First of all, about the motion control card:
Motion control card is an upper control unit based on PC and industrial computer, which is used in various motion control occasions (including displacement, speed, acceleration, etc.). ).
Motion control card is a pulse motion control card with high integration and reliability based on PCI bus, which can control multiple stepping motors or servo motors.
Second, the main functions of the motion control card:
The motion control card is a high-performance stepper/servo motor motion control card based on PC bus. It uses high-performance microprocessors (such as DSP) and large-scale programmable devices to realize multi-axis coordinated control of multiple servo motors, including pulse output, pulse counting, digital input, digital output, D/A output and other functions. It can send out a continuous and high-frequency pulse sequence, control the speed of the motor by changing the frequency of the pulse, and control the position of the motor by changing the number of pulses. Pulse counting can be used for position feedback of encoder, providing accurate position of machine and correcting errors in transmission process. Digital input/output points can be used for limit, origin switch, etc. Library functions include S-type and T-type acceleration, linear interpolation and circular interpolation, and multi-axis linkage functions.
Third, the reasons for the emergence of motion control cards:
1, in order to meet the requirements of standardization, flexibility and openness of the new CNC system;
2. Engaged in the development and transformation of automatic control systems for various industrial equipment (such as packaging machinery and printing machinery). ), national defense equipment (such as tracking and positioning system, etc. ), intelligent medical devices and other equipment urgently need a hardware platform of motion control module;
3. The wide application of PC in various industrial sites also urges the provision of corresponding control cards to give full play to the powerful functions of PC.