Application macros55Application macrosWhat this chapter containsThe chapter describes the application macros. For each macro, there is a wiringdiagram showing the default control connections (digital and analog I/O).Overview of macrosApplication macros are preprogrammed parameter sets. While starting up the drive,the user selects the macro best suited for the purpose with parameter 9902 APPLICMACRO.The ACS150 has five application macros. The table below contains a summary ofthe macros and describes suitable applications.Macro Suitable applicationsABB Standard Ordinary speed control applications where no, one, two or three constant speedsare used. Start/stop is controlled with one digital input (level start and stop). It ispossible to switch between two acceleration and deceleration times.3-wire Ordinary speed control applications where no, one, two or three constant speedsare used. The drive is started and stopped with push buttons.Alternate Speed control applications where no, one, two or three constant speeds are used.Start, stop and direction are controlled by two digital inputs (combination of theinput states determines the operation).MotorPotentiometerSpeed control applications where no or one constant speed is used. The speed iscontrolled by two digital inputs (increase / decrease / keep unchanged).Hand/Auto Speed control applications where switching between two control devices isneeded. Some control signal terminals are reserved to one device, the rest for theother. One digital input selects between the terminals (devices) in use.