Technical Topics

A comprehensive list of Technical Topics discussing key features of ANCA Motion products and applications.

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Fly Cutting

Fly-Cutting allows cutting to be done with a scanning motion along straight and arc paths, significantly increasing machine productivity for thin material. 

Many control systems are unable to produce high quality cuts due to machine lag and the time it takes for their systems to send and receive messages. ANCA Motion’s CNC have been configured to determine the lag incurred and can recalculate the cut path/s accordingly. ANCA Motion's laser applications cut precision has been designed and tested to be under a nano second and uses IEEE 1588 calculations to produce a superior cut and finish for your customers.

ANCA Motion’s software is capable of turning on the laser within 1um of the specified X, Y location, when contouring at a constant velocity.

ANCA Motion are able to achieve such high accuracy due to their AMD5x IO Expansion cards ability to synchronise with the machines motion, increases accuracy & precision. Another benefit of this integration significantly reduces the time needed to send a message from ANCA Motion’s control system to the Laser source. Other control system’s do not have this integration as they use external IO, this increases the time needed to send a message to the Laser source.

DCM

Drive Controlled Moves (DCM) allow a series of moves (up to 64 trapezoidal velocity profile) to be pre-configured and commanded by different methods. DCM is supported on ANCA Motion’s AMD2000 and AMD5x servo drives.

DCM functionality enables customers to create pre-defined motion profiles in just a few steps. Each move is defined with a target position, target velocity, acceleration, deceleration, next move and the delay time before the next move. 
DCM can be configured to automatically transition from one move to another for cyclic operation and more complex profiles. When the drive is operating in standalone mode without an external control unit, pre-configured DCM sequences can be triggered via a drive’s digital inputs. The DCM function also provides the ability to monitor if the axis is within an expected position range. 

DCM can be easily configured within ANCA Motion's, MotionBench software. MotionBench allows you to enter and manipulate moves in a tabular format. The DCM sequences configured can be saved to the drive or a file on their computer.

DCM can be used in various applications where pre-defined motion profiles are required. In automation applications for example, packaging or wood cutting machines where machine builders can create motion sequences tailored to their requirements and trigger the motion with either an external control unit or digital inputs when the drive operates in standalone mode.

Motor Thermal Protection

Motor thermal protection is a feature which provides thermal protection to the connected motor, supported by ANCA Motion’s AMD5x and AMD2000 servo drives. Users can set the motors thermal parameters through ANCA Motion's, MotionBench software or via the EtherCAT® master on the CNC. 

The drives can predict the temperature rise based on the thermal model and therefore helps customers to detect potential failures in their machines, e.g. motor overload, or mechanical crash. As soon as an abnormal condition is detected by the thermal model, the drive cuts off the power to the motor immediately before it overheats. By not allowing the motors to overheat, motor thermal protection reduces wear and tear on motors and subsequently the machine, reducing maintenance costs and downtime.

The drive is equipped with two key features to protect the motor from being overloaded;

  • I2R: Detects a build-up of residual heat in the motor that can lead to permanent damage.
  • I2T: Detects a sustained, unusually high, motor current over a relatively short period.

Motor I2 R Overload Protection Website Motor I2 T Overload Protection Website

STO

Safe Torque Off (STO) function is supported on ANCA Motion’s AMD2000 Servo Drives and safely removes the torque generating power being supplied to a motor. 

STO operates by disabling the internal PWM signals without having to shut down the drive or remove the input power. This not only eliminates the additional cost for external safety components, but also reduces the machines recovery time by only shutting down the drive’s motor power output. Another advantage of using drive integrated STO function, is a faster response time when compared with traditional contactor-based solutions.

ANCA Motion has implemented their STO functionality by monitoring two redundant control inputs. Once both control inputs are de-energized, the STO function is activated by cutting off the motor power immediately. Sophisticated diagnostics have also been implemented to achieve the desired dangerous failure detection coverage. Any detected fault in STO results in both STO’s activation and the opening of a faulty relay which can be monitored by the rest of the safety system.

STO can be used anywhere in a control system where reliable motor power removal is required or it can form the base for other advanced safety functions. 

The AMD2000 Servo Drives STO functionality provides a SIL Claim Level 3 safety function according to IEC 61800-5-2:2007, or an equivalent performance level of PL=e, Category 4, according to ISO 13849-1:2006. The PFH (dangerous failures probability per hour) of ANCA Motion’s STO function is 6.84x10-9 which leaves sufficient safety margin at system integration level. 

Sto For Website

Drive Data Logger

Drive Data logging is the measuring and recording of set parameters on a drive, over a period of time. As the data is sampled within the drive, higher sampling bandwidth can be achieved than the data logging at control unit (E.g. CNC). ANCA Motion has specifically designed and developed their servo drives and MotionBench software to configure, capture and display these parameters live, for a range of general, specific, or complex applications.

Drive data logger can monitor up to 4 parameters like current or velocity, live at any one time. Results are easily record from a predefined trigger condition/s which can be assigned to a wide range of events, E.g. an error, once a certain condition is reached. 

The drive is designed to capture high bandwidth data with sampling frequency up to 16khz. MotionBench provides a friendly user interface for configuring the drive data logger and visualizing captured data making the data simple and easy to read.

Fault diagnosing is also simplified through drive data logger, reducing the time spent on diagnosing an error and downtime for the machine. 

The graph below illustrates an example of drive data logger where current, velocity, position and DC bus voltage feedback are captured. The trigger condition in this example is set to be the enable of Drive Controlled Move (DCM).

Drive Data Logger For Website

Stand-Alone Drive Control with IO Mapping

ANCA Motion's drive control can be programmed via a CNC or directly through the drive itself, as many automation customers do not require a CNC.

The ability to control a drive by IO mapping allows for easier programming and lowers the cost for simple control requirements.

ANCA Motion have also developed an advanced standalone control where the IO inputs can be mapped to the drive’s control parameters and status words. For example, digital inputs can be mapped to trigger Drive Controlled Move (DCM) and digital outputs can be mapped to indicate the drive’s operating status.

Standalone drive control can be configured through ANCA Motion's, MotionBench software, that also captures and displays parameters live, for a range of general, specific, or complex applications. All configurations can be saved to the drive in MotionBench.

The pictures below show an example of IO mapping configuration in MotionBench.

In the digital input configuration page:

  • Digital input 1 is mapped to control drive enable/reset
  • Digital input 2 is mapped to command drive homing
  • Digital input 3 is mapped to the home switch in the system
  • Digital input 4 is mapped to enable Drive Controlled Move (DCM)

In the digital output page:

  • Digital output 1 is mapped to indicate drive’s error status
  • Digital output 2 is mapped to indicate drive’s homing status
  • Digital output 3 is mapped to indicate drive’s enable/disable status 

Drive Stand Alone Control Wit Io Mapping For Website

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