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发布时间: 2018 - 04 - 11
Technical features:1. Wide voltage range inputPower voltage: -15% - 10%, 47 Hz - 63 Hz; provided with under-voltage underclocking output function that extends the applicable range of power voltage to -30% (e.g. extending the applicable range of a 380 V VFD to 266 V - 440 V); 2. High disturbance resistance Pulse group tests: ± 4,800 VStatic (air discharge): 8,000 VStatic (contact discharge): 6,000 VProvided with EMI circuit + lightning protection design3. Phase-phase and phase-to-earth short circuit protectionAny phase-phase short circuit protection 4. Anti-corrosion treatment8 µm nickel plating, and three layers of British conformal coating for key parts;5. Power source of control signals:  External power supply of +10 V and +24 V, both provided with shor...
发布时间: 2015 - 09 - 16
Technical features> Provided with an open-loop vector control permanent magnet synchronous motor, easy to wire and highly accurate in revs control, reducing on-site faults; > High dynamic responses, rapidly responding to the given value of speed while guaranteeing the stability of output revs, which allows the system to catch up with the load changes timely, thus increasing the operation efficiency of the system;> Premium overcurrent and overvoltage resistance;> The oscilloscope function of the background monitoring software monitors the real-time operation status of the VFDs for on-site commissioning;> Parameter copying function of the keyboard;> The PWM overmodulation improves the utilization of busbar voltage and increases the output voltage of VFDs, hence is applicable to cases in...
发布时间: 2015 - 05 - 20
Technical features          1. So compact with a width, height and depth of 8.6 cm, 14.5 cm and 12 cm respectively only;       2. The panel supports external access that allow copying of parameters;       3. The standard RS485 interface constitutes an independent VFD network, making it possible to set the VFD as a master or slave for master-slave control;       4. Impulse/analog input and output channels;       5. 16 segments of speed control;       6. Multiple setting channels for running frequency/commands;       7. Provided with output terminals for disconnecting relays,...
发布时间: 2015 - 07 - 14
Technical features Unique suitability to applications that require waterproofing and dust-proofing or that are of serious pollution;> Unique metal enclosure for perfect heat dissipation;> Employing advanced surface powder coating process to provide select color and an elegant appearance;> Phosphorized metal plates provide good anti-rust and -corrosion performance;> Provided with IP54 fans for steady and reliable performance;> Input voltage: 3 AC 380 V ± 15%;> Input frequency: 47 - 63 Hz; power factor: ≥95%;> Control methods: Non-PG vector control and V/F control, where for V/F control, three profiles, i.e. straight line, polyline and multiple power, are available; > Running commands source: given through panels, terminals and RS485 communication;> Frequency giving source: given t...
发布时间: 2015 - 05 - 20
Technical features> Fast response and high starting torque: for better vibration control on starting;> Low torque ripple for more stable running;> Compact structure design and optional built-in braking units (for 30 kW and lower, braking units of standard configuration);> High overload resistance (3 s for 200% of rated loads). Perfect overvoltage suppression when applied in a punching machine;> Smart commissioning: smart setting of V/F profile that doesn’t need professionals for complex commissioning, saving manpower and time;> Compatible with synchronous motors: significantly conserves energy if combined with synchronous motors. Consumes the least power in case of equivalent unit torque;> Convenient human–machine interaction, real-time monitoring of key parameters, and LED + LCD dual-disp...
发布时间: 2015 - 05 - 20
Technical features       1.2.1 Employs high-performance current vector control, making it possible for induction motors to start with high torque.       V/F control:      1 Hz 150% torque (speed regulation range 60:1)      Open-loop vector control:  0.5 Hz 150% torque (speed regulation range 100:1)       Closed-loop vector control:  0 Hz 180% torque (speed regulation range 1,000:1)1.2.2 Various parameter adjustment modes  Static self-adjustment: best suitable to the commissioning where motors are connected with handling machines;  Rotating self-adjustment: best suitable applications where...
发布时间: 2015 - 04 - 16
Technical parametersInstructions of keyboard indicator lamps Indicator lampsNameMeaningUnit indicationHzFrequency indicator lampThe unit of currently displayed parameter is Hz (Hertz).ACurrent indicator lampThe unit of currently displayed parameter is A (Ampere).VVoltage indicator lampThe unit of currently displayed parameter is V (volt).Hz + ARevs indicator lampThe unit of currently displayed parameter is R/MIN (revolution/min).A + VPercentage indicator lampsThe unit of currently displayed parameter is % (percent).Hz + VMPa indicator lampsThe unit of currently displayed parameter is MPa (mega Pascal).Status indication(MON)Indicator lamps of command sourceOff: controlled through the keyboard.  On: controlled through the terminals.  Flashing: controlled through...
发布时间: 2015 - 05 - 20
Technical features  1. Usable under large grid fluctuation;  2. Provided with protection functions such as short circuit, low voltage, overvoltage, quick-acting fuses, overheating, etc.;  3. The braking IGBTs are ensured to work within the saturation zone.  Technical parametersModel:   CDBU300-XXXA-4 seriesFor VFDsAC power supply380 VPower0.75 kW - aboveOutput featuresMax. braking currentRefer to particular models.Activated voltage of braking690 V ± 10 VHysteretic voltage670 V ± 10 VPower supplyU (p+_p-)350 V - 800 VProtectionElectronic thermal relaysIn case of the temperature of cooling fins of the braking unit exceeds 85 °C, the protection is activated, the braking unit stops braking, and the malfunction indicator lamp ligh...
发布时间: 2015 - 04 - 09
Technical features     1.  Proprietary kernel encryption          • Proprietary new PLC encryption, eradicating any possibility of cracking.          • Multiple password protection, protecting users’ programs from malicious cracking.     2.  High-speed input          • 6 channels of high-speed counter, 2 channels 200 k + 4 channels 10 k.          • 2 channels of AB phase signal input, multiple settings.          • Built-in 32-digit high-speed comparators.          • Starts when co...
Case Application

Canworld CDE500 VFDs in CNC machine tools

日期: 2014-11-19
浏览次数: 303

Overview 

A CNC (Computer Numerical Control) machine tool is a mechatronics product that integrates with mechanical, electrical, hydraulic, pneumatic, micro-electronic and information technologies. It’s a kind of highly flexible, universal, precise and efficient automated production equipment. A CNC machine tool converts the operations and processes required for processing as well as the overall dimensions into numerical codes and inputs them to a CNC device through the control media. The CNC device will then carry out processing and computation on the input data and command the machine tool system and the drive elements to manufacture the required workpiece automatically. The introduction herein is mainly for the unique performance, premium cost-efficiency and satisfactory applications of Canworld CDE500 vector VFDs in CNC machine tools.

Introduction of Canworld CDE500 VFDs in CNC machine tools

The Canworld CDE500 series VFDs employ the advanced speedless vector control technology. The motor provides great torque under a low speed and reaches 150% of torque output in case of running frequency of 0.5 Hz. The VFDs of this series are of high speed precision and provide complete functions, and are able to automatically detect the parameters of dynamic operation of the motor and make corresponding adjustments, ensuring that the motor is running at its highest efficiency. Therefore, the speedless vector VFDs are the best choice of the machine tool industry for replacing AC servo systems. Due to the high cost-efficiency, VFDs are commonly used in machine tools.

 Canworld CDE500 VFDs in CNC machine tools

A picture of a Canworld CDE500 VFD

 

1) Employs speedless vector control to meet the requirement of the spindle of machine beds on low-speed torque. The starting torque can reach above 150% at frequency of 0.5 Hz;
2) 0 - 12 kHz in carrier frequency, ensuring a highly silent running of motors;
3) Wide range of speed regulation for various process requirements (0.00 Hz - 300 Hz);

 

4) Provided with standard 0 - 10 V or -10V - +10 V analog interfaces, which are highly universal and compatible with the interfaces of most CNC systems;
5) Control system diagram of CNC machine tools

 Canworld CDE500 VFDs in CNC machine tools

6) Electrical schematic diagram of CNC machine tools


 Canworld CDE500 VFDs in CNC machine tools


The AI1/GND terminals of a VFD provide a CNC system with the analog quantity of speed, in which AI1 and GND are respectively connected with the positive and negative signals of the analog interface in the CNC system. The running parameters of a VFD are as follows: 

 Canworld CDE500 VFDs in CNC machine tools


Advantages of Canworld CDE500 VFDs in CNC machine tools

The Canworld CDE500 VFDs completely fulfill the requirements of spindle control by a machine bed, output torque steadily under low-revs running, satisfy the processing needs of different parts and are simple and compact and can realize the true continuous speed regulation. The output frequency of the spindle revs is controlled through the external analog signals. In case that various processes (e.g. rough and finish machining) require different revs, the CNC system can output different analog voltage signals to the VFD to realize varying revs. Meanwhile, the start/stop signals are also under the control of the CNC system, which increases the automation level and prolong the service life of tools, changing the situation of imported-product dependency, significantly decreasing the operation cost of an enterprise and bringing it good economic benefit.


Case / Case
2014 - 11 - 19
点击次数: 303
Overview A CNC (Computer Numerical Control) machine tool is a mechatronics product that integrates with mechanical, electrical, hydraulic, pneumatic, micro-electronic and information technologies...
2015 - 05 - 22
点击次数: 209
Main features of Canworld lift-dedicated VFDs   Problems of control system of old-fashioned wiring program:     - Excess inrush current on starting and gear shifting. The star...
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