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VietNam Japan

Inverter Leroy Somer

Inverter Leroy Somer
Code Product : UMV 4301
Category : Inverter
Producer : Leroy Somer Vietnam
 
Stock : 2  cái
Provider : GNN
Brief:
UMV 4301 Open and closed loop speed controllers for asynchronous and synchronous motors.
Image :
Specification :

 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

20

 

Characteristics and main functions
 

 

CHARACTERISTIC

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)

Servomotor

 

Regulation

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)

 

Braking

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

 

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.

 

OPERATION

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.

 

GNN VIETNAM

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

Email: contact@gnnvietnam.com

Website:  www.gnnvietnam.com  l   www.gnn.com.sg

 

 

Fields of application :
  • Automotive
  • Cement
  • Ceramic
  • Electric, Industrial Electric
  • Fertilizer
  • Food process
  • Machinery Manufacturer
  • Marine Building
  • Packaging
  • Plastic, Rubber
  • Power Generation
  • Rail Industry
  • Steel
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