Inverter Drives Dorna

Dorna Dlb1 High Performance AC Drive 5.5kw

Approx Price: Rs 10,000 / Unit 
Product features:
  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation
  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation

 

Specifications:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-0037T4G
  • Output Type: Triple
  • Size: 540 mmx270 mmx267 mm
  • Input Voltage: 380 V, 3 PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 75 A


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Additional Information:
  • Item Code: DLB1-05D5T4G

Dorna DLB1 High Performance VFD 22KW

Approx Price: Rs 9,000 / Unit 

Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation


Specifications:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-0022T4G
  • Output Type: Triple
  • Size: 450 mmx260 mmx222 mm
  • Input Voltage: 380V, 3PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 45 A

Applications:
  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Additional Information:
  • Item Code: DLB1-0022T4G

AC Vector Controlled Variable Frequency Drive

Approx Price: Rs 5,000 / Unit 
We are sole suppliers of Dorna Vector Controlled AC Drives which are highly acclaimed for its durability, simple configuration and easy installation features.

Basic functions:
  • Control system: Performance and function highly integrated Current Vector General Purpose Inverter.
  • Drive performance: Induction motor and Synchronous motor.
  • Maximum frequency: Vector control: 0~300Hz; V/F control: 0~3200Hz.
  • Wave-carrier frequency: 0.5kHz~16kHz; Depending on load, can automatically adjust wave-carrier frequency.
  • Input frequency resolution: digital setting: 0.01Hz; analog setting: maximum frequency×0.025%.
  • Control mode: Open vector control(SVC); Closed loop vector control(FVC); V/F control.

 

Specifications:

  • Starting torque: G type: 0.5 Hz/150%(SVC), 0 Hz/180%(FVC). P type: 0.5 Hz/100%
  • Speed range: 1: 100(SVC),1: 1000(FVC) Speed stability accuracy:±0.5%(SVC), ±0.02%(FVC) Torque control accuracy: ±5%(FVC)
  • Overload capacity: G type: 150%rated current60s, 180%rated current3s, P type: 120%rated current60s, 150%rated current3s
  • Torque boost: Automatic or manual 0.1%~30.0%,
  • V/F curve: Straight-line V/F curve, Multi-point V/F curve, N-power V/F curve (1.2-power, 1.4-power, 1.6-power, 1.8-power, 2-power square)
  • V/F separation: Two types: complete separation; half separation. AVR output.
  • Ramp mode: Straight-line ramp, S-curve ramp Four groups of acceleration/deceleration time with the range of 0.0–6500.0s
  • DC braking: DC braking frequency: 0.00 Hz to maximum frequency,Braking time: 0.0–36.0,Braking action current value: 0.0%–100.0%
  • JOG control: JOG frequency range: 0.00–50.00 Hz, JOG acceleration/deceleration time: 0.0–6500.0s
  • Easy PLC, multiple speeds: Up to 16 speeds via the simple PLC function or combination of DI terminal states
  • Onboard PID: Process-controlled closed loop control system
  • Auto voltage regulation (AVR): Keep constant output voltage automatically when grid voltage fluctuates.
  • Overvoltage/ Overcurrent stall control:The current and voltage are limited automatically during the running process so as to avoid frequent tripping due to overvoltage/overcurrent.
  • Fast current limit function: Protect inverter from overcurrent malfunctions.
  • Torque limit andcontrol: It can limit the torque automatically and prevent frequent over current tripping during the running process. Torque control can be implemented in the FVC mode.

Special Function:

  • Power dip ride through: The load feedback energy compensates the voltage reduction so that the Invertercan continue to run for a short time.
  • Timing control: Time range: 0.0–6500.0 minutes
  • Two-motor switchover:Two motors can be switched over via two groups of motor parameters.
  • Fieldbus:Supports RS485, Profibus-DP, CANlink, CANopen (need extention cards)
  • Background software:Change inverter parameter & vitual oscillograph to monitor inverter status.


Operations:

  • Command source:Operation panel,Control terminals,Serial communication port, You can perform switchover between these sources in various ways.
  • Frequency source:11 frequency sources, such as digital setting, analog voltage setting, analog current setting, pulse setting and serial communication port setting. You can perform switchover between these sources in various ways.
  • Auxiliarym frequency source: 11 auxiliary frequency sources.It can implement fine tuning of auxiliary frequency and frequency synthesis.

Additional Information:
  • Item Code: DLB1-0D40S2G

Variable Frequency Drive

Approx Price: Rs 5,000 / Unit 

We are sole suppliers of Dorna Vector Controlled AC Drives which are highly acclaimed for its durability, simple configuration and easy installation features.


Features:

  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation

Specifications:
  • Model: DLB1-0D75S2G
  • Rated Output Power (kW) :0.75
  • Rated Input Current (A) :8.3
  • Rated Output Current (A) :4
  • Single Phase input: AC 220V, 50/60Hz

Additional Information:
  • Item Code: DLB1-0D75S2G

VFD Variable Frequency Drive

Approx Price: Rs 5,000 / Unit 
We are sole suppliers of Dorna Vector Controlled AC Drives which are highly acclaimed for its durability, simple configuration and easy installation features.

Features:

  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation

 

Specifications:
  • Model: DLB1-01D5S2G
  • Rated Output Power (kW): 1.5
  • Rated Input Current (A): 14.1
  • Rated Output Current (A): 7
  • Single Phase input: AC 220 V, 50/60 Hz

Additional Information:
  • Item Code: DLB1-01D5S2G

Dlb1 Series AC Inverter Drives

Approx Price: Rs 15,000 / Unit 
We are sole suppliers of Dorna Vector Controlled AC Drives which are highly acclaimed for its durability, simple configuration and easy installation features.

Features:

  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation

Specifications:
  • Model: DLB1-02D2S2G
  • Rated Output Power (kW): 2.2
  • Rated Input Current (A): 24.2
  • Rated Output Current (A): 10
  • Single Phase input: AC 220 V, 50/60 Hz

Additional Information:
  • Item Code: DLB1-02D2S2G

11 kw High Performance AC Drive

Approx Price: Rs 9,000 / Unit 
Product features:
  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation

Specifications:
  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-0011T4G
  • Output Type: Triple
  • Size: 350 mmx202 mmx202 mm
  • Input Voltage: 380 V, 3 PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 25 A


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Additional Information:
  • Item Code: DLB1-0011T4G

Dorna DLB1 High Performance AC Drive 30kw

Approx Price: Rs 5,000 / Unit 
Product features:
  • Control modes: V/F control, sensorless vector control (SVC), closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: Automatic voltage regulation

 

Product Series:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-0030T4G
  • Output Type: Triple
  • Size: 450 mmx260 mmx222 mm
  • Input Voltage: 380 V, 3 PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 60 A


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Additional Information:
  • Item Code: DLB1-0030T4G

Variable Frequency Drive 37KW Dorna DLB1

Approx Price: Rs 5,000 / Unit 
Product features:
  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation


Specifications:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-0037T4G
  • Output Type: Triple
  • Size: 540 mmx270 mmx267 mm
  • Input Voltage: 380 V, 3 PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 75 A


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Additional Information:
  • Item Code: DLB1-0037T4G

55KW High Performance Inverter Drive

Approx Price: Rs 9,000 / Unit 

Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation


Specifications:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-0055T4G
  • Output Type: Triple
  • Size: 560 mmx280 mmx282 mm
  • Input Voltage: 380V, 3PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 110 A


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Additional Information:
  • Item Code: DLB1-0055T4G

VFD 15KW Variable Frequency Drives

Approx Price: Rs 5,000 / Unit 

The first phase of production base covers an area of more than 50 acres, with production, research & development and sales departments. The registered capital of the Company is RMB 50 million. With more than 300 employees, the Company now has a highly-educated top-caliber management and R&D team. We are an innovative high technology enterprise with independent intellectual property rights and we are specialized in the research & development, production, sales and service of inverter, servo motor, servo driver, CNC devices, electrical pitch control system of wind turbine generator and various types of automatic equipment. We value technological innovation and have been granted with a dozen of national patents. Our core technological product - DLB1 Series Inverter - is now leading the industry in domestic market, characterized in excellent performance and high reliability, widely used for CNC machine tools, textile & knitwear machineries, packaging, printing, food-making and pharmaceutical equipment, carving machinery, spring machinery, plastic machinery, papermaking and metallurgy, mechanical arm, robot and other CNC manufacturing, teaching apparatus & experimental devices, as well as industrial mechanical automation and other relevant fields.

 

Product features:

  • Control modes: V/F control, sensorless vector control (SVC), closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: Automatic voltage regulation


Specifications:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-0015T4G
  • Output Type: Triple
  • Size: 350 mmx202 mmx184 mm
  • Input Voltage: 380 V, 3P H
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 32 A


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Additional Information:
  • Item Code: DLB1-0015T4G

AC Drive 18.5KW

Approx Price: Rs 9,000 / Unit 

The first phase of production base covers an area of more than 50 acres, with production, research & development and sales departments. The registered capital of the Company is RMB 50 million. With more than 300 employees, the Company now has a highly-educated top-caliber management and R&D team. We are an innovative high technology enterprise with independent intellectual property rights and we are specialized in the research & development, production, sales and service of inverter, servo motor, servo driver, CNC devices, electrical pitch control system of wind turbine generator and various types of automatic equipment. We value technological innovation and have been granted with a dozen of national patents. Our core technological product - DLB1 Series Inverter - is now leading the industry in domestic market, characterized in excellent performance and high reliability, widely used for CNC machine tools, textile & knitwear machineries, packaging, printing, food-making and pharmaceutical equipment, carving machinery, spring machinery, plastic machinery, papermaking and metallurgy, mechanical arm, robot and other CNC manufacturing, teaching apparatus & experimental devices, as well as industrial mechanical automation and other relevant fields.


Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation


Specifications:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-18D5T4G
  • Output Type: Triple
  • Size: 375 mmx226 mmx184 mm
  • Input Voltage: 380 V, 3 PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 38 A

Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

VFD 7.5KW Variable Frequency Drives

Approx Price: Rs 5,000 / Unit 
We value technological innovation and have been granted with a dozen of national patents. Our core technological product - DLB1 Series Inverter - is now leading the industry in domestic market, characterized in excellent performance and high reliability, widely used for CNC machine tools, textile & knitwear machineries, packaging, printing, food-making and pharmaceutical equipment, carving machinery, spring machinery, plastic machinery, papermaking and metallurgy, mechanical arm, robot and other CNC manufacturing, teaching apparatus & experimental devices, as well as industrial mechanical automation and other relevant fields.

 

Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation


Specifications:

  • Place of Origin: China (Mainland)
  • Brand Name: DORNA
  • Model Number: DLB1-07D5T4G
  • Output Type: Triple
  • Size: 245 mmx155 mmx172 mm
  • Input Voltage: 380 V, 3 PH
  • Output Frequency: 0~300 Hz, 0~3200 Hz
  • Output Current: 16 A


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines


Additional Information:
  • Item Code: DLB1-07D5T4G

VFD 04 KW to 93 KW

Approx Price: Rs 9,000 / Unit 

Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation
  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation


Specifications:

  • Switch Mode: PWM Control
  • Voltage of Power Supply: Low Voltage Variable-Frequency Drive
  • Nature of DC Power: Voltage Variable-Frequency Drive


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Variable Frequency Drive Systems for Hydraulic Elevator

Approx Price: Rs 9,000 / Unit 
We are sole suppliers of Dorna Vector Controlled AC Drives which are highly acclaimed for its durability, simple configuration, easy installation features and high performance.

Basic functions:
  • Control system: Performance and function highly integrated Current Vector General Purpose Inverter.
  • Drive performance: Induction motor and Synchronous motor.

 

Specifications:

  • Maximum frequency: Vector control: 0~300Hz, V/F control: 0~3200 Hz
  • Wave-carrier frequency: 0.5 kHz~16 kHz, Depending on load, can automatically adjust wave-carrier frequency.
  • Input frequency resolution: digital setting: 0.01Hz; analog setting: maximum frequency×0.025%.
  • Control mode: Open vector control(SVC); Closed loop vector control(FVC); V/F control.
  • Starting torque: G type: 0.5 Hz/150%(SVC), 0Hz/180%(FVC). P type: 0.5 Hz/100%.
  • Speed range: 1: 100(SVC),1: 1000(FVC) Speed stability accuracy:±0.5%(SVC), ±0.02%(FVC) Torque control accuracy: ±5%(FVC)
  • Overload capacity: G type: 150%rated current60s; 180%rated current3s; P type: 120%rated current60s; 150%rated current3s.
  • Torque boost: Automatic or manual 0.1%~30.0%,
  • V/F curve: Straight-line V/F curve, Multi-point V/F curve, N-power V/F curve (1.2-power, 1.4-power, 1.6-power, 1.8-power, 2-power square)
  • V/F separation: Two types: complete separation; half separation. AVR output.
  • Ramp mode: Straight-line ramp, S-curve ramp Four groups of acceleration/deceleration time with the range of 0.0–6500.0s
  • DC braking: DC braking frequency: 0.00 Hz to maximum frequency,Braking time: 0.0–36.0,Braking action current value: 0.0%–100.0%
  • JOG control: JOG frequency range: 0.00–50.00 Hz, JOG acceleration/deceleration time: 0.0–6500.0s
  • Easy PLC, multiple speeds: Up to 16 speeds via the simple PLC function or combination of DI terminal states
  • Onboard PID: Process-controlled closed loop control system
  • Auto voltage regulation (AVR): Keep constant output voltage automatically when grid voltage fluctuates.
  • Overvoltage/ Overcurrent stall control:The current and voltage are limited automatically during the running process so as to avoid frequent tripping due to overvoltage/overcurrent.
  • Fast current limit function: Protect inverter from overcurrent malfunctions.
  • Torque limit andcontrol: It can limit the torque automatically and prevent frequent over current tripping during the running process. Torque control can be implemented in the FVC mode.

Special Function:

  • Power dip ride through: The load feedback energy compensates the voltage reduction so that the Invertercan continue to run for a short time.
  • Time range: 0.0–6500.0 minutes
  • Two-motor switchover:Two motors can be switched over via two groups of motor parameters.
  • Fieldbus:Supports RS485, Profibus-DP, CANlink, CANopen (need extention cards)
  • Background software:Change inverter parameter & vitual oscillograph to monitor inverter status.


Operations:

  • Command source:Operation panel,Control terminals,Serial communication port, You can perform switchover between these sources in various ways.
  • Frequency source:11 frequency sources, such as digital setting, analog voltage setting, analog current setting, pulse setting and serial communication port setting. You can perform switchover between these sources in various ways.
  • Auxiliarym frequency source: 11 auxiliary frequency sources.It can implement fine tuning of auxiliary frequency and frequency synthesis.

Crane Control Variable Frequency Drive

Approx Price: Rs 5,000 / Unit 
Dorna AC variable frequency inverters may be applied on cranes and hoists for either hoisting or traverse (bridge and trolley) motion. There are two basic types of hoist. The first is the load-brake hoist. This class incorporates a load brake (a self-locking mechanical device that resists downward motion of the load) which requires the motor to apply downward torque to move the load downward. The load will not accelerate downward by gravity alone. The other class of hoist is called “non-load brake” and essentially encompasses all other hoist types. Non-load brake hoists require upward motor torque to suspend the load, and must resist gravity all the way down. This type of hoist will regenerate energy into the inverter when moving the load downward, so an electrical means of removing this energy from the inverter must be provided – namely dynamic braking (DB). All traverse applications are similar to non-load brake hoists, in that they do not incorporate a mechanical load brake. Although gravity does not play a role as it does in hoisting, traverse axes will exhibit a degree of regeneration during deceleration to a stop. We are sole suppliers of Dorna Vector Controlled AC Drives which are highly acclaimed for its durability, simple configuration, easy installation features and high perfromace.

Basic functions:

  • Control system: Performance and function highly integrated Current Vector General Purpose Inverter.
  • Drive performance: Induction motor and Synchronous motor.

 

Specifications:

  • Maximum frequency: Vector control: 0~300 Hz, V/F control: 0~3200 Hz.
  • Wave-carrier frequency: 0.5 kHz~16 kHz, Depending on load, can automatically adjust wave-carrier frequency.
  • Input frequency resolution: digital setting: 0.01 Hz, analog setting: maximum frequency×0.025%.
  • Control mode: Open vector control(SVC); Closed loop vector control(FVC); V/F control.
  • Starting torque: G type: 0.5Hz/150%(SVC); 0Hz/180%(FVC). P type: 0.5Hz/100%.
  • Speed range: 1: 100(SVC),1: 1000(FVC) Speed stability accuracy:±0.5%(SVC), ±0.02%(FVC) Torque control accuracy: ±5%(FVC)
  • Overload capacity: G type: 150%rated current60s; 180%rated current3s; P type: 120%rated current60s; 150%rated current3s.
  • Torque boost: Automatic or manual 0.1%~30.0%,
  • V/F curve: Straight-line V/F curve, Multi-point V/F curve, N-power V/F curve (1.2-power, 1.4-power, 1.6-power, 1.8-power, 2-power square)
  • V/F separation: Two types: complete separation; half separation. AVR output.
  • Ramp mode: Straight-line ramp, S-curve ramp Four groups of acceleration/deceleration time with the range of 0.0–6500.0s
  • DC braking: DC braking frequency: 0.00 Hz to maximum frequency,Braking time: 0.0–36.0,Braking action current value: 0.0%–100.0%
  • JOG control: JOG frequency range: 0.00–50.00 Hz, JOG acceleration/deceleration time: 0.0–6500.0s
  • Easy PLC, multiple speeds: Up to 16 speeds via the simple PLC function or combination of DI terminal states
  • Onboard PID:Process-controlled closed loop control system
  • Auto voltage regulation (AVR): Keep constant output voltage automatically when grid voltage fluctuates.
  • Overvoltage/ Overcurrent stall control:The current and voltage are limited automatically during the running process so as to avoid frequent tripping due to overvoltage/overcurrent.
  • Fast current limit function: Protect inverter from overcurrent malfunctions.
  • Torque limit andcontrol: It can limit the torque automatically and prevent frequent over current tripping during the running process. Torque control can be implemented in the FVC mode.

AC Drive for Textile Machines

Approx Price: Rs 15,000 / Unit 
With the continuous improvement of the technical level of textile machinery mechatronics, AC variable speed has become a trend. Almost without exception applied in most of the new development of textile machinery products in the AC induction motor frequency control devices. Textile mills can not do without air-conditioning equipment. When the air-conditioned motor with variable frequency drive control, reduced power consumption, saves electricity expenditures. According to the data provided by a company, the full year to 12 air-conditioned saving more than 24 million air conditioning electricity unit consumption has dropped by an average of 6,7 percentage points. PLC programmable controller or PC control via variable frequency drive to achieve multi-motor synchronized operation. Production curve control the movement of the agencies, thereby simplifying the institutions. AC variable speed such as roving machine, remove the cone wheel speed change mechanism, thus overcoming the bevel wheel variable speed belt slipping speed allowed. For the spinning frame, peach bottom caused by the use of the variable frequency drive removed the forming mechanism of forming cam pauses, a peach top of the impact of the phenomenon. Good shape of the yarn. In order to under a process of high-speed unwinding. While taking advantage the VVVF control the main motor thirty-nine speed to control the number of revolutions of the spindle, spun medium and small yarn speed changes to reduce yarn breakage rate.

Variable frequency technology:
  • AC motor VFD control textile machinery is mainly divided into two categories. A class is used Y Series AC induction motor. This motor is mainly used in the governor less precision, the little speed range of textile machine. Another dedicated AC variable speed induction motor. Mainly used for the governor high precision, wide speed range machine.

VFD different forms:
  • VFD with open-loop control induction motor drive called the V / F form. In this way the circuit is simple and reliable. Speed range of 10:1 within the scope, speed accuracy is lower by 2% to 5%, and the low-speed performance is not satisfactory. Therefore used for knitting machines, or less demanding textile machinery,.
  • Gozuk EDS2000 sensorless vector VFDs have excellent low-speed characteristics. The circuit structure is simple and high reliability. It has a good acceleration and deceleration characteristics, torque characteristics, and current limiting characteristics. Speed accuracy of up to 0.5% to 1.0%. Speed range 20:1 range. More suited to the governor of the printing and dyeing machinery. On some of the equipment, all electrical components of the VFD and the control panel with the mechanical part of the winding head together as a whole, is to reduce the volume, enhanced reliability.

 

Specifications:

  • Input Frequency: 47~63 Hz
  • Output Frequency: 0~600 Hz
  • Output Current: 2.5-750 A

 

VFD Drives for Irrigation Pumping

Approx Price: Rs 15,000 / Unit 
This is possibly the most common application for a VFD in pumping applications. In a situation where a pump has a fairly constant flow, but a varying head due to the topography of the land we are able to change the pressure of the pump by changing the rotational speed of the pump. In doing this it is possible to unlock considerable energy savings. This system can be used in most of the different irrigation systems from micro/drip to sprinklers and center pivots. In fixed block systems such as micro irrigation, the irrigated area can be divided into different height zones and each zone can have a different pressure requirement at the pump station. For instance, if there are 5 zones requiring from 3, 4, 5, 6 and 7 bar respectively to fulfill the highest duty point, the VFD will then ramp the pump speed up or down at the requirement of the valves as they operate in their respective zones. This can be either manual or automatic. With a centre pivot for instance, if the land is sloping, it too can be cut into sectors which require different pump pressures. These points on the circle of the pivot can be activated by means of limit switches which are activated and deactivated as the pivot traverses its arc. The signals can be relayed either by wires or by using wireless signals sent to the VFD to activate the different set points. The point of the exercise is to strive to create only the energy required at the different duties by the system to work optimally and not to have to waste energy due to using throttling devices. These devices can be pressure reducing valves; flow control valves; orifice plates and similar. It is seldom possible to be exact and practical, so most of the time we cannot discard these devices entirely but rather use them for the "fine tuning". The VFD operates on PID (a proportional–integral–derivative controller is a generic control loop feedback mechanism) using a 4 – 20 milliamp pressure transducer fitted in the discharge line of the pump. This pressure transducer will give feedback on the actual line pressure and the variable frequency drive will compare this to the pressure setting on the VFD as set by the potentiometer (set point).

Specifications:
  • Input Power 380 V: 5.5-220 kW
  • Output Frequency: 5.5-220 kW
  • Input Power: 0.75~160 kW

Variable Frequency Drive

Approx Price: Rs 15,000 / Unit 
Dorna VFD exclusively designed for treadmill improves the weakness of the general treadmill after researching the characteristics of each operation to be a popular VFD. A treadmill is common equipment in the modern family and fitness centers. With the belt system controlled by the motor, people can run or walk passively at different speeds. Besides, users can experience different running environment, such as flat land, uphill or variable speed to reach different training purposes, with the auxiliary electronic equipment on the treadmill. Most DC brush motors are used in the VFD system for the past treadmill to save cost. However, its weaknesses are the high failure ratio of carbon-brush and commutator device, high maintenance cost and inefficient low-speed torque. Thus, most manufactures adopt the AC motor with the variable frequency drive to improve the weaknesses of the DC motor.

The characteristics that Gozuk VFD applied in the treadmill are shown in the following:
  • 1) Wider ranges of the carrier frequency: When using the VFD to control the motor, it will have a high-frequency electromagnetic noise. To have a quiet operation at home or fitness center, it reduces the noise by adjusting the carrier frequency of the VFD. The max. carrier frequency of Gozuk VFD is up to 15kHz for an unobvious noise.
  • Sensorless vector control: A stable motor output at different speeds is necessary for the different physical strength levels of runners. To reach this purpose, Gozuk VFD uses the sensorless vector control, which doesn't need any external speed feedback, for the induction motor runs stably at low speed. The torque can be 150% at 5Hz and the current wave of the motor when using treadmill is shown in the following diagram.
  • Lower level of the momentary low voltage: The new parameter, setting of low voltage level, in Gozuk exclusively designed VFD for treadmill used to set the level detection of low voltage by requirement to decrease the possibility of machine stop resulted from sudden load.

 

Specifications:

  • Input Voltage Range: 1 AC 220 V±15%, 3 AC 220 V±15%, 3 AC 380 V±15%
  • Input Frequency Range: 47-63 Hz
  • Output Voltage Range: 0~rated input voltage

 

VFD for Air-Conditioning System

Approx Price: Rs 5,000 / Unit 
Constant Temperature Control in Air-Conditioning System Global warming is one of the greatest feared disasters in human history, and with its deteriorating effects, it should cause concern to all human beings. Combating global warming by reducing CO2 emission and saving energy are things we can do to help reduce the effects of global warming. Taiwan is located in the sub-tropical zone, therefore, every building is equipped with air-conditioning systems. If we adopt reasonable and intelligent technology, plus the best modern design, we can conserve energy, as well as maintain a comfortable working and living space. As far as general commercial buildings are concerned, the traditional HVAC (heating, ventilating and air-conditioning) system consumes half of the entire electricity charged every month. However, with a highly efficient air-conditioning system, the electricity consumed can be reduced by 47.45%. That is to say, the cooling, heating and ventilation we actually demand would be far less than the energy consumed in the traditional air-conditioning system. In order to offer an efficient and energy-saving HVAC system, Gozuk integrates our advanced AC motor variable frequency drive, programmable logic controller, temperature controller and human machine interface, offering you an air-conditioning system solution that is not only environmental-friendly but also stable in saving energy.
Therefore, the chilled water made in the compressor flows into the fans in each area, and the fans emit cool air. Traditionally the frequency inverter controlled the motor (by changing its rotation speed) in the fan to control the air volume emitted. However, modulating the air volume cannot achieve a constant temperature, and such action can only timely slow down the rotation speed in order to reduce the cooling capability and the waste of the electricity on the motor. Therefore, in order to have constant temperature control, we have to control the chilled water into the control structure to timely modulate the volume of the water. In addition, with PID operation in the temperature controller, the rotation speed of the motor and control of the chilled water enables constant temperature control.

Composition of an air-conditioning system:
  • General air-conditioners in the central air-conditioning system in a building or factory are mechanical and compressive. The entire air-conditioning system is a closed one, filled with a kind of easy-to-vaporize and easy-to-condense substance – refrigerant. The compressive air-conditioning system is composed of a compressor, condenser, expansion valve or refrigerant controller, and evaporator.

The compressive cyclic process is as follows:
  • The compressor takes the low-temperature and low-pressure gas refrigerant from the evaporator, and compresses and heats it up into a high-temperature and high-pressure gas refrigerant before emitting it into the high-pressure pipe.
  • The condenser exchanges heat with and cools down the high-temperature and high-pressure gas refrigerant emitted from the compressor with the external air.
  • The expansion valve turns the high-pressure refrigerant into low-pressure refrigerant.
  • The evaporator allows the refrigerant to absorb heat inside it (turning from liquid into gas) and conducts a heat exchange. The refrigerant conducts heat exchange with the air and produces "cool air".

Specifications:
  • Output Voltage: 0~380V
  • Inverter Type: Three-Phase 380V 75~400 kW AC Drive
  • Output Frequency: 0~650 Hz

VFD for Wire

Approx Price: Rs 15,000 / Unit 
VFD in wire & cable industry In the wire and cable industry, many processes begin with pay-off and end with take-up wire. In the part of pay-off wire, how to control the uneven tension is the urgent difficulty for many equipment design engineers and products control engineers. In the past electric design, the engineers used to adopt the A/D, D/A module of PLC, using PCB with tension control technique, and gain the pay-off speed by read the potential of potentiometer with tension swing bar. In this method to maintain a constant tension, it usually adopts the signal line from potentiometer with the tension swing bar and analog signal line from the D/A module which control the speed of the variable frequency drive (VFD). They are too long, that brings the signal distortion easily. Besides, take-up wheels with different axis diameter corresponds to inner parameters of PID of different PLC, if PID setting is not suitable, the pay-off line is easy to be unstable and the tension is hard to be constant, which will impact the quality of the product. Dorna DLB1 drive is the unique VFD has this feature in domestic currently. Excellent control performance and good reliability also ensures the VFD drives superior performance in the cable industry. The pay-off speed is depend on the take-up speed. Take-up wheel always experiences process of starting and slow-down to stop, which brings the pay-off wheel a non-constant speed. Meantime, wire and cable always change on the wheels. When the rotate speed is stable, the linear velocity is constantly changing. The take-up tension impacts the quality of the product directly. If the tension too large, the wire will be took-up too tightly. Slim wire is easy distorted and the inner filament is easy to be break. If the tension is too small, the take-up wheel will axially slip and dislocate while take-up the wire. The wire can’t be took-up tidily. So pay-off wheel have to adjust the speed of itself according to the balance position of the tension balance bar.

Technological requirement:
  • As the forefront of a variety of equipment, power pay-off wire rack is widely applied in wire and cable industry.

General speaking, the requirements as follows:
  • In wire and cable making industry, all wire after-processing has to be reeled round the plate tidily.
  • In the machinery process of start, stop, and working, the linear velocity of the wire and the take-up winder diameter both are not constant, but the linear velocity of the take-up machine and the linear velocity of the process machine have to be consistent.
  • While pay-off wire, the machine must track the linear velocity of the process machine automatically, and must adjust the rotate speed automatically based on the winder diameter, to keep the same with the process speed..
  • The pay-off speed auto-track the leading speed. The take-up speed auto-track the pay-off speed of the process machine. Auto-rollback while the wire is loose. Auto-stop for protection in breaking.
  • In the pay-off and rolling process, to maintain a constant wire tension.
  • When stable operation at a certain speed, the pendulum of the pay-off frame have to be stable.


Specifications:

  • Main Circuit Type: Voltage
  • Link of Transformation: AC-DC-AC Variable-Frequency Drive
  • Votalge Range: 220 V, 380 V, 440 V, 480 V(-15%~20%)

 

VFD for Pulp

Approx Price: Rs 15,000 / Unit 
VFD in pulp & paper machines Overall. The system is with the control method of PLC combined with VFDs. Each drive point is with buttons for site speed regulation.

Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation
  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque , fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation

 

Specifications:

  • Humidity: 5~95%, no condensing
  • Vibration: 3.5 mm, 2~9 Hz
  • Storage temperature: −40~ +70 ºC

VFD for Oil Industry

Approx Price: Rs 8,000 / Unit 
Dorna VFD for oil industry The petrochemical industry is the basic industry of the national economy development and also the energy-hungry its main production process through various pumps, air compressors. Currently, most of the oil pump, water pump and air compressor at a constant speed motor drive state, as will account for an absolute majority of the non-governor speed motor into operation, its power consumption varies with the load size, you can save a lot of energy, will produce significant energy-saving effect. Modern power electronics technology, the development of AC variable speed AC Motor Variable Speed huge leap in the frequency range, dynamic response and accuracy requirements, and use effects. According to incomplete statistics, the medium-sized petrochemical enterprises, squirrel cage induction motor accounted for 80% of the total capacity of the entire motor to AC variable speed applications in the petrochemical industry, therefore, it provides a broad space for development.

Specifications:
  • Frequency Range: 0.1~400 Hz
  • Main Circuit Type: Current
  • Link of Transformation: AC-DC-AC Variable-Frequency Drive

Mv Variable Frequency Drive for Thermal Power Plant

Approx Price: Rs 5,000 / Unit 
The application of the medium voltage variable frequency drive in the large-sized asynchronous motor is just at the initial stage in India, which, however, has been pretty popular in the developed countries. As the development of the electronic components, types of the medium voltage VFD become very diverse. By the topological structure, the medium voltage VFD can be classified as IGBT module serial-connection type, tri-level type and multiple power unit serial-connection type with voltage superposition. Considering that there will be just a little pressure change, we decided to only reconstruct the 2# water supply pump with the variable frequency drive.

Specifications:
  • Adopt the mode of one VFD to control one pump, and no need to add power frequency bypass system
  • Take 4~20 mA current of the pressure transmitter from the pumping main as the feedback signal, and obtain the given frequency from the DCS system
  • Run signal and stop signal are given by the DCS system
  • The condition signal of the medium voltage VFD is sent from the control cabinet to the DCS system for the purpose of instantaneous detection
  • The pressure value of the pumping main can reach or overrun the requested 6.8MPa after reconstruction
  • Shut down the by-pass valve of each pump, and the appropriate flux can be produced by adjusting the speed of the motor through the medium voltage VFD

Close-loop control:
  • Shut down the by-pass valve of each pump, and realize close-loop control by the VFDs PID function, and the DCS system will provide the given 4~20mA corresponding to 0~10MP. And the press transformer on the pumping main will feed back the 0~10MP press signal to the VFD, and to control output torque by PID, so as to adjust the water flux.

Efficiency:
  • According to the characteristics of the pump, it can be found that the flux varies due to different motor speed. On condition that less water is needed in operation, we can decrease the motor speed through the VFD rather than the valve, thus we can save a lot of electricity.

Conclusion:
  • In recent years, Indian government has been shifting focuses on energy saving and environmental protection, issuing a series of preferential policies to encourage its enterprises to save energy. Indian companies, pretty active to respond to the government's appeal, are endeavoring to enhance their management level on energy use, reduce production cost and strengthen their competitiveness, which indirectly promotes the expansion of the VFD.

VFD for Thermoelectricity Plant

Approx Price: Rs 5,000 / Piece 
A large amount of pumps and fans in the power plants and the boiler industry have been reconstructed with the advanced frequency conversion speed control technology, with distinctive energy saving efficiency, majority of which, however, are low voltage motors with power lower than 315KW. Yet Dorna has successfully reconstructed a high power AC motor (690V, 560KW) in a Shenzhen-located thermoelectricity plant supported on its self-developed parallel connection technology.

Dorna VFD features:
  • Control mode: vector control, V/F control, vector control with PG, V/F control with PG.
  • Owns motor parameter autotuning function, applicable for broad range of load.
  • In the mode of open-loop, can realize rated torque output at low speed, speed control range hits 100:1
  • In the mode of closed-loop, can realize full torque output at zero speed, with speed control range up to 1000:1
  • Energy saving control function enables the VFD run with high efficiency. It can realize automatic operation with PID.
  • Slip compensation function makes the system more stable
  • Built-in automatic torque compensation realizes high starting torque.
  • Torque control function enables the motor be able to run with a constant torque.
  • Friendly user interface, large screen LCD. Can realize parameter online monitoring and online regulation, in addition to parameter copy function, making operation more convenient.
  • Less pollution to the grid.

Main advantages:
  • No need to design the structure respectively
  • Delivery period can be steeply shortened
  • More easy to control the quality
  • High performance but low cost

Prominent features of the parallel connection technology:
  • The common digital operator and control board can guarantee the balance of the system's frequency, phase and limit
  • The common input and output compound reactor can ensure the balance of the output frequency.
  • The common DC bus realizes the parallel of active and reactive power, moving the current un-equalization problem.
  • All the parallel-connected VFD adopt digital control, making equalizing current control and communication more convenient, and realizing complex operation inside the module of the variable frequency drive, so as to enhance reliability of the system
  • ±20% voltage fluctuating width is quite applicable to Chinese grid status
  • The SVPWM technology, in addition to professional wave processing circuit, can reduce 1/3 heat loss and accordingly prolong the using life of the VFD.
  • The photoelectrical isolation technology is adopted in the VFD's control circuit and drive circuit, to realize accurate signal receiving and control. Fault alarm and protection are pretty sensitive and accurate
  • various protection functions: over current, over load, over voltage, undervoltage, phase loss and shortcircuit
  • Flexible control mode: RS-485 control, PI regulating, multi-step speed, procedure control, proportion linkage, programming control terminals and analog signal terminal, several control mode.

Specifications:
  • Input Voltage: Three Phase 380 V, 440 V
  • Output Voltage: Three Phase 0~ Input AC Voltage
  • Carrier Frequency: 1.0~15.0 kHz

VFD for Central Air Conditioning System

Approx Price: Rs 15,000 / Unit 
As the rapid development of India economy and the improvement of Indian people's standard of living, the central air-conditioning system has become popular in the inns, hotels, office buildings, supermarkets, hospitals, factories, etc. The central air-conditioning system mainly consists of refrigeration compressor group, cooling (heat) medium circulating water system, cooling circulating water system, cooling tower fan and coil pipe fan. However, all the central air-conditioning systems currently have a same burning weakness that is it is hard to control their output temperature according to seasons, day and night, and the amount of the people. Although having adopted the valve adjustment mode, yet a mass of energy has been wasted since its motor is always working at full speed. Statistics show that in the office buildings, about 60% energy of the total is consumed by the central air-conditioning system.

P
roduct features:
  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation
  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving

Central air-conditioning system working principle:

  • The central air-conditioning system can be classified as constant torque load and square torque load by the load type.

Cooling water system Closed-loop control:
  • The standard circulating water temperature of the central air-conditioning system is 12???(intake) / 7???(outlet), with allowable temperature difference of 5???. If the temperature difference between the intake and outlet is 2???, it indicates that the actual demand is just 40% of the supply (2???/5???=40%). Thus, if frequency conversion speed control is available at this time, it can adjust the speed of the pump to 40% of its rates speed, which can meet cooling requirements but also can save a lot of energy.

Specifications:

  • Power Range: 5.5~220 kW
  • Output Frequency: 0~400 Hz
  • Multi-Speed: 8 Multifunction Input Terminals

Other Details:
  • Constant torque load: the screw- or centrifugal- refrigeration compressor is of the constant torque load, which always need limit the min. axis output torque, and the relationship between its speed and power approaches linearity.
  • Square torque load: such as cooling (heat) medium circulating water system, cooling circulating water system, cooling tower fan and coil pipe fan, which have no particular requirements to the axis torque, and the axis power is proportional to the cube of the speed.

VFD for Blast Blower

Approx Price: Rs 15,000 / Unit 

Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation
  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation


Specifications:

  • Power Phase: Three-Phase
  • Frequency Output: 0-650 Hz
  • Communication: RS 485


Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

Variable Frequency Drive For Grinding Machine

Approx Price: Rs 15,000 / Piece 
This application is about the tension control principle of variable frequency drive applied to the stainless steel grinding machine. Trial run shows the VFD manufactured by Dorna can achieve as prominent performance and reliability as imported ones of its kind, but price is pretty lower.

Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation
  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation

 

Specifications:

  • Maximum Loading Capacity: 2/3 of The Capacity of Milling Tank
  • Output Granularity: Minimum 0.1 um
  • Rotation Speed: 0.4L:0~600 rounds/Min, 2L:0~580 rounds/Min 4L:0~530r


Other Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

AC Drive for Injection Machine

Approx Price: Rs 5,000 / Unit 

This application is about VFD in variable pump injection machine, and also explains control system and features of the variable pump injection molding machine, and the differences from constant pump injection machine. The plastic processing industry has gone through rapid and stable development in recent years. As the plastic enterprises increase more and more, competition goes scorching and how to reduce production cost and enhance product competitiveness tops all the plastic manufacturers' agenda. The injection molding machine, the main production device in the plastic processing factory, always consumes as much as 70%-80% power of the factory's total. Thus, to reduce the power consumption can help the plastic producers secure a lot of money. However, for the energy saving reconstruction of the variable pump injection machine, even lots of professional energy saving companies find it no way. After several years' research on the variable pump injection machine, Dorna successfully launched the new VFDs which can help the variable pump injection machine save 10%-20% energy. We position ourselves as one of the pioneers in the variable pump injection machine energy saving field in India.


Product features:

  • Control modes: V/F control; sensorless vector control (SVC); closed-loop vector control (FVC)
  • Multiple-type encoder support
  • Multiple-type field-bus protocol: Modbus, Profibus-DP, CANlink, CANopen (order separately)
  • Two-motor control by switching between two groups of parameters
  • Internal PID control & simple PLC function
  • Full protection functions
  • AVR function: automatic voltage regulation
  • Require less maintenance
  • Optimum functionality
  • Best performance
  • Designed for 10 years of operation
  • High torque, fast response, & high accuracy
  • Constant or variable torque applications
  • Low electrical and acoustic noise
  • Energy saving
  • Quick and easy installation


Specifications:

  • Nature of DC Power: Voltage Variable-Frequency Drive
  • Power Phase: Three-Phase
  • Frequency Output: 0-650 Hz

 


Other Applications:

  • Fan & pumps
  • Air compressors
  • Machine tools
  • Centrifugal machines
  • Textile machineries
  • Packaging machines

AC Drive for Blender

Approx Price: Rs 15,000 / Unit 
The blender is widely used in the fields of chemical, pharmacy, food, cement, plastic and so on. However, massive energy is being wasted by the blender as it is always designed with larger capacity but commonly needn’t run at the rated speed. In addition, traditional mechanical speed control mode increases wear and tear risk, and also affects operating condition of the blender.

VFD features:
  • Applicable to large inertia load and potential load, with high accuracy. The DLB1 series VFD can be better suitable to tough localities as its main circuit adopts the positive and negative bus superposition technology, as well as SCR noncontact technology.
  • Four control modes for option: V/F control, V/F control with P/G, vector control, and vector control with PG, which enable the VFD with high starting torque.
  • In the mode of open-loop, can realize rated torque output at low speed, speed control range hits 100:1
  • In the mode of closed-loop, can realize full torque output at zero speed, with speed control range up to 1000:1
  • Advanced motor parameter autotuning function
  • Built-in automatic torque compensation function realizes high starting torque.
  • Built-in slip compensation function realizes high efficiency.
  • Built-in RS-485 communication port, supporting MODBUS communication protocol.
  • Built-in PID regulator
  • Friendly user interface, large screen LCD. Can realize parameter online monitoring and online regulation, in addition to parameter copy function, making operation more convenient.
  • Torque control function enables the motor be able to run with a constant torque
  • Less pollution to the grid

Blender introduce:
  • According to the characteristics of the blender, it is recommended to install a vector control variable frequency drive (How to choose) to realize reasonable and efficient speed control, and add the bypass function, so as to realize switch between the VFD and the mains supply. In addition, the vector control VFD has multi-step speed function, which can be selected and set according to the material characteristics and chemical reaction time. The VFDs also can help realize on line control through its powerful communication function with the industrial control computer and software.

Specifications:
  • Size: as per product
  • Weight: as per product
  • Input Voltage: DC200V-DC750V
  • Output Voltage: 3phase 220v /380v ac
  • Output Power: 0.75 kW-15 kW
  • Output Frequency: 0--400 Hz

Application:

  • Nearly 100 sets of upper 400kW high performance vector control VFDs manufactured by Dorna have been put into use in various industries, including the cement industry, the petrochemical industry, the ceramic industry, heating & ventilation, water supply, etc.

VFD for Fans

Approx Price: Rs 10,000 / Unit 
Benefits of VFDs in Fans & Pumps applications:
  • Most fans and water pumps are selected according to its full loads working status, but in practice they are not working at the full load state in most of the time. So to control flow & air volume of the pumps & fans, it needs a wind deflector, reflux valve or start/stop timer usually, and the large power ac motors are very difficult in start/stop frequently as the electric impact is in a high level, during this time, it's absolutely will cause electric energy wasted and high current impact during start/stop of the ac motor.
  • To solve this kind of problem, the most scientific way is to adopt a variable frequency drive to control the fans and water pumps. When the AC motor operates at 80% of its rated rotation speed, in theory, the power consumption is the cube of 80% of its rated power, i.e. 51.2%. Generally, it can almost save 40% power consumption for the manufacturer when deduct the impact of mechanical loss and ac motor copper and iron loss. Plus, it can improve energy-efficient when the fan & pump adopt closed-loop constant-pressure control which can be achieved easily. Due to the VFD drive can realize soft start and soft stop for the ac motors, it can avoid voltage surge during the motor's start period to decrease the failure rate and increase its service life, and reduce the power system's capacity requirements and reactive power loss.

 

Specifications:

  • Frequency: 0.00~300.00 Hz (high frequency 3000 Hz optional)
  • Humidity: 5~95%,no condensing
  • Vibration: 3.5 mm, 2~9 Hz, 10 m/s2 , 9~200 Hz, 15 m/s2, 200~500 Hz

Variable Speed Drive for Reciprocating Compressors

Approx Price: Rs 9,000 / Unit 
Reciprocating compressors usual have pretty large load torque variations with every cycle, some can be up to 50-60% or the average torque. The machine is busily slamming current in and out in order to keep up with the transient torques. While using flywheels or large rotor inertia to damp out the load dynamics is pretty cool and an art form in and of itself, somewhere along the line, making huge flywheels to damp out the transients seems silly. We had done some work where the mechanical engineer threw his hand up because the flywheel was too big to manufacture. Turns out that the fly wheel design procedure was much too conservative and overdesigned the flywheel. But the point is: why have a huge hunk of steel attached to the shaft all the time. If the motor is being driven by a variable speed drive with sophisticated drive algorithms, i.e. controllers that can track the load torque variations, then both the efficiency and transient stability problems can be solved together. The other significant thing is the starting problem. The transient load torque is also present at starting so the motor has to be able to accelerate through the load transients and be capable of starting when the compressor is sitting at the highest load.

Specifications:
  • Power Source: AC Power
  • Configuration: Stationary
  • Lubrication Style: Lubricated
  • Mute: Not Mute

Application:
  • A common application for an large reciprocating is in the PetroChemical Industry where I sold some in the 20,000 HP range. The synchronous motor can overcome torque pulsations somewhat with a large flywheel. The Synch Motor is the standard for this application even if starting systems may be required.

DBL1 Series Inverter Drive

Approx Price: Rs 5,500 / Piece 
Specifications:
  • DLM1 series mini sized inverters designed for simple applications where space is a key factor
  • Input voltage / output power: Single phase +10% -15% ~ 50/60 Hz, 0.4 KW, 220 VAC ~ 1.5 KW
  • Color: Black
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