Since the price of single-phase asynchronous machine is very low, single phase asynchronous motor is used in this system. However, from the perspective of position control, it is difficult for single-phase asynchronous machine to precisely locate (open loop control). Single-phase asynchronous motor quickly stop the implementation of the principle is as follows: when the induction motor under normal working state, two phase winding asynchronous motor on the phase difference of 90 °, and thus produce a rotating magnetic field on the asynchronous motor stator. The rotor cutting the magnetic force line in the rotating magnetic field makes the motor rotate. When the same phase voltage is applied to the two phase winding of the motor, a static magnetic potential is generated in the stator, while the rotor of the motor generates a magnetic potential due to the presence of current. The magnetic potential rotates with the rotor.

According to the recent principle of magnetic circuit, when the magnetic circuit of two magnetic potential is the shortest, the magnetic circuit is stable. Therefore, when the magnetic potential of the stator of the motor is coincident with the magnetic potential of the rotor, the magnetic circuit reaches the shortest. This allows the motor to stop working in the shortest possible time. The principle is the principle of electromagnetic brake. The brake is not added to the hardware, but the performance of the system is greatly improved. Using this method not only reduces the cost, but also increases the reliability of the whole system.

Because in a bundle of money machine, manipulator to complete the action is very simple, just place your cash from transverse longitudinal, then place the cash from the longitudinal transverse, relationship between each action is 90 degrees, so the manipulator motion can be finished through the motor drives the CAM structure of the manipulator. When the detection part detects that the CAM mechanism completes 90 degree rotation, the motor stops and completes the movement of the machine arm part of the baling machine.

Intelligent bundle of money machine various anti-interference measures were taken from the hardware and software, the device anti-interference ability, enhance stability increased, at the same time have a variety of self-diagnosis function, such as appear all sorts of unexpected circumstances, will not damage the cash. The equipment is reliable in actual work and is an ideal financial instrument.