Nilfisk-Advance Advance SC400 Service Manual

Also see for Advance SC400: Operating guide Operating guidelines Instructions for use

Nilfisk-Advance Advance SC400 Service Manual Manual pdf 17 page image

Control System17Service Manual – SC400Control SystemFunctional DescriptionThe function control is performed with the programselection knob/rotary switch (SW1), the machinestart-up enabling push button (SW2) (which can beused simultaneously with the brush levers) and thesolution flow push-button (SW3).The switch outputs are read by the function electron-ic board (EB1) which consequently controls the rel-evant outputs: electromagnetic switch (K1) for brushmotor, relay (K2) for vacuum system motor, while thesolenoid valve (EV1) is activated directly form theelectronic boardThe control circuits are protected by the fuse (F3) onthe function electronic board (EB1)The LED electronic board (EBLED) has a set of 3two-color LEDs The set of 3 LEDs is used to indicateeither battery charge level or water flow level depend-ing on the current mode of operation:LEDs to display thebattery charge levelLEDs to set waterflow levelThe LED electronic board (EBLED) is driven by thefunction electronic board (EB1)Diagram of Output Activation according to the Position of the Switches (SW1), (SW2)and (SW3)Program selection knob/rotary switch (SW1)settingsMachine start-upenabling push button(SW2) settings (withbrush levers)Function electronicboard (EB1) + LEDelectronic board(EBLED)Brush motor (M1) +solenoid valve (EV1)Vacuum system motor(M2)O Pressed/released Off Off OffReleased On Off OnPressed On On OnReleased On Off OffPressed On On OffPressed/released On Off OnSolution flow push-button setting (SW3)LED display Symbols Solenoid valve ON time(EV1)Solenoid valve OFF time(EV1)0 - Always OFF1 1 sec 5 sec2 3 sec 3 sec3 Always ON -