Model Number: MD300-C0015G3
Warranty: 18months
Type: AC-DC-AC
Certification: CE ISO9001
Customized: NO
Rated Power: 1.5KW
Nominal Voltage: 380V
power phase number: 3 phase
Overload: 150%- 60s,180%- 3s
Color: Black
Output Frequency: 0-500hz
Protection: IP20
Output waveform: PWM
Control model: V/F,SVC
Application: 3 Phase AC Asynchronism Motor
Shipment: Sea/air
Market: Worldwide
Other service: OEM
Packaging Details: All the product are packaged with single small carton or plywood crate.

3 Phase 380v Variable Frequency Drive 1.5kw Speed Variator

Power range AC 380V (-15%~+30%) 1.5kw
Output Frequency Range0~500Hz
Control ModeV/F Control, Sensorless Vector Control
Starting Torque0.5Hz/150%(SVC), 1Hz/150%(V/F);
Communication portRS-485, which support MODBUS protocol,this is option
VibrationLess than 5.9m/s
Fault Protectionprotect from over current, over voltage, under voltage, over temperature, phase failure, over load etc.

MD300 series frequency inverter detail size and current
Voltage Power
Dimension mm H *W * D Installation size mm H1* W1Hole


Basic functionOver load capabilityG type:150% rated current 60s;180% rated current 3s
P type:120% rated current 60s;150% rated current 3s
Torque boostAuto torque boost function; Manual torque boost 0.1%~30.0%
V/F curveLinear V/F, multi-point V/F and square V/F curve(power of 1.2,1.4,1.6,1.8,2)
V/F separation2 ways: separation and semi-separation
Acc./dec curveStraight line or S curve acceleration and deceleration mode,
Four kinds of acceleration and deceleration time. Acceleration and deceleration time range from 0.0s to 6500.0s
DC brakingDC braking frequency:0.00Hz to maximum frequency. Braking time:0.0s to 36.0s
Brake current value:0%-100%
Jog controlJog frequency range:0.00Hz~50.00Hz;
Jog acceleration/deceleration:0.0s~6500.0s.
Simple PLC It can realize at maximum of 16 segments speed
Basic function Multiple segment speed runningRunning via the built-in PLC or control terminal.
Built-in PIDIt is easy to realize process-controlled closed loop control system.
Auto voltage regulation (AVR)It can keep constant output voltage automatically in the case of change of network voltage.
Over-voltage/current stall controlIt can limit the running voltage/current automatically and prevent frequent over-voltage/current tripping during the running process.
Quick current limitMinimize the over-current fault, protect normal operation of the AC Drive.
Torque limit & control“Excavators” characteristics, automatically limit torque during operation, prevent frequent over-current tripping. Closed loop vector mode can realize the torque control.
Personalized functionInstantaneous stop non-stopWhen instantaneous power off, voltage reduction is compensated through load feedback energy, which could make AC Drive keep running in a short period of time.
Rapid current limitTo avoid AC Drive frequent over-current fault.
Timing controlTiming control function:set time range 0Min~6500.0Min.
RunningCommand sourceOperation panel reference, control terminal reference and serial communication port reference. These channels can be switched in various modes.
Frequency sourceThere are totally 11 types of frequency sources, such as digital reference, analog voltage reference , analog current reference, pulse reference, MS speed, PLC, PID and serial port reference.
Input terminal4 digital input terminals.
2 analog input terminals.
1 supporting 0-10V voltage input or 0~20mA current input terminal.
Output terminal
2 relay output terminals.
2 analog output terminals, supporting 0~10V voltage output or 0~20mA current output.
Keyboard operationKeyboard potentiometerEquipped with keyboard potentiometer or coding potentiometer.
Keyboard operationProtection functionIt can implement power-on motor short-circuit detection, input /output phase loss protection, over current protection, over voltage protection, under voltage protection, overheating protection and overload protection.
EnvironmentUsing placeIndoor, and be free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt.
AltitudeBelow 1000m
Ambient temperature-10 ℃ to +40 ℃ (Derating use when under ambient temperature of 40 ℃ to 50 ℃)
HumidityLess than 95%RH,without condensing
VibrationLess than 5.9m/s (0.6g)

Packaging & Shipping
Company Information

FAQQ 1: Are you trading company or manufacturer ?A: We are factory.
Q 2: How long is your lead time?A: Generally it is 3-7 days if the goods are in stock. or it is 10-20 days if the goods are not in stock, it is according to quantity.
Q 3: Do you provide samples ? is it free or extra ?A: Yes, we could offer the sample,but we will charge the sample fee and the cost of freight.
Q 4: What is your terms of payment ?A:We accept T/T, L/C and CASH.

Q 5: What is the standard of package?
A. Export standard package or special package according to customer requirement.

Q 6. Is there any discount ?
A. The discount will depend on the quanlity you purchase.

Q 7. What is your supply capacity?
A. The daily output of the factory exceeds 2000 PCS.

Q 8.Do you provide warranty for the goods?
A. Yes, we provide 18 months of warranty for all the goods from us.

Q 9.Could M-driver provide technical support?
A.We’ have more than 15years experience in this field. If there’s any problem, please feel free to contact us, we’ll provide suggestion from our engineer to help you solve the problem.

What Is a Speed Variator?

A Speed Variator is a device that controls the speed of a machine by using an electromagnet and an electric switch. The electromagnet is composed of two coils and acts differentially on a movable member. A speed variator is often used with an electric motor. To determine the desired speed, a machine can use an electric motor or a speed variator.

Variable multiplier

Variable multipliers are used to improve the speed of multiplication algorithms. This is done by examining two bits of data in each cycle. Freeman (1967) developed a mathematical model to determine the gain in speed of a multiplier based on two design parameters, the maximum number of shifts per cycle and the maximum number of available multiples of the multiplicand. The higher the maximum number of shifts per cycle, the greater the speed gain.
A variable multiplier is also called a radix multiplier. It reduces the length of the product and makes it more efficient. It also produces less partial products. A radix multiplier can also be made more efficient by increasing the coding of the radix. However, a radix multiplier requires more complicated coding to produce the desired results.
The radix-r coded multiplier is an improved design for speed variable systems. This type of multiplier has a smaller amount of parts and lower power consumption. It also minimizes error due to its n-bit estimation and new variable error compensation techniques. By minimizing error, this variable multiplier reduces the number of steps in the computation of a variable.

Variable multiplier arrangement

Variable multiplier coding is a technique for reducing the number of partial products generated by a multiplier. This technique allows for the radix–8 number to be expressed as a fraction instead of a whole number. This method can provide superior results to radix–4 or radix-3 coding. In addition, variable radix multiplier coding can simplify the hardware realization process.
Variable multiplier circuit 30 can be configured to have a binary sequence of gain factors K1=1, K2=2, K3=4, K4=8, K5=16, etc., and can be configured to vary the capacitance of the multiplier between CREF and 15CREF in equal steps.
In addition to fast multiplication, variable radix multiplier coding also enables reducing partial products. This technique is also useful for solving sequential problems. Its flexibility allows it to handle large volumes of data in a short amount of time. This method is based on a novel concept of concurrent partial products.
In this study, we introduce a truncated multiplier, which has a small relative error of 2.03%. This method is faster than the precise multiplier. The proposed method achieves this by reducing the number of parts and applying new variable error compensation techniques. Detailed comparison results are shown in Section 7.
Variable multiplier arrangement for speed variable comes with its share of drawbacks. Its main disadvantage is that it requires a large amount of computational resources. It is not recommended for real-world use. Fortunately, it is possible to simulate the multiplier arrangement and optimize its functionality to improve the performance of the motor.
China 3 Phase 380v Variable Frequency Drive 1.5kw Speed Variator     speed variator en francaisChina 3 Phase 380v Variable Frequency Drive 1.5kw Speed Variator     speed variator en francais
editor by czh2023-02-09