Nilfisk-Advance SC6000 36C Service Manual

Also see for SC6000 1050D: Instructions for use

Contents

Nilfisk-Advance SC6000 36C Service Manual Manual pdf 33 page image

33Service Manual – SC6000 04 - Control SystemRight and Left BrushThese two screens allow On/Off control of the brush motors Theadditional 3 lines provide status on the motor The Output Moduleprovides soft-start control to the motor. The first screen capture tothe right shows the motor status during the soft-start phase, and thesecond screen capture shows the steady-state statusNote how the Main Controller’s requested PWM is 100%, but duringstartup, the actual output PWM ramps upward until it reaches100% Also note that the startup current is very high while themotor is increasing its speed, and then tapers off to a lower levelonce the motor is at-speed (The deck is raised in this example, sothe motor is not under load )Vacuum 1 and 2These two screens provide Off/On power control to the main vacuumand optional second vacuum motors Pressing the Up/Down arrowbuttons cycle through the power optionsThe soft-startup of the motors is similar to what was described abovefor the brush motors The startup and operation of vacuum motorsis slightly different from other motors They start up with minimalresistance, but the load increases as the motor approaches operatingspeed Because the squeegee was raised for this example, thevacuum motor will be operating at maximum load because the inletair flow is unrestricted. Blocking the vacuum inlet actually reducesthe load on the motorSqueegee LiftThe Squeegee Lift screen provides Up/Down/Off control for thesqueegee lift actuator However, the actuator still controls the upperand lower position limits mechanically, inside the actuator bodyTherefore, if the squeegee is already raised and you issue the UPcommand, the actuator still will not move, because the mechanicallimit is already reached Another effect that you may notice is thatthe Output PWM will remain at 100%, but when the lift reaches itslimit, the current drops to zeroDeck LiftThe Deck Lift screen provides Up/Down/Off control for the deck liftactuator However, the actuator still controls the upper and lowerposition limits mechanically, inside the actuator body Therefore,if the deck is already raised and you issue the UP command, theactuator still will not move, because the mechanical limit is alreadyreached Another effect that you may notice is that the Output PWMwill remain at 100%, but when the lift reaches its limit, the currentdrops to zeroOutput TestM1 RIGHT BRUSHBack SetM1 PWM REQ %M1 PWM Out %M1 AmpsOn1004910.1Output TestM1 RIGHT BRUSHBack SetM1 PWM REQ %M1 PWM Out %M1 AmpsOn1001003.4Output TestM4 VACUUM 1Back SetM4 PWM REQ %M4 PWM Out %M4 AmpsOn1001211.5Output TestM6 SQUEEGEEBack SetM6 PWM REQ %M6 PWM Out %M6 AmpsDown-99-940.9Output TestM7 DECKBack SetM7 PWM REQ %M7 PWM Out %M7 AmpsUp100951.4