SYSTEM / Control System Overload Alarm Control (Only Machines Equipped with Optional Parts) Purpose: Sounds the buzzer and indicates the warning of overload while overloaded operation of boom raise including lifting work. Operation: 1. When the following conditions exist, MC sends the signal to the monitor unit. 2. While the monitor unit receives the signal from MC, terminal A9 is connected to the ground inside the monitor unit. 3. The monitor unit sounds the buzzer and indicates the warning of overload. Condition: Boom Bottom Pressure Sensor: Output beyond the constant value Overload Alarm Switch: ON NOTE: The overload alarm in monitor unit should become enable by using Dr.ZX. NOTE:
The pressure setting of overload alarm in MC can be adjusted by using Dr.ZX. Overload Alarm Switch (Optional) M1J1-03-001 Boom Bottom Pressure Sensor Overload Alarm Switch (Optional) Monitor Unit CAN Com- munication A9 T1J1-02-02-019 Buzzer T2-2-63