Shenzhen Viyork Technology Co., Ltd

GE CPU Module IC695CPU320(2023年01月28日)

viyorktech — 2023-01-28T18:25:30+0900

https://www.viyorktech.com/products/ge-cpu-module-ic695cpu320.html

Product Description
The IC695CPU320 is a Central Processing Unit from the GE Fanuc PACSystems RX3i Series. The IC695CPU320 has an Intel Celeron-M microprocessor rated for 1 GHz, with 64 MB of user (random access) memory and 64 MB of flash (storage) memory. RX3i CPUs are programmed and configured to control machines, processes, and material handling systems in real time.

The IC695CPU320 has a pair of independent serial ports built into its chassis. Each of the two serial ports occupies a slot on the system base. The CPU supports SNP, Serial I/O, and Modbus Slave serial protocols. In addition, IC695CPU320 has a dual backplane design with bus support for RX3i PCI and a 90-30-style serial bus. Like other CPUs in the Rx3i product family, IC695CPU320 provides automatic error checking and correction.

IC695CPU320 uses Proficy Machine Edition, the development environment common to all GE Fanuc controllers. Proficy Machine Edition is made for creating, running and diagnosing operator interface, motion and control applications.

Eight indicator LEDs on the CPU help with troubleshooting. Each LED answers to a separate function, except for the two LEDs labeled COM 1 and COM 2, which belong to different ports rather than to different functions. The other LEDs are CPU OK, Run, Outputs Enabled, I/O Force, Battery, and Sys Flt -- which is an abbreviation for "system fault." The I/O Force LED indicates whether Override is active on a bit reference. When the Outputs Enabled LED is lit, then output scan is enabled. Other LED labels are self-explanatory. Both the LEDs and the serial ports are clustered on the front of the device for the easy visibility.

Technical Specifications
Processing Speed:1 GHz
CPU Memory:20 Mbytes
Floating Point:Yes
Serial Ports:2
Serial Protocols:SNP, Serial I/O, Modbus Slave
Embedded Comms:RS-232, RS-486
Technical Information

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GE CPU Module IC693CPU374(2023年01月28日)

viyorktech — 2023-01-28T18:24:55+0900

https://www.viyorktech.com/products/ge-cpu-module-ic693cpu374.html

Product Description
General: The GE Fanuc IC693CPU374 is a single-slot CPU module with a processor speed of 133 MHz. This module is embedded with an Ethernet interface.

Memory: The total user memory used by the IC693CPU374 is 240 KB. The actual size associated with program memory for the user primarily depends on the configured memory types, such as Register memory (%R), Analog input (%AI) and Analog output (%AO). The amount of memory configured for each of these memory types is 128 to around 32,640 words.

Power: The power required for the IC693CPU374 is 7.4 watts from 5V DC voltage. It also supports a RS-485 port when the power is supplied. The protocol SNP and SNPX are supported by this module when the power is supplied through this port.

Operation: This module is operated within the ambient temperature range of 0°C to 60°C. The temperature required for the storage is in between -40° C and +85°C.

Features: The IC693CPU374 is equipped with two Ethernet ports, which both have auto sensing capabilities. This module has eight baseplates for each system, including a CPU baseplate. The remaining 7 are expansion or remote baseplates and are compatible with a programmable communication coprocessor.

Battery: The IC693CPU374 module's battery backup can run for several months. The internal battery can serve as the power supply for up to 1.2 months, and an optional external battery can support the module for a maximum of 12 months.

Technical Information

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GE CPU Module IC693CPU363(2023年01月28日)

viyorktech — 2023-01-28T18:24:31+0900

https://www.viyorktech.com/products/ge-cpu-module-ic693cpu363.html

Product Description
The GE Fanuc IC693CPU363 is a Module of GE Fanuc series 90-30 PLC systems. It connects to one of the CPU slots on a baseplate. This CPU is of type 80386X and has a speed of 25Mz. It gives the baseplate the ability to connect to up to seven remote or expansion baseplates. The power required for it to work is +5VDC and 890mA current. It has a battery to back up a clock and can be overridden. When it operates, its temperature can vary from 0 to 60 degrees in ambient mode.

GE Fanuc IC693CPU363 module has three ports. The first port supports SNP or SNPX slave on the power connector. The two other ports support SNP or SNPX master and slave, and RTU slave. It is also compatible with RTU master and CCM Modules. To support RTU master, a PCM module is needed. Connectivity is also provided by a LAN port that supports FIP, Profibus, GBC, GCM, and GCM+ modules. It also supports multidrop.

The total user memory of the GE Fanuc IC693CPU363 module is 240 kilobytes and the typical scan rate of 1 kilobyte of logic is 0.22 milliseconds. It has 2048 input (%I) and 2048 output (%Q) points. The discrete global memory (%G) of the CPU is 1280 bits. Internal Coils (%M) take a space of 4096 bits and Output or temporary Coils (%T) deploy 256 bits. System Status Referenced (%S) use 128 bits.

The Register Memory (%R) can be configured with either Logicmaster or Control v2.2. Logicmaster configures the GE Fanuc IC693CPU363 Module memory in 128 word increments up to 16,384 words. Control v2.2 can do the same configuration deploying up to 32,640 words. Analog inputs (%AI) and outputs (%Q) can be configured exactly like the Register Memory using the same programs. GE Fanuc IC693CPU363 has system registers that consist of 28 words.

Technical Specifications
Processor Speed :25 MHz
I/O Points :2048
Register Memory :240KBytes
Floating Point Math:Yes
32 BIT system
Processor:80386EX
Technical Information
CPU363 Catalog Number IC693CPU363

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GE Communications Module IC693CMM311(2023年01月28日)

viyorktech — 2023-01-28T18:23:58+0900

https://www.viyorktech.com/products/ge-communications-module-ic693cmm311.html

Product Description of GE Communications Module IC693CMM311
The GE Fanuc IC693CMM311 is a Communications Coprocessor Module. This component provides a high-performance coprocessor for all Series 90-30 modular CPUs. It cannot be used with embedded CPUs. This covers models 311, 313, or 323. This module supports GE Fanuc CCM communications protocol, the SNP protocol and the RTU (Modbus) slave communications protocol. It is possible to configure the module using the configuration software. Alternatively, users can opt for a default setup. It has two serial ports. Port 1 supports RS-232 applications while Port 2 supports either RS-232 or RS-485 applications. Both ports are wired to the module's single connector. For this reason, the module has been supplied with a wye cable (IC693CBL305) in order to separate the two ports to make wiring easier.

It's possible to use up to 4 Communications Coprocessor Modules in a system that has a CPU of 331 or above. This can only be done via the CPU baseplate. Inversions before 4.0, this module presents a special case when both ports are configured as SNP slave devices. The ID value –1 in a Cancel Datagram request received at either slave device will end up cancelling all established Datagrams on both slave devices within the same CMM. This is different to a CMM711 module, which has no interaction between datagrams established on the serial ports. Version 4.0 of the IC693CMM311, which was released in July 1996, solved the issue.

Technical Specifications of GE Communications Module IC693CMM311
Module Type:Communications Co-Processor
Communication Protocols:GE Fanuc CCM, RTU (Modbus), SNP
Internal Power:400 mA @ 5 VDC
Comm. Ports:
Port 1:Supports RS-232
Port 2:Supports either RS-232 or RS-485

Technical Information of GE Communications Module IC693CMM311
Except for the serial port connectors, the user interfaces for the CMM311 and CMM711 are the same. The Series 90-70 CMM711 has two serial port connectors. The Series 90-30 CMM311 has a single serial port connector supporting two ports. Each of the user interfaces is discussed below in detail.

The three LED indicators, as shown in the figures above, are located along the top front edge of the CMM board.

Module OK LED
The MODULE OK LED indicates the current status of the CMM board. It has three states:

Off: When the LED is off, the CMM is not functioning. This is the result of a hardware malfunction (that is, the diagnostic checks detect a failure, the CMM fails, or the PLC is not present). Corrective action is required in order to get the CMM functioning again.

On: When the LED is steady on, the CMM is functioning properly. Normally, this LED should always be on, indicating that the diagnostic tests were successfully completed and the configuration data for the module is good.

Flashing: The LED flashes during power-up diagnostics.

Serial Port LEDs
The remaining two LED indicators, PORT1 and PORT2 (US1 and US2 for the Series 90-30 CMM311) blink to indicate activity on the two serial ports. PORT1 (US1) blinks when port 1 either sends or receives data; PORT2 (US2) blinks when port 2 either sends or receives data.

Serial Ports of GE Communications Module IC693CMM311
If the Restart/Reset pushbutton is pressed when the MODULE OK LED is on, the CMM will be re-initialized from the Soft Switch Data settings.

If the MODULE OK LED is off (hardware malfunction), the Restart/Reset pushbutton is inoperative; power must be cycled to the entire PLC for CMM operation to resume.

The serial ports on the CMM are used to communicate with external devices. The Series 90-70 CMM (CMM711) has two serial ports, with a connector for each port. The Series 90-30 CMM (CMM311) has two serial ports, but only one connector. The serial ports and connectors for each PLC are discussed below.

Serial Ports for the IC693CMM311

The Series 90-30 CMM has a single serial connector that supports two ports. Port 1 applications must use the RS-232 interface. Port 2 applications can select either the RS-232 or

RS-485 interface.

NOTE:

When using the RS-485 mode, the CMM can be connected to RS-422 devices as well as RS-485 devices.

The RS-485 signals for port 2 and the RS-232 signals for port 1 are assigned to the standard connector pins. The RS-232 signals for port 2 are assigned to normally unused connector pins.

IC693CBL305 Wye Cable
A Wye cable (IC693CBL305) is supplied with each Series 90-30 CMM and PCM module. The purpose of the Wye cable is to separate the two ports from a single physical connector (that is, the cable separates out the signals). In addition, the Wye cable makes cables used with the Series 90-70 CMM fully compatible with the Series 90-30 CMM and PCM modules.

The IC693CBL305 Wye cable is 1 foot in length and has a right angle connector on the end that connects to the serial port on the CMM module. The other end of the cable has dual connectors; one connector is labelled PORT 1, the other connector is labelled PORT 2 (see figure be- low).

The IC693CBL305 Wye cable routes the Port 2, RS-232 signals to the RS-232 designated pins. If you do not use the Wye cable, you will need to make a special cable to connect RS-232 de- vices to Port 2.

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GE Communications Module IC693CMM302(2023年01月28日)

viyorktech — 2023-01-28T18:23:23+0900

https://www.viyorktech.com/products/ge-communications-module-ic693cmm302.html

Product Description
The GE Fanuc IC693CMM302 is an Enhanced Genius Communications Module. It is quite commonly know as GCM+ for short. This unit is an intelligent module which enables automatic global data communications between any Series 90-30 PLC and up to a maximum of 31 other devices. This is done on a Genius bus. It is possible for the IC693CMM302 GCM+ to be installed on a number of different baseplates, including expansion or remote baseplates. That being said, the most efficient performance of this module can be achieved by installing it in the CPU baseplate. This is because the sweep impact time of the module is dependent on the PLC model and varies according to which baseplate it is located in.

Users must note that if a GCM module is already present within a system, they will not be able to implement the GCM+ module. It is actually possible to have multiple GCL+ modules in a single Series 90-30 PLC system. Each GCM+ module can have its own separate Genius bus. In theory, this would enable a Series 90-30 PLC (with three GCM+ modules installed) to automatically exchange global data with up to 93 other Genius devices. Additional uses for the IC693CMM302 GCM+ module include data monitoring of PCs or industrial computers and peer-to-peer communications between devices on the bus. On the front of the IC693CMM302 GCM+ unit, there are LEDs to show the operating status. These will be switched on if everything is operating normally. The LED marked COM will blink intermittently if there any bus errors. It will turn off if the bus has failed.

Technical Information
IC693CMM302 Enhanced Genius Communications Module (GCM+)

The Enhanced Genius Communications Module (GCM+), IC693CMM302, is an intelligent module that provides automatic global data communications between a Series 90-30 PLC and up to 31 other devices on a Genius bus.

The GCM+ can be located in any standard Series 90-30 CPU baseplate, expansion baseplate, or remote baseplate. However, for most efficient operation, it is recommended that the module be installed in the CPU baseplate since the sweep impact time of the GCM+ module depends on the model of PLC and the baseplate where it is located. Note: if a GCM module is present in a system, GCM+ modules cannot be included in the system.

Multiple GCM+ modules can be installed in a Series 90-30 PLC system with each GCM+ having its own Genius bus serving up to 31 additional devices on the bus. For example, this allows a Series 90-30 PLC with three GCM+ modules to exchange global data with as many as 93 other Genius devices automatically. In addition to basic global data exchange, the GCM+ module can be used for various applications such as:

Data monitoring by a personal computer or an industrial computer.

Monitoring data from Genius I/O blocks (although it cannot control Genius I/O blocks).

Peer-to-peer communications among devices on the bus.

Master-slave communications among devices on the bus (emulates remote I/O). The Genius bus connects to the terminal board on front of the GCM+ module.

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GE Battery Module IC695ACC302(2023年01月28日)

viyorktech — 2023-01-28T18:22:49+0900

https://www.viyorktech.com/products/ge-battery-module-ic695acc302.html

Product Description
The IC695ACC302 is an Auxiliary Smart Battery module from the GE Fanuc RX3i Series.

Technical Information Specifications
ParameterSpecification
Battery capacity15.0 Amp-hours
Lithium content5.1 grams (3 cells @ 1.7 grams/cell)
Physical dimensions5.713” long x 2.559” wide x 1.571” high (145.1 x 65.0 x 39.9 mm)
Weight224 grams
Case materialBlack, flame-retardant ABS plastic
Connection2’ (60cm) twisted red/black 22 AWG (0.326mm2) cable with female two-pin connector compatible with the battery connector on PAC Systems CPUs.
Operating temperature range0 to +60ºC
Nominal shelf life7 years @ 20ºC without the enabling adapter cable attached

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GE Analog Module IC693ALG392(2023年01月28日)

viyorktech — 2023-01-28T18:21:54+0900

https://www.viyorktech.com/products/ge-analog-module-ic693alg392.html

Product Description
IC693ALG392 is an Analog Current/Voltage Output Module for the PACSystems RX3i and Series 90-30. The module has eight single-ended output channels with voltage outputs and/or current loop outputs based on installation by the user. Each channel can be generated the configuration software for the subsequent scopes (0 to +10 volts) as unipolar, (-10 to +10 volts) bipolar, 0 to 20 milliamps, or 4 to 20 milliamps. Each of the channels is able to translate 15 to 16 bits. This is reliant on the range that is preferred by the user. All eight channels are renewed every 8 milliseconds.

The IC693ALG392 module reports an Open Wire fault to the CPU for each channel when in current modes. The module can go to a known last state when system power is disturbed. If external power is continuously applied to the module, each output will keep its last value or reset to zero as configured. Installation in any I/O slot of an RX3i or Series 90-30 system is possible.

This module must gain its 24 VDC power from an outside source that is connected to the terminal block in a direct manner. Each output channel is single-ended and factory adjusted to .625 μA. This may change based on voltage. The user should note that in the presence of harsh RF interference, the exactness of the module may be reduced to +/-1% FS for current outputs and +/- 3% FS for voltage outputs. One should also note that this module must be fixed in a metal enclosure for correct functioning.

Technical Specifications
Technical Information

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What Are the Functions of Mitsubishi Inverters?(2021年)

viyorktech — 2021-11-25T16:31:42+0900

https://www.viyorktech.com/products/inverter.html

Ⅰ. Frequency conversion energy saving of Mitsubishi inverter

The energy saving of Mitsubishi inverters is mainly manifested in the application of fans and water pumps. In order to ensure the reliability of production, all kinds of production machinery have a certain margin when they are designed and equipped with power drives.

When the ac servo motor cannot run under full load, in addition to meeting the power drive requirements, the excess torque increases the consumption of active power and causes a waste of electrical energy.

The traditional speed adjustment method of fans, pumps and other equipment is to adjust the air supply and water supply by adjusting the inlet or outlet baffle and valve opening. The input power is large, and a large amount of energy is consumed in the interception process of the baffle and valve. When using Mitsubishi frequency converter for frequency conversion speed regulation, if the flow requirement is reduced, the requirement can be met by reducing the speed of the pump or fan.

Ⅱ. Power factor compensation energy saving of Mitsubishi inverter

Reactive power not only increases the line loss and heat generation of the equipment, but more importantly, the reduction of the power factor leads to a reduction in the active power of the grid. A large amount of reactive power is consumed in the line. The efficiency of the industrial automation devices is low and the waste is serious. After using Mitsubishi inverter frequency conversion speed control device, due to the function of the internal filter capacitor of the Mitsubishi frequency converter, the reactive power loss is reduced and the active power of the power grid is increased.

Ⅲ. Soft start energy saving of Mitsubishi inverter

1. The hard start of the motor will cause a serious impact on the power grid, and it will also require too much power grid capacity. The large current and vibration generated during the start will cause great damage to the baffle and valve, and it will greatly affect the service life of the equipment and pipelines.

After using the frequency conversion energy-saving device, using the soft start function of the Mitsubishi frequency converter, the starting current will start from zero, and the maximum value will not exceed the rated current, which reduces the impact on the power grid and the requirements for power supply capacity, and extends the service life of equipment and valves, saving equipment maintenance costs.

2. In theory, Mitsubishi inverter can be used in all mechanical equipment with motors. When the motor starts, the current will be 5-6 times higher than the rated value, which will not only affect the service life of the motor, but also consume more. When the system is designed, there will be a certain margin in the selection of the motor, and the speed of the motor is fixed.

But in the actual use process, sometimes it needs to run at a lower or higher speed, so it is very necessary to carry out frequency conversion transformation. Mitsubishi inverter can realize soft start of motor and compensate power factor.

Mitsubishi, Yaskawa, Pansonic, Ovation, Emerson, Honeywell, Allen-Bradley, Schneider, Siemens, ABB, GE Fanuc, Rosemount and Yokogawa industrial automation, as import automation system spare parts sales and system integration, with the efforts of all employees of the company and the support of our customers and colleagues in the industry, company's business is expanding rapidly, and its business scope is all over China and the world. We aim to become one of the best and most popular industrial automation products supplier in the world.

Anti-stall Function of Mitsubishi Inverter(2021年)

viyorktech — 2021-11-25T16:31:20+0900

https://www.viyorktech.com/products/mitsubishi-industrial-automation/

The anti-stall function of Mitsubishi inverters mainly includes two aspects:

Ⅰ. Stall prevention during acceleration of Mitsubishi inverter

1. If the preset acceleration time is too short, it is easy to trip due to overcurrent.

2. If the acceleration time is too long, it will affect the operating efficiency of the industrial electrical automation machine. Moreover, the working conditions of the production machine also change from time to time, which brings difficulties to the user when presetting the "acceleration time", and it is difficult to preset the right time quickly.

3. When the Mitsubishi frequency inverter has overcurrent during acceleration, it is not necessary to trip, but start the "prevent trip" program (also called the automatic processing program).

The specific method is: if the current exceeds the preset upper limit (ie the maximum allowable value of the acceleration current) during acceleration, the output frequency of the Mitsubishi inverter will no longer increase, and the acceleration will be suspended temporarily until the current drops to the upper limit. Then continue to accelerate after the following.

Ⅱ. Stall prevention during deceleration of Mitsubishi inverter

For loads with large inertia, if the deceleration time is preset to be too short, the function of the drag system will release too fast and cause overvoltage in the DC circuit.

If the DC voltage exceeds the upper limit during the deceleration of the Mitsubishi industrial automation inverter (that is, the maximum allowable DC voltage), the output frequency of the Mitsubishi inverter will no longer decrease, and the deceleration will be suspended temporarily. Continue to decelerate after the DC voltage drops below the set value. We often call this function an anti-stall function.

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What Should Be Paid Attention to when Installing Mitsubishi Inverter(2021年)

viyorktech — 2021-11-25T16:30:59+0900

https://www.viyorktech.com/products/mitsubishi-industrial-automation/

Ⅰ. Precautions for installation of Mitsubishi inverter

1. The ambient temperature is required to be in the range of -10℃ to 40℃. If the temperature exceeds 40℃, heat dissipation measures or cooling should be taken;

2. The humidity requirement is less than 95%, and there is no condensation;

3. The Mitsubishi frequency inverter is installed in a place where the vibration is less than 5.9m/s (0.6g);

4. Avoid installing in places exposed to direct sunlight;

5. Avoid installing Mitsubishi frequency inverters in dusty and metal powder places;

6. It is strictly forbidden to install Mitsubishi frequency inverters in places with corrosive and explosive gases.

In the transmission system composed of Mitsubishi inverters and motors, if the inverter, industrial control devices, and sensor are installed in a cabinet, the external noise emitted by them must be limited at the main connection point, so noise filters and sensors must be installed in the cabinet in coming line reactor. The cabinet should also meet electromagnetic compatibility requirements.

Ⅱ. The working principle of Mitsubishi inverter

The external electromagnetic interference of Mitsubishi inverters is inevitable. Mitsubishi industrial automation inverters are generally installed in metal cabinets. For the instruments and equipment outside the metal cabinet, the radiation emission of the Mitsubishi inverter itself is minimally affected.

In the mechanical or system design stage, considering the spatial isolation of noise sources and the use of noise absorbers are the most effective measures to reduce interference, but the cost is relatively high. If there are only individual sensitive equipment on site, install the power filter on the sensitive equipment side alone to reduce the cost.

In the transmission system composed of Mitsubishi inverters and motors, inverters and contactors can be noise sources, and automation devices, encoders, and sensors are susceptible to noise interference.
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How Servo Drive Works?(2021年)

viyorktech — 2021-11-25T16:30:35+0900

https://www.viyorktech.com/

The working principle of a servo drive is a controller used to control a servo motor, and its function is similar to that of a frequency converter acting on an ordinary AC motor. It is a part of the servo system and is mainly used for high-precision positioning systems.

1. What is servo drive and how it works?
Do you know how does a servo drive work? At present, mainstream servo drives all use digital signal processors as the control core, which can realize more complex control algorithms and realize digitization, networking and intelligence. Power inverter usually use drive circuits centered on smart power modules. The drive circuit is integrated in the IPM and has fault detection and protection circuits, such as overvoltage, overcurrent, overheating and undervoltage. A soft start circuit is also added to the main loop.

In order to reduce the influence of the start-up process on the driver, the power drive unit first rectifies the input three-phase power or mains power through a three-phase full-bridge rectifier circuit to obtain the corresponding direct current. After three-phase AC or mains rectification, a three-phase sine wave PWM voltage inverter is used to drive a three-phase permanent magnet synchronous AC servo motor. The entire process of the power drive unit can be simply said to be an AC-DC-AC process.

With the large-scale application of servo systems, the use of servo drives, servo drive debugging and servo drive maintenance are all important technical issues of industrial electrical automation for today's servo drives.

2. Servo drives of AC servo motors are widely used
Servo drives are an important part of modern motion control and are widely used in automation equipment, especially servo drives used to control AC permanent magnet synchronous motors have become a current research hotspot.

Brief Introduction of the Working Principle of Servo Drive(2021年)

viyorktech — 2021-11-25T16:30:15+0900

https://www.viyorktech.com/products/ac-servo-motor.html

How Does the Servo Drive Work
At present, mainstream servo drives all use a digital signal processor (DSP) as the control core, which can realize more complex control algorithms and realize digitization, networking and intelligence. Power devices generally use a drive circuit designed with an intelligent power module (IPM) as the core. The drive circuit is integrated in the IPM, and it has fault detection and protection circuits such as overvoltage, overcurrent, overheating, and undervoltage. Soft start-up circuit is also added into the main circuit to reduce the impact of the start-up process on the drive.

The power drive unit first rectifies the input three-phase power or mains power through the three-phase full-bridge rectifier circuit to obtain the corresponding direct current. After the three-phase power or mains power is rectified, the three-phase sinusoidal PWM voltage inverter is used to drive the three-phase permanent magnet synchronous AC servo motor. The entire process of the power drive unit can be simply said to be an AC-DC-AC process. The main topology circuit of the rectifier unit (AC-DC) is a three-phase full-bridge uncontrolled rectifier circuit.

With the large-scale application of servo systems, the use of servo drives, servo drive debugging, and servo drive maintenance are all important technical issues for servo drives today. More and more providers of industrial control devices have conducted in-depth technical research on servo drives.

High performance servo drives are an important part of modern motion control and are widely used in automation equipment such as industrial robots and CNC machining centers. In particular, servo drives used to control AC permanent magnet synchronous motors have become a research hotspot at home and abroad. Current, speed, and position 3 closed-loop control algorithms based on vector control are commonly used in the AC servo motor design. Whether the design of speed closed loop in the algorithm is reasonable or not plays a key role in the overall servo control system, especially in the speed control performance.

Requirements of Servo Motor Driver on System

1. Wide speed governing range

2. High positioning accuracy

3. There is sufficient transmission rigidity and high speed stability

4. Quick response, no overshoot
In order to ensure productivity and processing quality, in addition to higher positioning accuracy, the characteristic of good fast response is also required, that is, the response of the tracking command signal is required to be fast, because the CNC system requires a big enough acceleration of speeding up and slowing down when starting and braking, so as to shorten the transition process time of the feed system and reduce the contour transition error.

5. Low speed and large torque, strong overload capacity
Generally speaking, the servo drive has an overload capacity of more than 1.5 times in a few minutes or even half an hour, and can be overloaded by 4 to 6 times in a short period of time without damage.

6. High reliability
The feed drive system of the CNC machine tool is required to have high reliability, good working stability, strong environmental adaptability such as temperature, humidity, and vibration, and strong anti-interference ability.

Requirements of panasonic servo drive for the motor

1. The motor can run smoothly from the lowest speed to the highest speed, and the torque fluctuation should be small. Especially at low speeds such as 0.1r/min or lower, there is still a steady speed without creeping.
2. The motor should have a large and long-time overload capacity to meet the requirements of low-speed and large torque. Generally, the DC servo motor is required to be overloaded by 4 to 6 times within a few minutes without being damaged.
3. In order to meet the requirements of fast response, the motor should have a small moment of inertia and a large locked-rotor torque, and have the smallest possible time constant and starting voltage.
4. The motor should be able to withstand frequent starting, braking and reverse rotation.

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Detailed Explanation of the Working Principle of the Inverter(2021年)

viyorktech — 2021-11-25T16:29:45+0900

https://www.viyorktech.com/products/inverter.html

With the advancement of modern technology, the appearance of inverters has provided great convenience to everyone's lives. So what is an inverter? How does the inverter work? For friends who are interested in this, let’s come and find out together.

What is an inverter:

The inverter, one of many types of automation technology we own, converts DC power (battery, storage battery) into AC power (usually 220V, 50Hz sine wave). It is composed of the inverter bridge, control logic and filter circuit. It is widely used in air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVD, VCD, computers, TVs, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. In foreign countries, because of the high popularity of automobiles, you can use inverters bought from reliable inverter suppliers to connect batteries to drive electrical appliances and various tools to work when you go out to work or travel.

Working principle of the electric inverter:

Inverter is a DC to AC transformer, and it actually gives a rise to a voltage inversion process compared with the converter. The converter converts the AC voltage of the grid into a stable 12V DC output, and the inverter converts the 12V DC voltage output by the Adapter into high-frequency high-voltage AC; both parts also use a more used Pulse Width Modulation (PWM) technology. Its core part is a PWM integrated controller, Adapter uses UC3842, and inverter uses TL5001 chip. The operating voltage range of TL5001 is 3.6 to 40V, and there is an error amplifier, a regulator, an oscillator, a PWM generator with dead zone control, a low voltage protection circuit and a short circuit protection circuit in it.

Input interface part: The input part has 3 signals, 12V DC input VIN, working enable voltage ENB and Panel current control signal DIM. VIN is provided by the Adapter, and the ENB voltage is provided by the MCU on the main board. Its value is 0 or 3V. When ENB=0, the inverter does not work, and when ENB=3V, the inverter is in normal working state; while the DIM voltage is provided by the main board with a range of 0 to 5V. Different DIM values are fed back to the feedback terminal of the PWM controller. The current provided by the inverter to the load will also be different. The smaller the DIM value, the bigger the current output by the inverter.

Voltage start circuit: When ENB is high, it outputs a high voltage to light the panel's backlight tube.

PWM controller: It has the following functions: internal reference voltage, error amplifier, oscillator and PWM, over-voltage protection, under-voltage protection, short-circuit protection, output transistor.

DC conversion: The voltage conversion circuit is composed of MOS switch tube and energy storage inductor. The input pulse is amplified by the push-pull amplifier and then drives the MOS tube to switch, so that the DC voltage charges and discharges the inductor, and the other end of the inductor can obtain AC voltage.

LC oscillation and output circuit: It can ensure the 1600V voltage required for the lamp to start, and reduce the voltage to 800V after the lamp is started.

Output voltage feedback: When it is working with load, the sampled voltage is fed back to stabilize the voltage output of inverter.

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The Difference of Working Principle Between AC Servo Motor and DC Servo Motor(2021年)

viyorktech — 2021-11-25T16:29:23+0900

https://www.viyorktech.com/products/ac-servo-motor.html

1. Working principle of the AC servo motor:

When the AC servo motor has no control voltage, there is only the pulsating magnetic field generated by the excitation winding in the stator, and the rotor is stationary. When there is a control voltage, a rotating magnetic field is generated in the stator, and the rotor rotates in the direction of the rotating magnetic field. When the load is constant, the speed of the motor changes with the magnitude of the control voltage. When the phase of the control voltage is opposite, the AC servo motor will reverse. Although the working principle of an AC servo motor is similar to that of a split-phase single-phase asynchronous motor, the rotor resistance of the former is much larger than that of the latter. Therefore, the servo motor has three notable characteristics compared with the single-phase asynchronous motor:

(1) Large starting torque

Due to the large rotor resistance, its torque characteristic curve is shown as curve 1 in Figure 3, which is obviously different from the torque characteristic curve 2 of an ordinary asynchronous motor. It can make the critical slip rate S0>1, which not only makes the torque characteristic (mechanical characteristic) closer to linear, but also has a larger starting torque. Therefore, as soon as the stator has a control voltage, the rotor immediately rotates, which has the characteristics of fast starting and high sensitivity.

(2) Wide operating range

(3) No rotation

As long as the control voltage is lost, the servo motor in normal operation will stop running immediately. When the servo motor loses the control voltage, it is in a single-phase operation state. Due to the large rotor resistance, from the two torque characteristics (T1-S1, T2-S2 curve) generated by the two rotating magnetic fields acting in opposite directions in the stator and the rotor, and the combined torque characteristic (TS curve), the output power of the AC servo motor is generally 0.1 to 100W. When the power frequency is 50Hz, the voltage is 36V, 110V, 220, 380V; when the power frequency is 400Hz, the voltage is 20V, 26V, 36V, 115V, etc. The AC servo motor runs smoothly and has low noise. But the control characteristic is non-linear, and because the rotor resistance is large, the loss is large, and the efficiency is low. Therefore, compared with the DC servo motor of the same capacity, the volume is large, and the weight is heavy, so it is only suitable for the small power control system of 0.5 to 100W.

2. The difference between AC servo motor and DC servo motor:

DC servo motors are divided into brush and brushless motors. Brushed motor has advantages of low cost, simple structure, large starting torque, wide speed range, and easy control. Although it needs maintenance, but the maintenance is easy (just change carbon brushes). And it generates electromagnetic interference, and has requirements for the environment. Therefore, it can be used in common industrial and civil occasions that are sensitive to cost. The brushless motor is small in size, light in weight, large in output, fast in response, high in speed, small in inertia, smooth in rotation, and stable in torque. The control is complex, and it is easy to realize intelligence. Its electronic commutation method is flexible, and square wave commutation or sine wave commutation can be achieved. The motor is maintenance-free and highly efficient with a low operating temperature, low electromagnetic radiation, and long life, which can be used in various environments.

AC servo motors are divided into synchronous and asynchronous motors. At present, synchronous motor is generally used in motion control. It has a large power range and can achieve great power. It has large inertia and low maximum rotation speed, and can rapid decrease as the power increases. Therefore, it is suitable for low-speed and smooth running applications.

The rotor inside the servo motor is a permanent magnet. The U/V/W three-phase electricity controlled by the driver forms an electromagnetic field. The rotor rotates under the action of this magnetic field. At the same time, the servo encoder of the motor sends back signal to the servo motor driver. The actuator adjusts the rotation angle of the rotor by comparing the feedback value with the target value. The accuracy of the servo motor is determined by the accuracy of the encoder (number of lines).

With the continuous advancement of industrial automation, the demand for automation software and hardware equipment remains high. Among them, the domestic industrial robot market has been growing steadily, and China has become the world's largest demand market. At the same time, it directly servo drive the market demand for servo systems. At present, AC and DC servo motors with high starting torque, large torque, and low inertia are widely used in industrial robots. Other motors, such as AC servo motors and stepping motors, will also be applied to industrial robots according to diff
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Do You Know the Following Three Control Methods of AC Servo Motor?(2021年)

viyorktech — 2021-11-25T16:29:00+0900

https://www.viyorktech.com/products/ac-servo-motor.html

What is an AC servo motor?

I believe everyone knows that an AC servo motor is mainly composed of a stator and a rotor. When there is no control voltage, there is only a pulsating magnetic field generated by the excitation winding in the stator, and the rotor is stationary. When there is a control voltage, a rotating magnetic field is generated in the stator, and the rotor rotates in the direction of the rotating magnetic field. When the load is constant, the speed of the motor changes with the magnitude of the control voltage. When the phase of the control voltage is opposite, the servo motor will be reversed. Therefore, in the process of using AC servo motor, it is very important to do a good job of control. So what are the three control methods for AC servo motors? If you want to buy industrial automation devices, please contact us.

Three control methods of mitsubishi ac servo motor
There are three methods on how to control this kind of industrial electrical automation.

1. Amplitude and phase control method

Both the amplitude and phase are controlled, and the speed of the servo motor is controlled by changing the amplitude of the control voltage and the phase difference between the control voltage and the excitation voltage. That is, the amplitude and phase of the control voltage UC are changed at the same time.

2. Phase control method

During phase control, the control voltage and excitation voltage are both rated voltages. By changing the phase difference between the control voltage and the excitation voltage, the AC servo motor can be controlled. That is, the amplitude of the control voltage UC is kept unchanged, and only its phase is changed.

3. Amplitude control method

The control voltage and the excitation voltage maintain a phase difference of 90 degrees, and only the amplitude of the control voltage is changed. That is, keep the phase angle of the control voltage UC unchanged, and only change its amplitude.

These three control methods of AC servo motor have different functions. In actual use, we need to choose the appropriate control method according to the actual work requirements of the AC servo motor. The content introduced above is the three control methods of AC servo motor.

What is the Role of the Servo Motor Encoder?(2021年)

viyorktech — 2021-11-25T16:28:38+0900

https://www.viyorktech.com/products/servo-drive.html

The servo motor encoder is a product installed on the servo motor, which is equivalent to a kind of sensor, but many people do not know what its specific function is. Here is an explanation for everyone:

1. What is a servo motor encoder?
As one of our industrial automation products, the servo motor encoder is a sensor installed on the ac servo motor to measure the magnetic pole position and the rotation angle and speed of the servo motor. From the difference of physical media, the servo motor encoder can be divided into photoelectric encoder and magnetoelectric encoder. In addition, the resolver is also regarded as a special servo encoder. Basically, the photoelectric encoder is used in the market. However, as a rising star, the magnetic encoder has the characteristics of reliability, low price, and anti-pollution.

2. What is the role of the servo motor encoder?
The function of the servo motor encoder is to feed back the rotation angle (position) of the servo motor to the servo motor driver. After receiving the feedback signal, the servo drive controls the rotation of the servo motor to form a closed loop control to achieve precise control of the position and speed of the servo motor rotation.

The servo motor encoder can not only feed back the stroke of the servo motor and compare the pulses sent by the PLC, so as to achieve a closed loop system; it can also feed back the speed of the servo motor, the actual position of the rotor, and let the drive identify the specific model of the motor. Perform closed-loop precise control for the CPU. When starting, the CPU needs to know the current position of the rotor, which is also given by the servo motor encoder.

Servo motor encoder is a kind of sensor, which is mainly used to detect the speed, position, angle, distance or count of mechanical movement. In addition to being used in industrial machinery, many motor control servo motors and BLDC servo motors are required to be equipped with the encoder for the motor controller to detect commutation, speed and position, so the application range is quite wide.