| Absolute Positioning | Refers to a motion control system employing position feedback devices (absolute encoders) to maintain a given mechanical location. |
|---|---|
| AC servo | A general term referring to a motor drive that generates sinusiodal shaped motor control currents. |
| Acceleration | The rate at which something increases its velocity. Acceleration is usually measured in units of velocity change for each unit of time (inches/ second(velocity)/second (time)) and in this example would be written as in./sec/sec or in./sec2. |
| Accuracy | The relative status of something compared to its absolute or perfect value. In motion control this will most often be a position description. A command may be sent to move 4.0". The accuracy of the system will be defined by how close to the absolute value of 4.0" the system can affect the move. Accuracy may be defined as a onetime incident or the average over a number of cycles or motions. Positioning accuracy will normally be defined in terms of deviation (+/- from theoretical) or limits (acceptable variation from theoretical: ie. 3.8"-4.2" define acceptable limits of variation around a theoretical point of 4.0") |
| Active Indicator | 베이스 보드 혹은 Module에 장착되어 베이스 보드 혹은 Module의 상태를 육안으로 확인할 수 있는 LED를 지칭 |
| Actual position | The position of an axis relative to the commanded position. This may be the position at the end of the commanded move or the lag between command position at any point during the move and the actual position of the axis at that point. The later is commonly referred to as following error in motion control terminology. |
| Add-On | 당사의 모듈 제품을 베이스 보드(Base Board)와 결합하여 사용하는 방식 |
| Analog servo | A servo system that utilizes analog control and feedback systems such as voltage variation, pressure changes etc. Analog servos are most commonly found in hydraulic and similar systems involving motion. |
| Analog signal | A communication within the system that is accomplished by means of a signal that varies in direct relation to the intensity or magnitude of the external quality being measured. Typical examples are a 0-10 volt motor control signal, a hydraulic pilot pressure, a pneumatic control pressure. |
| Angular Acceleration | Time rate of change of angular velocity (i.e. in a DC brushless motor) |
| Armature | Component of an electro-magnetic machine that contains the windings that conduct the power producing component of current. These are commonly found in electric motors. |
| ASIC(Application Specific Integrated Circuit) | 마이크로프로세서(Microprocessor)나 메모리 칩(Memory Chip) 등 일반 집적회로와 달리 특정한 전자?정보통신 제품에 사용할 목적으로 설계된 비메모리 반도체 칩 |
| Axes of motion | The specific major directions along which controlled movement occurs. Usually the number of these major directions employed in a specific machine. Usually defined as follows: X: Linear motion in positioning direction Y: Linear motion perpendicular to positioning direction Z: Vertical linear motion A: Angular motion around X (roll) B: Angular motion around Y (pitch) C: Angular motion around Z (yaw) |
| Axis | A principal direction along which movement of a tool, component or work piece occurs. |
| Back emf, Kemf | The voltage generated when a permanent magnet motor is rotated. This voltage is proportional to motor speed and is present whether or not the motor windings are energized. |
| Brush | Conducting material which passes current from the d.c. motor terminals to the rotating commutator |
| Brushless DC motor | Rotating self-synchronous machine with a permanent magnet rotor and with known rotor shaft positions for electronic commutation |
| Brushless servo | A servo drive in which commutation of the current is accomplished electronically rather than through the use of mechanical brushes and a commutator. In a brushless motor, the windings are on the stator and the magnetic field is provided by permanent magnets in the armature. This results in lower inertial loadings and increased heat dissipation capability over a standard brush type motor. |
| Centralized control | A control system in which all of the primary processing is done at a singlelocation rather than at multiple points throughout the system. |
| CHAMP 커넥터 | 베이스 보드에 장착된 부품으로 제어기와 터미널 블록 혹은 외부 장치와 연결하기 위한 커넥터 |
| Circular interpolation | The generation of an apparently circular motion through the coordinated movements of two axes. The actual path is a series of straight line approximations generated by software algorithms. |
| Commutation | A term which refers to the action of steering currents or voltages to the proper motor phases so as to produce optimum motor torque. In brush type motors, commutation is done electromechanically via the brushes and commutator. In brushless motors, commutation is done by the switching electronics using rotor position information obtained by Hall sensors, a tachometer, or resolver. |
| Commutator | Set of mechanical contacts arranged angularly or linearly, contacted by the brushes to provide the electrical path from the power source to the armature |
| Continuous current | Current required to develop rated torque without exceeding the temerature rating |
| Continuous power output | Steady state power output capability of a device in watts |
| Controller | The controller can range from a simple switch to a separate computer completely capable of making decisions based on the information givenby he host, or user. |
| Converter | The process of changing AC to DC and back to AC again. The term "converter" may also refer to the process in an adjustable frequency drive, consisting of a rectifier, a DC intermediate circuit, an inverter and a control unit. |
| Coordination | The integration of the movements of two or more axes of motion so that the resultant motion is a path which none of the axes are capable of independently. Coordination may also involve the use of sensors and other internal or external commands in the integration effort which assist in effecting the movement or work desired. |
| cPCI | 산업용 컴퓨터 및 텔레커뮤니케이션용 버스 방식의 표준을 말한다. 지난 90년대 초반 데스크톱 PC의 고속 입출력(I/O)버스로 채택된 132Mbps 주파수 대역폭을 가진 PCI버스를 기반으로 이를 산업용으로 전환한 시스템 |
| Current Controller | A system that utilizes an electronic method of limiting the maximum current controller available to a motor. This current is adjustable so that the motor's maximum current can be controlled and normally includes functions that serve as a protective measure to prevent extended overload conditions from damaging the motor or the controller. |
| Cut to length | A sub routine within a motion control processor or stand alone processor that is designed to feed material being processed a pre-set distance prior to performance of a secondary function such as a cut off. Feedback systems are employed to insure repeatability of the set feed length. |
| DC bus | A type of circuit or protocol that serves as a common communications pathway shared by several components and which uses a direct current voltage level as a reference. It may also be used to describe a power distribution system shared by multiple components within a machine or power distribution system. |
| Deceleration | The rate at which something decreases its velocity. Deceleration is usually measured in units of velocity change for each unit of time (Inches/ second(velocity)/ second (time)) and in this example would be written as in./sec/ sec or in./sec2. |
| Decentralized control | A control system in which the logic functions and input/output functions are located at individual pieces of equipment or sub systems and function essentially independent of each other. Normally the independent systems will have some means of communicating vital information with each other. |
| Deterministic scan time | The frequency with which a Programmable Logic Controller (PLC) executes a program, including scanning all the inputs and outputs on the system. This time is usually measured in milliseconds. PLCs will normally read or "scan" the instructions in the logic program in set, sequential manner. The time required to read a specific instruction and all of the following instructions, returning to the initial instruction is generally referred to as scan time. |
| Device level network | A means of putting sensors, actuators and other components on a common network cable that is connected to a PLC. It eliminates point -to-point wiring between the PLC and each devi |
| Diagnostic code | A code (usually alpha numeric or numeric) that is displayed on some type of operator interface or within a program that indicates the status of a monitored component. Usually diagnostic codes are used to indicate the location and nature of a fault or error condition that requires rectification. |
| Dielectric Strength | Ability of insulation to withstand a voltage with a specified maximum leakage current |
| Differential level | 아날로그 입력 신호 2개에 대해 차를 출력 |
| Digital motion control | A motion control system that utilizes binary coding for all logic and control functions. Analog inputs can normally be used on a digital system, but they must be converted through an analog to digital converter before being processed. |
| Digital servo | A servo motor (see AC servo and Analog servo) which utilizes binary coding for all parameter generation and feedback. |
| Digital signal | A signal that communicates information in electrical pulses that represent binary 1s and 0s. It is widely believed that digital signals can transmit more information more reliably in a given unit of time than analog signals. |
| DIP Switch | 여러 개의 스위치가 하나로 묶여 배열로 만들어진 기계적 스위치로 보드의 기준번지 및 IRQ Level을 설정하기 위해 ISA BUS Type 베이스 보드(BIFR/BIHR)에 장착되어 있음. |
| Direction of rotation | Direction observed when facing the shaft extention associated with the motor mounting surface |
| DMA | Direct Memory Access의 약자로 메모리와 주변I/O 사이에서 데이터가 CPU를 거치지 않고 곧바로 오가도록 해서 속도를 높이는 기술 |
| Drive | An electronic device that translates a given command from a motion controller into the electrical current that turns a motor. |
| Duty cycle | Relation between the on time and the off time of a device |
| Dynamic Link port | 보드와 보드간의 연결을 통해 신호를 교환할 때 사용되는 Port |
| E-Stop | A stop function which has all of the following requirements: - It shall override all other functions and operations in all modes. - Power to machine actuators that can cause a hazardous condition (s) shall be removed as quickly as possible without creating other hazards (e.g., by the provision of mechanical means of stopping requiring no external power, by reverse current braking for a Category 1 stop). - Reset shall not initiate a restart. - The emergency stop shall function as either a Category 0 or Category 1 stop. The choice of category of emergency stop shall be determined in accordance with the requirements of the application. - Where a Category 0 stop is used for the emergency stop function, it shall have only hardwired electromechanical components. In addition, its operation shall not depend on electronic logic (hardware or software) or the transmission of commands over a communication network or link. - Where a Category 1 stop is used for the emergency stop function, final removal of power to the machine actuators shall be ensured and shall be by means of electromechanical components. |
| Efficiency | The efficiency of a motor is the ratio of mechanical output to electrical input. It represents the effectiveness with which the motor converts electrical energy into mechanical energy. Efficiency is expressed as a percentage. |
| Electromagnetic Interference (EMI) | Electromagnetic energy disturbance that manifests itself in performance degradation, malfunction, or failure of electronic equipment |
| Electronic cam profiles | A technique used to perform non-linear motion electronically similar to that achieved with mechanical cams. |
| Electronic clutch | The process of generating a slave profile based on master position or time periods by enabling and disabling electronic cam or gearing functions. |
| Electronic gearing | A method that simulates mechanical gears by electrically synchronizing one closed-loop axis to a second axis (open- or closed-loop) through a variable ratio. |
| Electronic line shaft | A virtual axis that is used as the master axis on a machine to which other axes are synchronized by electronic gearing or camming profiles. |
| EMC/CE | Testing of electrical devices to check their ability of adhering to conducted/radiated emissions. Set by the European Directive. Applications may need line filters, cabinet bonding, and shielded cabling to assist this effort. |
| Encoder | A feedback device that translates mechanical motion into electrical signals indicative of actuator position. Incremental and absolute encoders are common varieties; as the names imply, their output indicates incremental or absolute changes of position. |
| Encoder resolution | The number of electrically identified positions occurring in 360 degrees of input shaft rotation. |
| EnDat | An interface that has become a standard for serial data transfer covering position and parameters. |
| Ethernet | An open networking standard, Ethernet is widely used in office automation and is increasingly being used for packaging machine networks. Originally developed for communications speed of 1.5 megabits/sec, newer versions permit speeds up to l00 megabits/sec. |
| Event | A change-of-state of an input parameter, such as the triggering of a limit switch or proximity sensor. |
| Fast Conversion Settling Time | 아날로그를 디지털로 바꾸는데 소요되는 시간 |
| Fault | The error received when a drive or control has attempted an illegal process and becomes disabled. |
| Feedback | The signal or signals received from a controlled machine or process to denote its response to the command signal. |
| Feedforward | A method that "precompensates" a control loop for known errors due to motor, drive, or load characteristics to improve response. It depends only on the command, not the measured error. |
| FieldBus | A process control local area network used for interconnecting sensors, actuators, and control devices to one another, as defined by ISA standard S50.02. |
| Flag Register | 인터럽트 발생 시 설정되는 레지스터 |
| Flying restart | Flying restart The ability of a drive to restart a spinning motor. This is normally done by sampling the motor speed, encoder input, or back EMF to restart the motor from the speed at which it is coasting. |
| Flying virtual master | The ability of a drive to restart a spinning motor. This is normally done by sampling the motor speed, encoder input, or back EMF to restart the motor from the speed at which it is coasting. |
| G code | A software used for programming machining processes. Typical applications include 3-axis milling and 2-axis wire cutting. |
| Gantry | An overhead framework that is designed to travel linearly in the X, Y, and/or Z axes. Tooling or other devices are generally designed into the framework to perform various functions as it moves from one location to another. |
| generator | Mathematical model that provides a square wave, triangular wave or sinusoidal wave output. |
| Hall effect sensors | Feedback device (HED) used in a brushless servo motor system to provide information for the amplifier to electronically commutate the motor. |
| Hard, real-time control | Refers to the ability of a controller to respond to an event immediately, without delay. While PLCs are inherently designed for this, PCs can be trickier. To be a hard, real-time controller, a PC-based controller's software must be considered the highest priority task, and made independent of the rest of the PCs task. |
| Hardware limit switch | A switch that is operated by some part or motion of a power-driven machine or equipment to alter the electric circuit associated with the machine or equipment. |
| Holding brake | A positive-action mechanical friction device. Normal configuration is such that when the power is removed, the brake is set. |
| Home position | A reference position for all absolute positioning movements. Usually defined by a home limit switch and/or encoder marker. Normally set at power-up and retained as long as control system is operational. |
| Homing | Locating a unique reference position at power-up for axis calibration. |
| Host | The host is generally a master computer used to direct the flow of information in and out of the motion controller. |
| Host control | Device attached to a network to interface servo motor motion control systems with a machine or factory automation system |
| Hysteresis | The difference in response of a system to an increasing or a decreasing input signal. |
| In Position Window | The range of position increments in which the axis is considered by the controller to be at the commanded position point. Can be thought of in erms of +/- N position increments from the commanded position. |
| Inching | A means of accomplishing momentary motor movement by repetitive closure of a circuit using a single pushbutton or contact element. |
| Indexer | An electronic unit that converts high-level commands from a host computer, PLC, or operator panel into step and direction pulses needed by a stepping motor driver. |
| Indexing | An axis or axes in the process of moving to a pre-programmed position, at a defined velocity and acceleration/deceleration rate. |
| Inertia | Property of a mass that causes it to resist any change in its direction of motion or speed. In a servo system, the inertia of the mass being moved is reflected back to the servo motor shaft. This is called €œreflected inertia." The servo system must be able to control this reflected inertia throughout the entire motion profile. |
| Interface | The interface is the device used to convert or isolate one power source from another, while making sure the signaled information passes on to the next device. |
| Interpolation | A coordinated move of two or more axes in a linear and/or circular motion. |
| Inverter | A drive that converts an AC, 60 Hz, power source to DC, then back to a variable frequency AC power source for a 3 phase induction motor. |
| IPC | Industrial Personal Computer의 약자로 산업용 컴퓨터를 지칭 |
| Jerk limitation | Limits the rate of acceleration change during the movement of an axis. Its purpose is to eliminate mechanical jerking when speed changes are made. |
| Jitter free synchronization | In a master/slave configuration, it refers to the slave drive matching the speed of the master at an acceleration/deceleration rate that provides to a smooth transition. |
| Jog | An axis running at a fixed velocity and acceleration/deceleration rate, in a selected direction, with no specific destination. |
| Length Units | The linear units for programming and configuring an axis, typically used in indexing, setting offsets, defining overtravel limits, etc. Length units are often defined in inches, feet, meters, or millimeters. |
| Linear | A relationship between an input and output in which the output varies in direct proportion to the input. |
| Linear acceleration | Time rate of change of linear velocity |
| Loop Update Times | The time interval between updates to calculate the process variable from the following error. |
| Maximum continuous current | The maximum root mean square (rms) current which can be continuously applied to a motor operating at low speed under specified conditions without exceeding the motor's rated temperature |
| Maximum Continuous torque | The maximum continous output torque which the motor can develop when operating at low speed under specified conditions without exceeding the motor's rated temperature |
| MIPS | Million Instructions Per Second ? a measure of a processors execution speed |
| Modulo Value | In a rotary axis, the position increment at which the axis position returns to 0, i.e. 360 degrees. |
| Motion Chip (CAMC Series) | 당사의 ASIC 기술을 적용하여 독자적으로 개발된 모션 제어 칩 |
| Motion Control | Motion control is a sub-field of automation, in which the position and/or velocity of machines are controlled using some type of device such as a hydraulic pump, linear actuator, or an electric motor, generally a servo. |
| Motion Control System | All rotational and linear electric servo and stepping motors and theirfeedback devices and controls intended for use in a system that provides precise positioning, speed control, torque control, or in any combination thereof |
| Motion profile | A method of describing a process in terms of velocity, time, and position |
| Noise | An unwanted electrical signal. Typically from Radio Frequency Interference (RFI) or Electromagnetic Interference (EMI) induced onto the drive's components, speed reference or feedback wiring, and can cause the axis to react unexpectedly. Sources of noise are AC power lines, motors, generators, transformers, fluorescent lights, CRT displays, and radio transmitters. |
| NPN 출력 | 출력회로에 NPN 트랜지스터를 사용하여 에미터(Emitter)는 0V단자에 직접 연결하고 콜렉터(Collector)를 출력단자로 사용할 수 있도록 +V와 콜렉터(Collector)를 개방(Open)시켜 놓은 출력형태 |
| Offset | A preset distance between the actual zero reference point and a programmed zero reference point. |
| Open architecture | Hardware and/or software designed in a way to provide interchangeability of components and connectivity from multiple vendors. |
| Open loop /close loop | Open loop control refers to a motion control system with no external sensors to provide position or velocity correction signals. A closed loop control is a motion control system that has position and velocity feedback to generate a correction signal by comparing its position and velocity to desired parameters. Feedback devices are typically encoders, resolvers, LVTDs and/or tachometers. |
| Open Loop Positioning | A positioning technique, utilizing step motors, in which the controller sends a sequence of commands to the step motor without absolute means of detecting whether the move was made. When the load and move velocity and acceleration are defined, open loop positioning of the motor is capable of extended operation without losing steps. |
| Operator Interface | The operator interface is the means by which the user can enter new instructions or information that the system needs. Also, it can be defined as the means to retriece feedback, data, fault information, program retrieval, etc. from the system. |
| Option Cable | 당사에서 구입한 제어기와 단자대를 연결 할 때 사용되는 Cable (ex : C6868-3TS, C6836-3TS 등) |
| Over temperature | A warning or alarm generated by a motor or drive that indicates the device is too hot. This is generally caused by the demand for too much current through the device. There may be binding at the motor, calling for more torque, or the motor or drive may be undersized. |
| Overcurrent | Any current in excess of the rated current of the drive to maintain or move to a new position at a given velocity and acceleration or deceleration rate. |
| Override | To force an axis to move during a faulted condition. Often required to get an axis to move off of an overtravel limit switch. |
| Overshoot | A system response where the output or result exceeds the desired value. |
| Peak Current | Maximum intermittent current that does not cause motor damage or irreversible degradation of motor performance |
| Peak torque | Maximum torque developed by a motor under specified conditions when the maximum allowable peak current is applied for a motor control application |
| Phasing | Adjusting the position of one axis with respect to others during synchornization or electronic line shafting. This is usually done while the axis are moving, and done to correct for small registration problems. |
| PID | Proportional, integral, derivative. A three mode motion control action where the controller has time proportioning, integral (auto reset) and derivative rate action. |
| PLC | Programmable Logic Controller is a type of computer that provides hard, real-time control of packaging and other equipment thanks to fast, repeatable deterministic scan times. |
| PLD | 프로그램이 가능한 논리 소자(Programmable Logic Device) |
| PLS | A Programmable Limit Switch is a dedicated, high-speed control that converts the rotary motion of a shaft into digital signals. PLS's are typically used to increase the accuracy of material or product positioning or registration. |
| Point-to-point wiring | A method of wiring each component on a packaging machine directly to the PLC. Hard-wiring eliminates the potential for communication delays found on a network. |
| Position error | Error caused when the difference between the actual position, and the command position is greater than a set amount. |
| Position loop | Portion of the command signals that generates the position information based on position feedback. |
| Position loop Gain | Determines how much positioning error, or following error, will be allowed by the servo system during a move. |
| Positioning | Specifying a move by giving a target position, a velocity and an acceleration. The target position can be an absolute position, or a relative position from the current position. |
| Power amplifier | Device that enables an input signal to control the flow of necessary power from the power source to the servo motor for the purpose of performing desired motion |
| Profile | Graphical representation of movement in a motion control application. This can be position vs. time, velocity vs. time or torque vs. time. |
| Profile Generator | A Profile Generator is responsible for performing all the calculations required for the motion trajectory given information about the mode of operation (velocity, gearing, incremental indexing, or absolute positioning). |
| Programming language | Interface that allows the user to control the motion system according to he demands of the user. |
| Protocol | A particular method of encoding either analog or digital information for transmission over a cable. Often used interchangeably with Standard in motion control appications. |
| Pulse Rate | The frequency of the step pulses applied to a motor driver. The pulse rate multiplied by the resolution of the motor/ drive combination (in steps per revolution) yields the rotational speed in revolutions per second. |
| Pulse width frequency | The rate at which the IGBTs can switch. |
| Pulse-width modulation | A switch-mode control method used in amplifiers and drivers to control motor voltage and current to obtain higher efficiency than linear control. PWM refers to variable on/off times (or width) of the voltage pulses applied to the transistors. |
| Quadrature | A technique that separates signal channels by 90' (electrical) in feedback devices. It is used with encoders and resolvers to detect direction of motion. |
| Quasi-S자 구동 | CAMC-5M에서 S자 구동을 구현하기 위해 직선 가감속 구동을 사용하여 S자 형태의 속도 프로파일을 만든 형태 |
| Radio frequency interference (RFI) Ramp function | Radio frequency, generally considered to be between 10 KHz and 10 GHz, disturbance that manifests itself in performance degradation, malfunction, or failure of electronic equipment |
| Rated current | Current developed at rated voltage and rated speed without exceeding the temperature rating |
| Rated speed | The maximum speed at which the servo motor can rotate. |
| Rated torque | Torque developed at rated voltage and rated speed without exceeding the temperature rating |
| Real master | Physical feedback which provides position information for a synchronized axis to follow. |
| Rectifier | Device that transforms AC power into DC for use by converter drives. |
| Referencing | Procedure to set the feedback device relative to the real world. |
| Regen | Power generated by a motor/drive system during the deceleration phase of movement. In some systems, this regen power can be used by other axis or put back on the network. |
| Regeneration | The action during motor braking, in which the motor acts as a generator and takes kinetic energy from the load, converts it to electrical energy, and returns it to the amplifier. |
| Resolver | A position transducer that uses magnetic coupling to measure absolute shaft position during one revolution. |
| Rollfeed | Function that calculates speed of a rotary axis to keep the linear speed of the feed material constant as the diameter of the rotary axis changes. |
| Rotary | Moving in a circular way, using degrees to indicate position instead of mm, or inches in a linear axis |
| S curve | S curve refers to a control pattern that accelerates and decelerates a motor slowly to reduce mechanical shock. This function is more sophisticated than linear acceleration, but does not have the performance of camming. |
| Safe off | Procedure that ensures that power will not travel from the drive to the motor. SCADA-Supervisory Control & Data Acquisition. Refers to software and hardware that (1) permits the control or management of an entire packaging line and (2) automatically collects data on that line's efficiency. |
| Sampling Time | 펄스에서 어느 순간마다 입력신호의 값을 추출하는 시간 |
| Sensor positioning I, II, III 구동 | 특정 센서 신호(Mark) 검출에 따라 3가지 구동 방법으로 사용자가 지정한 펄스 수만큼 구동(자세한 사항은 칩 매뉴얼 참고) |
| Sequence of operation | A series of steps to be executed that then causes an action in a machine. |
| SERCOS | Serial Real-time Communications Standard. An open communications protocol (adopted as IEC 1491) designed especially for motion-control networks. Defines a method for transmitting digital information over a fiber-optic cable at speeds of 2, and more recently, 4 megabits/sec. |
| Serial communications | Transmitting digital 1s and 0s in a series over a single cable, the primary method of communication used in and between packaging equipment. Parallel communications use several wires to simultaneously transmit groups of 1s and 0s. |
| Servo mechanism | An automatic, closed-loop motion control system that uses feedback to control a desired output such as position, velocity, or acceleration. |
| Servo motor | A motor that together with its resolver or encoder is capable of being precisely controlled. A resolver or encoder provides constant and highly accurate feedback on the motor's exact position, speed and torque to the drive that powers it. |
| Settling time | The time required for a parameter to stop oscillating or ringing and reach its final value. |
| SinCos | An encoder that outputs both digital and high resolution analog signals used in servo control in packaging machines. |
| Sink | 출력이 GND 상태로 되어 외부의 전원을 받아 들어는 것(Source에 반대 개념). |
| Software limit switch | A software function that turns physical outputs on and off, depending on switch the level of a specified input. Servomotors, resolvers or encoders usually offer the input for software limit switches. |
| SSI | Acronym for Serial Synchronous Interface. This is a type of multi-turn absolute encoder. The position information is sent from the encoder to the device reading the encoder as a serial string in Gray code format. |
| Static Torque | The maximum torque of a motor available at zero speed. |
| Stepping motor | Polyphase synchronous motor, the rotor of which rotates in descrete angular increments when the stator windings are energized in a programmed manner either by appropriately timed direct current states or by polyphase alternating current |
| Synchronization | The condition that occurs when several functions of a machine (mechanical, servo or software) follow a common control signal and are in a specific position according to this signal. |
| Tachometer | An electromagnetic feedback transducer providing an analog voltage signal proportional to rotational speed. |
| Task | A software system control that determines the execution rates and priority levels for software modules running in a motion control or PLC. |
| TCP/IP | Transmission Control Protocol/Internet Protocol. A method of encoding data into a series of "packets" for transmission over a network. Designed initially for use on the Internet, TCP/IP is rapidly penetrating non-Internet uses, including the factory floor. |
| Teach position | The position of an axis that is "taught" into the motion control program. The axis is moved, typically by jogging, to the desired position. This "teach position" is then entered into the motion program automatically by the control (using whatever steps are required by the motion control manufacturer) and becomes the new programmed position. The motion control used must have the ability to do this type of program manipulation. |
| Telegram | Communication data packet between controller and device. |
| TeleService | The ability to remotely access a motion control or PLC for service purposes. |
| Torque | Rotary equivalent to force. Equal to the product of the force perpendicular to the radius of motion and distance from the center of rotation to the point where the force is applied. |
| Torque limitation | A servo function that allows the monitoring and limiting of the current supplied to a servo motor. |
| Torque, continuous | Torque needed to drive a motor load over a continuous time. |
| Torque, peak | Maximum amount of torque a motor can deliver when the highest allowable peak currents are applied. |
| Torque, rms | Root Mean Square (rms) is a mathematical method to determine a steadfast or average torque for a motor. |
| Torque, stall | The maximum torque without burning out the motor. |
| Tuning | Adjusting the servo drive's internal characteristics to give it the ability to control the reflected inertia and gives the axis a smooth position/velocityprofile. |
| Twisted pair | 선로에서 발생하는 기전력이 서로 상쇄되어 노말모드 노이즈 성분을 제거하는 특성을 가지는 선 |
| UART | Universal Asynchronous Receiver Transmitter의 약자로 컴퓨터에게 RS-232C DTE 인터페이스를 제공함으로써, 모뎀이나 기타 다른 직렬장치들과 통신하거나 데이터를 주고받을 수 있게 하는 통신 칩을 지칭. |
| Velocity | The speed at which a motor or mechanical system runs. |
| Velocity loop | A servo control function that sums a velocity command signal with a speed feedback signal from a servo motor, and outputs the difference as a torque command signal. |
| Velocity Loop Proportional Gain | Determines how much velocity error will be allowed by the servo system during a move. See also: Tuning |
| Virtual master | An encoder signal created in the software of a motion control to allow synchronizing multiple servo systems. A typical machine may have several virtual master encoders. |
| Voltage Constant | KE = The back EMF generated by a DC motor at a defined speed. Usually quoted in volts per 1000 rpm. |
| Zero point of feedback | The point at which a servomotor's encoder position and the machines physical position line up. If these two points don't agree, the servo axis must be "homed." |
| 갠트리 구동 (Gantry Drive) | 2축이 기구적으로 묶여 구동되는 형태 |
| 단자대 | 서보 드라이버와 제어기를 연결 및 디지털 혹은 아날로그 입출력 등의 기타 외부장치를 연결하기 위한 중계기 |
| 동기제어 (Synchronous Control) | 실시간 제어(Real-time control)를 의미하며, 실제의 시간과 제어시간을 동시에 하여 제어하는 기법 |
| 로직 그라운드(LGND) | 당사 모션 제어기와 서보 드라이버의 로직(Logic)을 묶어 신호의 0점으로 잡아주는 것 |
| 로타리 인코더 (Rotary Encoder) | 모터 회전축(shaft)의 회전각도를 전기적인 신호(펄스)로 변환하여 출력하는 장치 |
| 베이스 보드(Base board) | 각종 모듈을 조합하여 사용자가 원하는 형태의 제어 보드를 만들기 위한 제품으로 Bxxx 시리즈(Series)가 있음 |
| 보간구동 (Interpolation Drive) | 둘 이상의 축을 이용하여 특정 위치로 최단경로를 통해서 이동하도록 하는 구동 |
| 분해능(Resolution) | 아날로그 데이터를 정밀하게 표현할 수 있는 능력으로 12bit의 분해능을 갖는 당사의 AIO Module의 경우 212(4096)의 단계로 아날로그 데이터를 표현할 수 있다. |
| 상승에지,하강에지(Rising Edge,Falling Edge) | 디지털 신호, 특히 구형파에서 레벨이 변화할 때 레벨이 올라가는 순간을 Rising Edge, 레벨이 떨어지는 순간을 Falling Edge라 한다 |
| 서지 전압(Surge Voltage) | 어떤 기기,기계,기구 혹은 재료(이하 기기라함)의 제조자 (또는 설계자)가 그 기기에 대하여 정해 놓은 내전압(耐電壓)을 훨씬 초과하는 과전압으로서, 그 과전압이 그 기기에 들어오면 그 기기 및 그 기기에 접속되고 연결되어 있는 장치, 부품 등을 소손 파손시키거나 그 기기의 동작을 방해하는 이상전압(異常電壓) |
| 슈미트-트리거 (Schmitt-trigger) | Logic에서 High, Low Level을 판단하기 위해 파형을 정형시켜 주는 기능을 가진 회로 |
| 스크립트/캡션 (Script/Caption) 기능 | CAMC-FS, CAMC-IP 칩에서 지원되는 기능으로 13개의 명령어를 예약하여 기능구동 중 자동으로 실행되는 기능 |
| 스플라인 보간 (SPLine Interpolation) | 목표 위치들을 연결하여 부드러운 곡선을 생성하는 기능 |
| 슬레이브 구동(Slave Drive) | Master와 Slave로 구성된 2개의 축이 동기되어 구동하는 방식 |
| 엑츄에이터(Actuator) | 물리 량(유량, 구동 전류, 전기에너지 등)을 마이크로 컴퓨터의 출력인가전기 신호를 이용하여 발생시키는 것 |
| 오버라이드(Override) | 구동 중 기 설정된 목표위치 혹은 속도 값을 번복하여 새로운 값에 의한 구동 Profile 형성 |
| 원호 보간 (ARC Interpolation) | Dispensing, 가공, 페인팅과 같은 직선과 직선이 만나는 코너 점에서 원호를 삽입하여 직선 → 원호 → 직선 보간을 연속적으로 제어 |
| 인트럽트(Interrupt) | 진행 중이던 작업을 중지시키고 중요(긴급)한 일을 먼저 수행한 후 다시 진행 중이던 작업을 계속 수행 |
| 채터링(Chattering) | 기계적 스위치 소자에 의해 접점이 붙거나 떨어질 때 기계적인 진동 등의 기타 환경에 의해 실제로는 매우 짧은 시간 안에 접점이 붙었다가 떨어지는 것을 반복하는 현상. |
| 트리거(Trigger) | 기계적 스위치는 ON을 유지시키기 위해선 접점이 계속 붙어있어야만 유지된다. 그런데 반도체를 사용할 경우 한번(순간)만 ON시키면 접점이 떨어져도 ON 상태가계속 유지된다. 이런 경우 한번(순간)만 ON시키는 신호이며 모션 동작에서는 신호의 상승/하강 에지가 발생했을 때 외부 장치와 동기를 맞추기 위해 사용하는 신호로 사용된다. |
| 파워 TR출력 방식 | 기본 포토 커플러 출력에 트랜지스터(Trangister)을 달아 전류를 증폭하기 위한 방식 |
| 포토-커플러 (Photo-coupler) | 전기적인 신호를 빛으로 변환하여 전기적인 절연을 유도하기 위한 스위칭 소자 |
| 풀업 저항 (Pull-up Resistance) | OPEN이란 0도 1도 아닌 상태로 CPU에서 인식을 하지 못하는 GND,OPEN 또는 HIGH,OPEN의 상태로 출력될 경우 High Level로 인식시켜 주기 위한 저항 |
| 5V Level Tolerant | 신호레벨을 구분하는 범위 |
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