Nilfisk-Advance EcoFlex BR 1100 S Service Manual

Also see for EcoFlex BR 1100 SC: Instructions for use Instructions for use - original instructions Instructions for use Service manual

Contents

26Service Manual – Condor ™ EcoFlex™, BR 1100/1300 EcoFlex ™Control SystemFunctional DescriptionOverviewThe control system consists of the A2 Control Board Assembly, the A3 Switch/Display Panel Assembly andassociated sensors and circuitryA2 Control Board AssemblyThe A2 Control Board Assembly, sometimes referred to themain controller, communicates with the Curtis A1 SpeedController and the A3 Switch/Display Panel Assembly tocoordinate the operation of the various machine systemsThe A2 Control Board Assembly is fastened to the ElectricalMount behind the electrical panel cover assembly to theleft of the Operator seatOne primary function of the A2 Control Board Assembly isto position the scrub brushes relative to the floor surfaceusing a lift actuator motor The A2 Control Board Assemblycontinuously monitors the brush motor current draw tomaintain the desired scrub pressure on the floor.• If the brush motor current drops below the desiredrange, the A2 Control Board Assembly switches on thelift actuator motor to move the scrub deck downwarduntil the brush motor current draw is within thecorrect range for the scrub pressure selected• If the brush motor current rises above the desiredrange, the A2 Control Board Assembly switches on thelift actuator motor to lift the scrub deck upward untilthe brush motor current draw is again within thecorrect range for the scrub pressure selectedNote: Refer to the Scrub System section in thismanual for a complete explanation ofscrub deck operation.A secondary function of the A2 Control Board Assembly is to detect any system failures and display thecorresponding error code on the display panel, or store it in the control board’s recall memory mode Theerror codes are used to help service technicians determine the fault and to guide in repairing a specificsystem malfunction quickly.Note: See the Troubleshooting section for further information.The A2 Control Board Assembly also allows you to change program settings for a set of specific machinefunctions See the Main Control Programming Options section in this manual for further informationA2 Control BoardAssemblyElectricalMountCurtis A1SpeedController