ANGELUS SANITARY CAN MACHINE COMPANY
SERVICE NOTICE
9/9/99-18033004
14 of 14
Rev. 1 - 9/9/99
UNDERCOVER GASSING CONTROL LOGIC OPERATION
THE LOGIC TO DO THE SWITCHING OF THE SOLENOID VALVES AND THE LOGIC TO MONITOR THE
FLOW RATES ARE PROGRAMMED IN THE PLC. THE FLOWMETER SIGNAL CURRENT IS INPUTTED
TO AN PLC ANALOG INPUT CARD AND THEN THIS IS COMPARED TO PRESET VALUES. THERE ARE
VALUES FOR BOTH THE LOWER AND UPPER LIMITS FOR THE LOW SPEED AND THE HIGH SPEED.
WHEN ANY OF THE LIMITS ARE REACHED, THE SEAMER WILL INDICATE THIS ON THE OPERATOR
INTERFACE AND THE SEAMER WILL COME TO A COAST TO STOP.
EITHER THE NO CAN NO GAS SENSOR, OR THE GAS PURGE BUTTON WILL INITIATE GAS FLOW,
BY ENERGIZING THE SOLENOID, FOR SLOW SPEED FLOW. 15 SECOND TIMERS ARE ALSO
ENERGIZED TO SHUT THE SYSTEM OFF IF NO CANS ARE SENSED BY THE SENSOR. IF THE WASH
MODE IS SELECTED, THIS WILL DISABLE THE SOLENOID VALVES, REGARDLESS OF THE SENSOR
SENSING A CAN.
