The PS-AMC motion controller is an ideal solution for motion control applications requiring several independent axes of motion and/or coordinated motion between some or all axes. Available in one to four axes models, the PS-AMC provides highly accurate positioning using encoder fed control (one encoder per axis). Used in conjunction with select Productivity CPUs and programmed with the FREE Productivity Suite software, the AMC can supply up to 1MHz of pulse-train command signals to servo or stepper drives for extremely responsive movements in any application.
The primary function of a flying cut-off system is to synchronize the speed of a servo-driven carriage, on which a cutting mechanism is mounted, with the speed of a continuously fed material to make a perpendicular cut without stopping the feed. These applications are used where it isn't practical to stop and start a continuous production operation.
The flying cut-off shown above employs four axes of motion, (1) a rotating pipe cutter, (2) a continuous pipe infeed system, (3)carriage positioning drive, and (4)outbound conveyor. With the PS-AMC4, all four of these axes can be easily controlled and synchorinized within the same controller, and it's only $465
Each remote I/O capable Productivity2000/3000 CPU can control up to 16 axes using four PS-AMC4 controllers each coordinating up to four axes on their own (P1000 systems can control up to 4 axes using 1 PS-AMC controller). So whether you have a single system with 4 or more axes of motion, multiple coordinated systems across your facility, or if you're anticipating future expansion, the PS-AMC is a perfect solution for your motion application.
The Productivity Suite software provides the following for the PS-AMC:
When it comes to package handling, pick-and-place or similar applications, product spacing is very important. One way to ensure proper spacing is to send the products through a smart conveyor system. With a smart conveyor, products arriving from an upstream process are brought to the right distance and phase position using several belts that are electronically coupled with each other through a PS-AMC controller. Each conveyor's servo motor will speed up or slow down to achieve the appropriate spacing between products. Four coordinated four-belt smart conveyor systems can be controlled with just one CPU.
With machinery that uses coordinated motion where one move is dependant on another, especially in situations where a secondary move can only happen once the first has cleared its path, positioning inaccuracies can cause major production loss or even substantial equipment damage. Even small fluctuations can compound and become big issues if not corrected in time. The Productivity AMC has features built-in to compensate for measurement drift and allows on-the-fly position corrections to maintain superior accuracy.
Rotary table applications are very common in manufacturing and can be used to move products into position for drilling, welding, milling, or even for simple tool changes. Behind the scenes, rotary tables aren't very complicated and can be controlled with simple index moves to index the product to the next station or to a specific station.
Depending on the number of stations, one PS-AMC4 may be all you need to handle the rotation of the table, as well as, product placement and station movements.
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One inherent problem with this type of application (as well as other continuous, same direction motion applications), is when the difference between steps/stations is fractional. If the controller doesn't account for these fractions, the system will drift. The PS-AMC controller takes this into consideration and will accurately handle fractional steps to prevent drifting over time and always remain on target.
1 - Install Hardware
Once your PS-AMC arrives, install the controller either locally to or remotely from the CPU and connect the needed Ethernet cable(s). Wire up the system, power the controllers and download the free Productivity Suite software to your PC if you haven't already. At this point, you could use the software test tool in Productivity Suite to test the hardware and verify the physical wiring, otherwise on to step 2.
2 - Configure Hardware
With the communication cables connected, and power applied, the Productivity CPU will auto-discover any PS-AMC controllers that are on the same Ethernet network. Once discovered, you can easily set the hardware parameters and modify data tags from within Productivity Suite.
3 - Set Up Motion Profile
Productivity Suite has numerous built-in motion instructions that allow you to quickly and easily configure standard motion profiles like flying cut off, rotary tables and more using simple drop-down selections. If you need something different, you can also create your own custom move profiles using the Motion Sequencer (MSEQ) instruction. Create your profile, download the updated project file to the CPU and you are done!
The P2-HSI/HSO modules are a great option for basic motion control applications. Combined with the numerous communication abilities built into the P2-550 CPU, these modules give you a very practical motion solution for a lot less than the cost typically associated with motion. But don't let the price fool you. These little guys can stand head-to-head with modules you've been paying much more for.
The P2-HSO is a high-speed (1MHz) output module that supports Pulse/Direction, Step Up/Step Down and Quadrature pulse outputs on each of two independent output channels. It has both line driver and open drain outputs. Additionally, it has six general purpose inputs and four general purpose outputs.
And with Productivity Suite's built-in instructions, like Find Home (HOME), Simple Move and Velocity Move (SMOV), it's easier than ever to program routines based on target position, target velocity, accel rate, decel rate, and more.
Both the High Speed Input (P2-HSI) and High Speed Output (P2-HSO) modules can be configured using Productivity Suite's intuitive function blocks. Simply define your tags for each input/output channel on the appropriate Channel (1 or 2) Setup Tab. You can even specify custom units, and with the P2-HSI take advantage of an estimated velocity function.
The P2-HSI is a high-speed (1MHz) input module that has both differential and single-ended inputs. This module accepts Pulse/Direction and Quadrature signals on each of two independent input channels. It also provides four general purpose high-speed inputs and four general purpose 5-24VDC @ 0.5 Amp outputs.
The Registration (REG) instruction can trigger several internal and external position based events such as the capturing of positions, setting a tag, counting events and turning on, off or pulsing an output. The action can also be delayed by a set number of pulses as in this pneumatic stamping application. The P2-HSI module is used to accurately stamp parts as they move past on a conveyor. A blank part is detected by the sensor and the instruction is triggered. The output or stamping function is delayed by the appropriate number of encoder pulses. Once the part travels to the precise location under the stamp, the pneumatic stamp is activated and the image is stamped onto the part.
The Find Home (HOME) instruction initializes this pick and place application on power-up. Homing routines are used to align the P2-HSO channel position to a known real-world physical position. Choose from four preconfigured move routines and simply identify the desired speed, direction and acceleration.
Besides the advanced P2-HSI and P2-HSO modules, Productivity2000 PLCs also offer lower-cost high-speed counter and pulse-width modulation modules. These modules are tailored for specific high-speed functions that are beyond the realm of generic I/O.
ProductivitySuite makes it easy to configure your I/O modules. Simply use the convenient fill-in-the-blank GUI to pick the functions you desire, set the scaling (standard or custom), assign the appropriate tags or create them on the fly, it couldn't be any easier.
The P2-02HSC is capable of handling input pulse frequencies up to 100kHz. Easily count and/or calculate pulse rates from dedicated inputs or encoder signals that are used in many applications including package tracking and picking systems. Additionally, there are two general purpose inputs for use as 5-24 VDC inputs.
Priced at $88.00
The P2-04PWM pulse width modulation module provides up to four channels of sinking or sourcing 0-20 kHz, 0-100% duty cycle outputs. The varying pulse widths produced by the PWM module are seen as varying power levels to the end device and are ideally suited for running motors/pumps, controlling LED lighting, opening/closing solenoid valves and more.
Priced at $97.00