PUMP KIT (KIT NUMBER KK11675)Comprised of one K07653 gasket and six 9007314-0611 bolts42 cc PUMP KIT (KIT NUMBER KK11642)Comprised of one K07652 gasket, six 9007314-0611bolts and one K09123 washer180/250 cc PUMP KIT (KIT NUMBER KK11618)Comprised of one K07653 gasket, six 9007314-0611bolts and one K09123 washerMCV111B XX XX© Danfoss, 2013-09 BLN-95-8995-4 1