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

Pipe fill mode comprises functionalities to fillpipes smoothly and avoid water hammering. Thisfeature provides different modes for horizontaland vertical pipes.• Real time clock• Smart logic control (SLC)SLC comprises programming of a sequenceconsisting of events and actions. SLC offers awide range of PLC functions using comparators,logic rules, and timers.• Pre/post LubeSee chapter 5.7 Pre/post Lube Overview for details.• Flow confirmationSee chapter 5.8 Flow Confirmation Overview fordetails.• Advanced minimum speed monitoring forsubmersible pumpsSee chapter 5.9 Advanced Minimum SpeedMonitoring Overview for details.• Preventive maintenanceThe preventive maintenance feature enablesprogramming of scheduled service intervals intothe drive.5.3.1 Easy Set UpSmartStartWith the SmartStart wizard, it is now easier and more cost-efficient to commission the drive. SmartStart is activated atthe first power up or after a factory reset and guides usersthrough a series of easy steps to ensure the correct andmost efficient motor control. The SmartStart can also bestarted directly via the quick menu.• Single pump/motor in open or closed loop.• Motor alternation: When 2 motors share 1 drive.• Basic cascade control: Speed control of a singlepump in a multi-pump system.• Master-slave: Control up to 8 drives and pumpsto ensure smooth operation of the overall pumpsystem.Quick MenuThe quick menu entry water and pumps provides quickaccess to the most common water and pump features ofthe VLT® AQUA Drive:• Special ramps (initial/final ramp, check valveramp).• Sleep mode.• Deragging.• Dry-run detection.• End of curve detection.• Flow compensation.• Pipe fill mode for horizontal, vertical, and mixedpipe systems.• Control performance.• Minimum speed monitor.5.4 Cascade Control OverviewThe cascade controller options extend the number ofavailable relays. Once 1 of the options is installed, thecascade controller functions are managed through thecontrol panel.VLT® Extended Cascade Controller MCO 101 and VLT®Advanced Cascade Controller MCO 102 are add-on optionsextending the supported number of pumps and thefunctionalities of the built-in cascade controller in the VLT®AQUA Drive.The following options for cascade control are available forthe VLT® AQUA Drive:• Built-in BASIC cascade controller (standardcascade controller).• MCO 101 (extended cascade controller).• MCO 102 (advanced cascade controller).For more information, see chapter 12 Application Examplesand the programming guide.The extended cascade controller can be used in 2 differentmodes:• With the extended features controlled byparameter group 27-** Cascade CTL Option.• Extends the number of available relays for thebasic cascade controlled by parameter group 25-**Cascade Controller.MCO 101 allows up to 5 relays for cascade control. MCO102 allows controlling a total of 8 pumps. The options areable to alternate the lead pump with 2 relays per pump.NOTICEIf MCO 102 is installed, the VLT® Relay Card MCB 105 canextend the number of relays to 13.ApplicationCascade control is a common control system used tocontrol parallel pumps or fans in an energy-efficient way.The cascade controller option enables control of multiplepumps configured in parallel by:• Automatically turning individual pumps on/off.• Controlling the speed of the pumps.Product Features VLT® AQUA Drive FC 20220 Danfoss A/S © 05/2017 All rights reserved. MG22B10255