System for supplying paint to dosing device of coating unit of printing machine, has drive unit, which has motor and sensor, where control medium signals for driving motor

摘要

The system (4) has two pumps optionally coupled to a drive unit, where the two pumps differ from each other with respect to conveying principles. One pump is a hose pump with a feeding principle, where another pump is a rotary piston pump or diaphragm pump with conveying principles. The drive unit has a motor and a sensor, where a control medium signals for driving the motor. The motor is driven when one of the two pumps is coupled to the drive unit.