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Inverter Leroy Somer

Inverter Leroy Somer
Mã Sản phẩm : UMV 4301
Chuyên mục : Inverter
Nhà sản xuất : Leroy Somer
Hàng sẵn kho : 2  cái
Mô tả:
UMV 4301 Open and closed loop speed controllers for asynchronous and synchronous motors.
Thông số chi tiết :

 Main electrical characteristics

Input power supply

3-phase supply : 200 to 240V ± 10 % (TL)
                                  380V to 480V ± 10 % (T)

Input frequency

48Hz to 62Hz

Phase imbalance at input

≤ 3 %

Output voltage

From 0V to supply voltage

Maximum number of power-ups per hour



Characteristics and main functions



UMV 4301

1.5T to 16T - 1TL to 8TL

UMV 4301

22T to 50T - 11TL to 33TL

UMV 4301

60T to 120T



Regulation mode

Vector control, open loop

Vector control, closed loop

Voltage/frequency ratio (V/F)




Speed reference

Torque reference (regulation of motor current)

Constant torque

Constant power


Adjusted by basic frequency


Switching frequency

3 - 4.5 - 6 - 9 and 12 kHz

Depending on the rating, derating according to the switching frequency or automatic adjustment of the switching frequency according to the load


Overload capacity

150 % of controller rated current for 60s

175 % of controller rated current for 4s (in servomotor mode)



Hypersynchronous. Controller alone or with RF options

By DC injection


Speed feedback for closed loop operation

By incremental encoder (2 complementary channels + 0 marker)

By incremental encoder (2 complementary channels + 0 marker + 3 complem. channels per phase U, V, W) in servomotor mode

By resolver + RLV UMV option card in servomotor mode




Control logic

Negative      {   high level     > + 15V

Positive                  low level      < +  5V




Speed references

Analogue :

- differential voltage ± 10V (input impedance : 100 K)

- voltage 0/± 10V in common mode (input impedance : 100 K)

- current 0-20mA, 4-20mA or 20-0mA, 20-4mA

Digital :

- from keypad

- by jogging



Torque reference

Analogue :

- voltage 0/± 10V in common mode (input impedance : 100 K)

- current 0-20mA, 4-20mA or 20-0mA, 20-4mA (input impedance : 100 )

Digital :

- from keypad by incrementation


Speed regulation

Adjustment by programming the " proportional " and " integral " and " derivative " coefficients of the speed loop


Forward/reverse control

By inversion of the reference polarity

By logic input

From the operator console

Self-adaptation of the controller to the motor

Measurement of the motor characteristics (cos ϕ, magnetizing current and stator resistance)

and the encoder feedback.



Acceleration / deceleration ramps

Separate settings from 0 to 3200s. Linear or " S " curve. The radius of the " S " ramp can be adjusted.

Minimum/maximum speed limit

Speed variation between two stops.


Stopping mode

Freewheel stop : by logic input (terminal 30) immediate cut-off of motor power supply.

Stop on ramp (following different modes).

DC injection braking stop.

Orientation stop in specific position (closed loop).

Dynamic V/F selection

Automatic adaptation of the V/F curve to the motor load in V/F mode.

Flying restart

Ability of the controller to start while the motor is running.



Headquarter Office: 153 Nguyen Van Thu, Đakao Ward, Dist.1, HCMC.

Transaction Office: 33 Hoa Hong, Ward 2, Phu Nhuan District, HCMC.

Tel : (084.8) 3 517 4923 I Fax: (084.8) 3 517 4924


Website:  l



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