Solution System322Service Manual – CS7000Circuit DescriptionThe Following Conditions Must be Met for the Solution System to Operate• The Hopper Interlock Switch S3 must be closed.• There must be positive voltage to the J7-1 Interlock Input. For this to happen:– The Seat Switch S9 must be closed.– The Safety Relay K14 on the Steer By Wire Controller A5 must energize the coil to close the Safety RelayK14 contactor.– The Emergency Stop Switch S15 must be closed.– The Battery Interlock S13 must be closed (battery machines) or jumpered (Diesel and LP machines).• The 400-amp Fuse F1 must be closed to provide positive voltage from the Battery to the load side of AuxiliaryContactor K9.• The Ignition Switch S14 must be closed to provide positive voltage to the Auxiliary Contactor K9 coil. TheJ2-14 Output on the A1 Main Machine Controller provides ground to the Auxiliary Contactor K9 coil when theIgnition Switch S14 provides an input to the Key Switch Input J7-12.• The Auxiliary Contactor K9 must be closed to provide positive voltage to circuit breakers VACC1/CB1 andVACC2/CB2.• Circuit breaker VACC1/CB1 must be closed to provide positive voltage to Solution Valve L1.• Circuit breaker VACC2/CB2 must closed to provide positive voltage to the Solution Control Pump M19(EcoFlex™ machines only). (Note that VACC2/CB2 must closed to provide positive voltage to the ExtendedScrub Pump M25 and Low Pressure Pump M23 as well.)• The J2-20 PWM Output provides negative ground to Solenoid Valve L1, and the J3-2 PWM Output providesnegative ground to the Solution Control Pump M19 under the following conditions:– The A1 Main Machine Controller must receive a signal from the A3 Control Panel via the CAN BUS that theoperator has pressed the scrub switch.– The A1 Main Machine Controller must receive a signal from the A2 Drive Controller via the CAN BUS thatthe machine is moving forward or (optional) in reverse.The Following Conditions Must be Met for the Extended Scrub System to OperateThe extended scrub system requires the same conditions to operate as does the solution system, with thefollowing additions:• The extended scrub function must be installed in the configuration menu.• The J3-1 PWM Output provides the negative ground to the Extended Scrub Pump M25 under the followingconditions:– The A1 Main Machine Controller must receive a low-solution signal via the CAN BUS from the A3 ControlPanel.– The A1 Main Machine Controller must receive a signal from the A3 Control Panel via the CAN BUS that theoperator has pressed the extended scrub switch.– The A1 Main Machine Controller must receive a signal from the A2 Drive Controller via the CAN BUS thatthe machine is moving forward or reverse.
