DC governor is a motor speed governing device, including motor DC governor, pulse width DC governor, thyristor DC governor, etc. It is generally a modular DC motor governor, which integrates power supply, The drive circuit is integrated into a three-dimensional structure layout, the control circuit uses micro-power consumption components, and the photoelectric coupler is used to realize the isolation and transformation of current and voltage. The proportional constant, integral constant and differential constant of the circuit are adjusted with a PID adapter. It has the characteristics of small size and light weight. It can be used alone or directly installed on the DC motor to form an integrated DC speed regulating motor. It can have all the functions that the governor should have.
The following is the product model and its introduction：
6RA8031-6DV62-0AA0, 6RA7025-6DV62-0, 6RA8091-6DS22-0AA0, 6RA8025-6DS22-0AA0, 6RA8028-6DS22-0AA0 6RA8031-6DS22-0AA0 ,6RA8075-6DS22-0AA0, 6RA8078-6DS22-0AA0, 6RA8081-6DS22-0AA0, 6RA8085-6DS22-0AA0, 6RA8087-6DS22-0AA0, 6RA8093-4DS22-0AA0, 6RA8095-4DS22-0AA0, 6RA8098-4DS22-0AA0, 6RA7075-6DV62-0, 6RA2477-6DS22-0, 6RA7081-6DV62-0-Z, 6RA8025-6DS22-0AA0, 6RA8028-6DS22-0AA0, 6RA8031-6DS22-0AA0, 6RA8075-6DS22-0AA0, 6RA8078-6DS22-0AA0, 6RA8081-6DS22-0AA0, 6RA8085-6DS22-0AA0, 6RA8087-6DS22-0AA0, 6RA8091-6DS22-0AA0, 6RA8093-6DS22-0AA0, 6RA8095-6DS22-0AA0, 6RA8098-6DS22-0AA0, RA7025-6DS22-0 60A, 6RA7028-6DS22-0 90A, 6RA7031-6DS22-0 125A, 6RA7075-6DS22-0 210A, 6RA7078-6DS22-0 280A, 6RA7081-6DS22-0 400A, 6RA7085-6DS22-0 600A, 6RA7087-6DS22-0 850A, 6RA7091-6DS22-0 1200A, 6RA7093-4DS22-0 1600A, 6RA7095-4DS22-0 2000A, 6RA7025-6GS22-0 60A, 6RA7031-6GS22-0 125A, 6RA7075-6GS22-0 210A, 6RA7081-6GS22-0 400A, 6RA7085-6GS22-0 600A, 6RA7087-6GS22-0 800A, 6RA7090-6GS22-0 1000A, 6RA7093-4GS22-0 1600A, 6RA7095-4GS22-0 2000A, 6RA7095-4GS22-5 2000A, 6RA7095-4GS22-6 2000A, 6RA7097-4GS22-0 2600A, 6RA7097-4GS22-6 2600A, 6RA7086-6KS22-0 720A, 6RA7088-6KS22-0 950A, 6RA7093-4KS22-0 1500A, 6RA7095-4KS22-0 2000A, 6RA7095-4KS22-5 2000A, 6RA7095-4KS22-6 2000A, 6RA7097-4KS22-0 2600A, 6RA7095-4KS22-6 2600A, 6RA7088-6LS22-0 900A, 6RA7093-4LS22-0 1500A, 6RA7095-4LS22-0 1900A, 6RA7013-6DV62-0 15A, 6RA7018-6DV62-0 30A, 6RA7025-6DV62-0 60A, 6RA7028-6DV62-0 90A, 6RA7031-6DV62-0 125A, 6RA7075-6DV62-0 210A, 6RA7078-6DV62-0 280A, 6RA7081-6DV62-0 400A, 1P6RA7085-6DV62-0 600A, 6RA7087-6DV62-0 850A, 6RA7091-6DV62-0 1200A, 6RA7093-4DV62-0 1600A, 6RA7095-4DV62-0 2000A, 6RA7098-4DV62-0 3000A, 6RA7025-6GV62-0 60A, 6RA7031-6GV62-0 125A, 6RA7075-6GV62-0 210A, 6RA7081-6GV62-0 400A, 6RA7085-6GV62-0 600A, 6RA7087-6GV62-0 850A, 6RA7090-6GV62-0 1100A, 6RA7093-4GV62-0 1600A, 6RA7095-4GV62-0 2000A, 6RA7096-4GV62-0 2200A, 6RA7097-4GV62-0 2800A, 6RA7086-6KV62-0 760A, 6RA7090-6KV62-0 1000A, 6RA7093-4KV62-0 1500A, 6RA7095-4KV62-0 2000A, 6RA7097-4KV62-0 2600A, 6RA7088-6LV62-0 950A, 6RA7093-4LV62-0 1500A, 6RA7095-4LV62-0 1900A
The 6ra28 all-digital DC speed regulator is an alternative to the 6ra23 type DC speed regulator, and its performance is exactly the same as that of the 6ra23. This product has a compact structure, strong adaptability, and easy maintenance. The design DC current range is 30a ~ 600a. According to different applications, single-quadrant or four-quadrant devices can be selected. All control, adjustment, monitoring and additional functions are realized by the microprocessor, and then select the given value and feedback value as digital or analog.
The 6ra28 simoreg k rectifier is a compact rectifier with full digital control for DC speed regulation. It is connected to a three-phase power supply to provide armature and excitation power for a direct transmission. The rated output current is 30a to 600a. The rectifier can be used as a single unit according to the application Quadrant operation, or four-quadrant operation
6ra70 series rectifiers are all-digital compact rectifiers, input three-phase power supply, can supply armature and excitation for variable speed DC drive, rated armature current from 15a-3000a. Compact rectifier can be used in parallel, providing current up to 12000a , Excitation circuit can provide a large 85a electric current.
Siemens DC speed regulation, Siemens 6RA80 DC speed regulation, Siemens agent, Siemens 6RA80 DC speed regulation is a new generation of DC speed regulator produced by Siemens. The name SINAMICS DC MASTER is abbreviated as: SINAMICS DCM-embodies the power of a new generation of products. It combines the advantages of the previous generation of SIMOREG DC-MASTER with the advantages of the SINAMICS series. Siemens DC speed regulation, Siemens 6RA80 DC speed regulation, Siemens agent
SINAMICS DC MASTER is right in terms of quality, reliability and functionality. In fact, in terms of functions, it provides new functions and integrates the useful functions of previous generation products.
SINAMICS DC MASTER is a new member of the SINAMICS series. It uses many SINAMICS tools and components known for AC technology to DC technology.
SINAMICS DC MASTER is a new member of the SINAMICS series. It uses many SINAMICS tools and components known for AC technology to DC technology. For standard closed-loop control, the DC governor is equipped with a standard governor control device (standard CUD). For applications that require higher computing performance and interfaces, the system can be expanded by adding a governor control unit (CUD).
The DC governor belongs to the SINAMICS DC MASTER series. It combines open-loop and closed-loop control and power supply units into one device, and is distinguished by its compact mechanism and space-saving design.
AOP30 operator interface and BOP20 digital operator panel can be provided for trial operation and local operator control.
The number of CUD interfaces and digital inputs / outputs can be increased using additional modules-for example TM15 and TM31 terminal modules.
Power range: 6.3 to 2508kW
Rated DC current: 15 to 3000 A
Rated power supply voltage: 3-ph.400-950 V AC
Rated DC excitation current: 3 to 40 A (optional: 85 A)
Rated frequency: 45-65 Hz
Protection level: IP00
Storage and transportation temperature: -40-+70 ° C
Complies with standards: IEC, EN, DIN, VDE, UL, cULus, NEMA, UL 508 C, GOST
Operation: 2 quadrants and 4 quadrants
Features
Standard PROFIBUS, optional PROFINET
Derived version of the control device
Excitation power supply meets site requirements
24 V DC electronic device power supply
The power supply unit is insulated from the corresponding ground
Free function blocks are integrated in the standard version and drive control chart
SINAMICS components can be used to extend functions
Can be connected to single-phase line power supply
Coated modules and nickel-plated copper busbars
Wide operating temperature range
Customer benefits
Due to the richness of the SINAMICS DC MASTER series, training time and cost are reduced, and the same number of components is achieved. The seamlessly integrated SINAMICS DC MASTER series devices come in a variety of current and voltage specifications. This series of speed governor is designed to connect three-phase line power supply.
Flexible expansion capabilities in terms of function and performance. The product is rich, and there are many options to make the DC governor meet the needs of customers-whether technically or economically. Various user requirements related to computing performance and speed can be accurately met by selecting a standard CUD or CUD—these two CUDs can also be used in combination.
The ability to replace components quickly and easily increases the availability of the plant and system. The design of the interchangeable components allows them to be replaced quickly and easily. Spare parts are available-you can always see what serial number is assigned to the drive unit.
Using the AOP30 operator interface with a graphical LCD and a plain text display, you can easily perform trial operation and parameterization, or get menu prompts, and you can also use the STARTER trial operation tool to obtain PC support.
Using standard PROFIBUS communication interfaces and various analog and digital interfaces, they can be easily integrated into automatic solutions.
typical application
Mobile: conveyor belts, elevators, cranes, ropeways, test benches, horizontal cutters, roll changers, sheave seeders
Processing: extruder, winding machine / winding machine, leading / following drive, calender, mechanical press, printing machine, rolling mill drive
The 6ra28 all-digital DC speed regulator is an alternative to the 6ra23 type DC speed regulator, and its performance is exactly the same as that of the 6ra23. This product has a compact structure, strong adaptability, and easy maintenance. The design DC current range is 30a ~ 600a. According to different applications, single-quadrant or four-quadrant devices can be selected. All control, adjustment, monitoring and additional functions are realized by the microprocessor, and then select the given value and feedback value as digital or analog.
The 6ra28 simoreg k rectifier is a compact rectifier with full digital control for DC speed regulation. It is connected to a three-phase power supply to provide armature and excitation power for direct-variable transmission. The rated output current is 30a to 600a. Quadrant operation, or four-quadrant operation
6ra70 series rectifiers are all digital compact rectifiers, input three-phase power supply, can supply armature and excitation for variable speed DC drive, rated armature current from 15a-3000a. Compact rectifier can be used in parallel, providing up to 12000a , Excitation circuit can provide a large 85a electric current.
Cost-effective in DC
DC technology also plays an important role in the world of drives today. Whether in industry, power plants or smart grid applications: Wherever reliability and longevity are decisive factors, drive and exciter systems in SINAMICS DC converter reliably perform their service. The DC converter offer you maximum performance and integrated intelligence as well as maximum availability. They are also the ideal partner for our DC motors. As part of a team, they ensure maximum reliability, ease of operation and operating performance.
The scalable DC drive: compact, flexible, ready for connection
SINAMICS DC Master is the scalable DC drive system for simple and demanding applications, flexibly expandable from standard to the high performance solution. Many years of experience concentrated know-how and consistent development guarantee highly reliable state-of-the-art solutions. With the two different device versions, the SINAMICS DCM can be optimally integrated into any plant.
DC Power converters – SINAMICS DCP
Innovative DC-DC converter
Siemens combines its expertise in DC technology with the advantages of the proven SINAMICS family. Thus it sets standards when it comes to quality, reliability and technical functionality.
The SINAMICS DCP is suitable for industrial applications as well as multi-generator applications in the field of renewable energies. As a bidirectional step-up and step-down controller with scalable performance, it combines several functions in a single device. This allows current to flow in both directions at variable voltage levels. This makes the SINAMICS DCP ideal for charging and discharging batteries or super capacicators. The high internal switching frequency enables a compact design and low weight. This allows it to be installed in the cabinet in a very space-saving manner. Thanks to its very high efficiency, the SINAMICS DCP also maximises the feed-in power to the grid for power generation solutions.
Basic introduction:
The DC governor is a device to adjust the speed of the DC motor. Because the DC motor has the characteristics of low speed and high torque, it cannot be replaced by the AC motor. Therefore, the device that regulates the speed of the DC motor, the DC governor, has a broad application.
Applications:
DC governor is required in the following occasions:
1. Need a wider speed adjustment range;
2. Need a faster dynamic response process;
3. Excessive process of automatic smoothing during acceleration and deceleration;
4. High torque is required when running at low speed;
5. Need better shovel characteristics, can automatically limit the overload current to the set current.
The above five points are also the application characteristics of DC governor.
Application range:
CNC machine tools, papermaking printing, textile printing and dyeing, optical cable equipment, packaging machinery, electrical machinery, food processing machinery, rubber machinery, biological equipment, printed circuit board equipment, experimental equipment, welding and cutting, light industry machinery, logistics transportation equipment, Locomotive, medical equipment, communication equipment, radar equipment, satellite ground receiving system, etc.
1. First of all, Siemens DC governor is a motor speed governing device, including motor DC governor, pulse width DC governor, thyristor DC governor, etc. Generally, it is a modular DC motor governor. Power supply, control and drive circuit in one. It has the characteristics of small size and light weight. It can be used alone or directly installed on the DC motor to form an integrated DC speed regulating motor. It can have all the functions that the governor should have.
2. Working principle
A DC governor is a device that regulates the speed of a DC motor. The upper end is connected to the AC power supply, the lower end is connected to the DC motor, the DC governor converts the AC power into two output DC power supplies, one input to the DC motor excitation (stator), and one input to the DC motor armature (rotor), DC governor The speed of the DC motor is adjusted by controlling the DC voltage of the armature. At the same time, the DC motor gives a feedback current to the governor. The governor judges the speed of the DC motor based on the feedback current, and if necessary, corrects the armature voltage output to adjust the speed of the motor again.
DC governor is required in the following occasions:
1. A wide range of speed regulation is required;
2. A faster dynamic response process is required;
3. The process of automatic smoothing is required during acceleration and deceleration;
4. High torque when low speed operation is required;
5. Need better shovel characteristics, can automatically limit the overload current to the set current.
The above five points are also the application characteristics of DC governor.
The constant power area and constant torque area of the load have a great influence on the choice of transmission scheme. When the motor is in constant flux control, the maximum allowable output torque is unchanged, which belongs to constant torque speed control; while in field weakening, the maximum allowable output torque is inversely proportional to the speed and belongs to constant power speed control. If the range of constant torque and constant power speed regulation of the motor is consistent with the range of constant torque and constant power of the load, it is the so-called "matching" situation. The capacity of the motor and the inverter are the smallest. Siemens SIEMENS6RA70 DC governor maintenance mentioned that large-scale coal machine, open-pit mining equipment, washing equipment and coal chemical equipment key components and control should be localized, and gradually achieve high-end equipment, from the perspective of the industry chain The robot body (unit) is the basis of the development of the robot industry
The maintenance methods of the DC governor are as follows:
1. Check the armature carbon brush, the length of the carbon brush, the contact surface and the elasticity are all suitable;
2. Check the reversing ring, the surface should be flat, no dents, no damage, the groove is not short-circuited by toner;
3. Check that there is no problem with the speed measurement feedback component and the coupling of the motor non-load measurement.
4. Check whether there is a problem with the motor gearbox, oil leakage, poor lubrication, and wear of the transmission mechanism, which may cause unstable load and frequent adjustment of the governor.
If it is an analog speed control system, it will be more difficult for general electrical maintenance personnel, but still have to follow the steps below:
1. Measure whether the excitation provided by the governor to the motor meets the requirements of the motor and is stable. Generally, it should be constant to ensure the stability of the magnetic field, which is an advantageous condition for constant speed;
2. Measure the armature voltage to determine its variation range; (for a given, generally a larger setting of about 40%)
3. Measure the feedback voltage of the tachogenerator under the above conditions;
4. Measure the current of the motor under the above conditions;
5. Artificially increase the motor load to observe the motor speed change. If the load increases and the speed changes significantly, IMAX should be increased; if there is no significant change, go to the next step;
6. Adjust the feedback gain (increase or decrease to see if there is any change). If there is no change, return to the position before adjustment and enter the next step;
7. Adjust the speed loop proportional gain and integral capacitor to stabilize the speed;
8. Re-set the current loop parameters;
9. Test drive in all setting ranges and make fine adjustments in order to keep the speed stable in all speed sections and under any load changes;
10. Production test run to confirm that the process requirements are met. Comply with the requirements to complete the maintenance, if not, adjust the parameters as needed.
There are many steps to debug the DC 100 motor, not only Siemens, this can be said to be the industry standard.
When the inspection of motors, cables, etc. is completed and the controller is debugged, it is generally divided into a current loop and a speed loop. The current loop is an open loop control and is the basis of degree control. Only when the current loop is normal can the debugging of the speed loop be started. The speed loop simply means that the speed feedback of the motor is connected to the controller through the encoder to form a closed loop control, which improves the accuracy and stability. If the current loop is not used by the encoder, the motor can be controlled, but the speed given by the controller is calculated by theory.
In addition, don't over-commission the debugging process, simply think that the motor's rated data is entered into the controller. The motor has individual differences, and the parameters such as return resistance, reactance, and magnetization curve are different. Moreover, the motor does not reach the highest speed immediately after running. First, it reaches a certain speed (20%) with no load, and optimizes the parameters. After the operation with negative load, it is necessary to redo the optimization (the mechanical characteristics are different after loading). Hope it helps you.
