ABB  PPC907BE 3BHEO24577R0101  控制卡模块

  运动控制卡通常是采用专业的运动控制芯片或高速DSP来满足一系列运动控制需求的控制单元，其可通过PCI、PC等总线接口安装到PC和工业PC上，可与步进和伺服驱动器连接，驱动步进和伺服电机完成各种运动(单轴运动、多轴联动、多轴插补等)，接收各种输入信号(限位原点信号，sensor)，可输出控制继电器、电磁阀、气缸等元件。用户可使用VC、VB等开发工具，调用运动控制卡函数库，快速开发出软件。

以一个通用的XYZ三轴通用控制平台开发为例，此平台加上胶枪、刀具等模块后可用于点胶、切割等用途，运动控制卡采用深圳众为兴数控开发的ADTA，ADTA运动控制卡是一款经济实用型运动控制卡，轴伺服/步进电机控制，最大脉冲输出频率为MHz，每轴均有位置反馈输入;可实现-轴直线插补，可实现XYZ三轴插补，进行整体配合动作;带有路隔离数字输入，路隔离数字输出，可控制胶枪、刀具等模块;具有外部信号驱动、硬件缓存等功能，能满足绝大部分的轴以下工作平台的运动控制需求。

ADTA能驱动绝大多数的伺服驱动器。ADTA运动控制卡采用脉冲的方式驱动伺服，脉冲数量决定伺服电机的转动图数，脉冲频率决定伺服电机的转动速度，同时ADTA卡能够将伺服电机的位置实时反馈给控制系统软件。可将伺服报警、伺服到位等信号接入ADTA卡，实时反馈伺服状态。用输出可实现伺服的伺服使能和伺服报警清除等功能。我们XYZ轴采用丝杠传动方式的话，XY假如选用mm间距的丝杠，将伺服的每转脉冲设置为ADTA控制卡控制精度为个脉中，机械的精度将可以达到mm/=.mm;ADTA控制卡的速度可达脉冲/秒，伺服电机的转速可以高达转/分钟，XY轴的速度可达mm/s。为了使机械运行更平稳，运用ADTA的硬件加减速功能，能在很短时间内从低速加速到高速，同时也在运动中改变速度，实现速度灵活控制，设置也很简单，只需用运动控制函数库中的set startvi设置低速,set speed设置高速,set a设置加速度即可将整个运动过程中速度交给运动控制卡处理来实现一个梯形加减速。为了消除软件发送指令之间的间隙而造成的伺服电机速度突变，ADTA运动控制卡提供了硬件缓存功能，用户可以将大容量的运动指令提前放入到运动控制卡中，ADTA运动控制卡自动将一条一条指令顺序执行，实现伺服电机运行间隙完美的衔接，使整台机器运行平稳无抖动。

运动控制卡因其性价比好、功能强大、开发便利等优势已经广泛运用切割机、点胶机、激光打标机电路板钻/铣机、超声波焊机、丝印机、AOI检测机、飞针测试机、激光焊接机、雕刻机、喷绘机、快速成型机等测量与自动化设备领域。

Motion control card is often a professional motion control chip or high-speed DSP to meet a series of motion control needs of the control unit, which can be installed on the PC and industrial PC through PCI, PC and other bus interfaces, can be connected with the stepper and servo drive, drive the stepper and servo motor to complete a variety of movements (single-axis movement, multi-axis linkage, multi-axis interpolation, etc.). Receive a variety of input signals (limit origin signal, sensor), can output control relays, solenoid valves, cylinders and other components. Users can use VC, VB and other development tools, call the motion control card function library, quickly develop the software.

Take the development of a general XYZ three-axis general control platform as an example, this platform can be used for dispensing, cutting and other purposes after the glue gun, tool and other modules, the motion control card adopts the ADTA developed by Shenzhen Zhongweixing Digital Control, ADTA motion control card is an economical and practical motion control card, shaft servo/stepper motor control, the maximum pulse output frequency is MHz. Each axis has position feedback input; Can realize linear interpolation of -axis, can realize XYZ three-axis interpolation, and carry out the overall coordination action; With road isolation digital input, road isolation digital output, can control the glue gun, tool and other modules; It has the functions of external signal drive, hardware cache, etc., which can meet the motion control needs of most of the sub-axis working platforms.

ADTA can drive most servo drives. The ADTA motion control card uses pulse to drive the servo, the number of pulses determines the rotation figure of the servo motor, the pulse frequency determines the rotation speed of the servo motor, and the ADTA card can feed the position of the servo motor to the control system software in real time. The servo alarm, servo in place and other signals can be connected to the ADTA card to feed back the servo status in real time. With the output, the functions of servo enable and alarm clear can be realized. If the XYZ axis adopts the screw drive mode, XY if the screw with mm spacing is selected, the servo pulse per revolution is set to the control accuracy of the ADTA control card in the pulse, the mechanical accuracy can reach mm/=.mm; The speed of the ADTA control card can reach pulse/second, the speed of the servo motor can reach RPM, and the speed of the XY axis can reach mm/s. In order to make the machine run more smoothly, the use of ADTA hardware acceleration and deceleration function, can accelerate from low speed to high speed in a short time, but also change the speed during the movement, to achieve flexible speed control, the setting is also very simple, Just set startvi in the motion control function library to set the low speed,set speed to set the high speed,set a to set the acceleration can be the speed of the entire movement process to the motion control card processing to achieve a ladder acceleration and deceleration. In order to eliminate the speed mutation of the servo motor caused by the gap between the software sent instructions, the ADTA motion control card provides a hardware caching function. Users can put large-capacity motion instructions into the motion control card in advance. The ADTA motion control card automatically executes one instruction after another in order to realize the perfect connection of the servo motor running clearance. Make the whole machine run smoothly without jitter.

The advantages of good cost performance, powerful function and convenient development have been widely used in the field of measurement and automation equipment such as cutting machine, dispensing machine, laser marking machine circuit board drilling/milling machine, ultrasonic welding machine, screen printing machine, AOI testing machine, flying needle testing machine, laser welding machine, engraving machine, inkjet printing machine, rapid forming machine.

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