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technical description
Frequency converters
• AFC 120
• MFC 311
• MFC 310
• MFC 710 (sensorless vector)
DC drives
Thyristor based rectifiers TZP type
Thyristor System UT type
Drive sets and power distribution / control units
Drive sets TZS and PZS type
Power distribution / control units, Power supplies
Pulse DC Power Supply ZI type (20V / 25A)
ZRS, TZG and TZE

download order form (pdf)

SENSORLESS VECTOR
FREQUENCY CONVERTER
MFC710 type

1,1 - 315 kW

 
  • Three-phase supply 3x400 V  50/60 Hz
  • Output 0 – 400 Hz, 3 x 400 V
  • Rated output power 15 - 315 kW
  • Advanced control modes:
                   U/f=const,
                   Vector mode (sensor or sensorless)
  • Removable operating panel with LCD alphanumeric display
  • Integrated Logic Controller (PLC)
  • Built-in "reeler-calculator"
  • Built-in pump or fan set controller
  • Integrated PID controller
  • Embedded communication module RS232/RS485 (Modbus)
  • Programmable fixed frequencies
  • Digital potentiometer function
  • Direct rotational (or linear) incremental encoder (5V line interface)
  • Elimination of resonance frequencies bands
  • Definable shapes and slopes of selected frequency characteristic (linear, "S"-shaped)
  • Allowable work with torque control
  • Automatic identification of motor parameters
  • Programmable control structure:
    - two customizable control variants (A & B):
    - speed selector block (control panel, analog input, PID controller, digital potentiometer, function block),
    - torque selector block(analog inputs, function block),
    - run and direction control (control panel, digital input, function block),
    - programmable digital inputs: run, direction, run blockade, external trip, trip cancellation,
    - programmable digital outputs (3 relays and 1 open collector type): ready, run, fault, warning, overtemperature of heatsink, given speed reaching, threshold speed reaching, current limit, function block),
    - programmable analog outputs: frequency, rotational speed, output current, voltage, loading of motor, function block.
  • Total work counter (hours)
  • Diagnostic and blockade system
  • Control panel protection with system of passwords
  • Embedded RFI filter (for up to 15kW)
  • Memory for 4 motors parameters
  • Allowable use of default values for all parameters

download flyer (pdf)
download user's manual (pdf)

sensorless vector frequency converter

"TWERD" Power Electronics Company
ul. Konwaliowa 30, 87-100 Torun
tel. +48 (056) 654-60-91, tel./fax +48 (056) 654-69-08 w.39
ISO 9001
copyright 2005