Danfoss VLT AQUA Drive FC 202 Design Manual

Also see for VLT AQUA Drive FC 202: Service guide Installation guide Installation guide Operating guide Installation guide

Contents

3.6.7 24 V Back-Up Option MCB 107 (Option D)External 24 V DC SupplyAn external 24 V DC supply can be installed for low-voltage supply to the control card and any option cardinstalled. The external power supply enables full operationof the LCP (including the parameter setting) and fieldbuseswithout mains supplied to the power section.Input voltage range 24 V DC ±15% (max. 37 V in 10 s)Max. input current 2.2 AAverage input current 0.9 AMax cable length 75 mInput capacitance load < 10 uFPower-up delay < 0.6 sTable 3.23 External 24 V DC Supply SpecificationsThe inputs are protected.Terminal numbers:Terminal 35: - external 24 V DC supply.Terminal 36: + external 24 V DC supply.Follow these steps:1. Remove the LCP blind cover2. Remove the terminal cover3. Remove the cable de-coupling plate and theplastic cover underneath4. Insert the 24 V DC backup external supply optionin the option slot5. Mount the cable de-coupling plate6. Attach the terminal cover and the LCP or blindcover.When MCB 107, 24 V backup option is supplying thecontrol circuit, the internal 24 V supply is automaticallydisconnected.3.6.8 Analog I/O option MCB 109The Analog I/O card is supposed to be used in thefollowing cases:• Providing battery back-up of clock function oncontrol card• As general extension of analog I/O selectionavailable on control card, for example, for multi-zone control with three pressure transmitters• Turning frequency converter into de-central I/Oblock supporting Building Management Systemwith inputs for sensors and outputs for operatingdampers and valve actuators• Support Extended PID controllers with I/Os for setpoint inputs, transmitter/sensor inputs, andoutputs for actuators.transmitter/sensor inputsANALOG INPUTCPU CAN BUSCPUCONTROL CARD (FREQUENCY CONVERTER)ANALOG I/OOPTION MCB 109ANALOG OUTPUTRTCPt1000/Ni 10003VLITHIUMBATTERY1 2 3 4 5 6 7 8 9 10 11 12AINAINAINAOUT0 V 24 VDC130BA405.11AOUTAOUTGND0-10VDC 0-10VDC 0-10VDC< 1 mA< 1 mA< 1 mA0-10 VDC0-10 VDC0-10 VDCIllustration 3.11 Principle Diagram for Analog I/O Mounted in theFrequency ConverterAnalog I/O configuration3 x Analog Inputs, capable of handling following:• 0 - 10 V DCOR• 0-20 mA (voltage input 0-10 V) by mounting a510Ω resistor across terminals (see NOTE)• 4-20 mA (voltage input 2-10 V) by mounting a510Ω resistor across terminals (see NOTE)• Ni1000 temperature sensor of 1,000 Ω at 0 ° C.Specifications according to DIN43760• Pt1000 temperature sensor of 1,000Ω at 0 ° C.Specifications according to IEC 607513 x Analog Outputs supplying 0-10 V DC.Selection VLT® AQUA Drive FC 202 Design GuideMG20Z102 - VLT® is a registered Danfoss trademark 593 3