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CHARACTERISTIC
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UMV 4301
1.5T to 16T - 1TL to 8TL
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UMV 4301
22T to 50T - 11TL to 33TL
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UMV 4301
60T to 120T
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Regulation mode
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• Vector control, open loop
• Vector control, closed loop
• Voltage/frequency ratio (V/F)
• Servomotor
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Regulation
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• Speed reference
• Torque reference (regulation of motor current)
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Constant torque
Constant power
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Adjusted by basic frequency
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Switching frequency
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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
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Overload capacity
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• 150 % of controller rated current for 60s
• 175 % of controller rated current for 4s (in servomotor mode)
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Braking
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• Hypersynchronous. Controller alone or with RF options
• By DC injection
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Speed feedback for closed loop operation
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• 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
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CONTROL
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Control logic
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• Negative { high level > + 15V
• Positive low level < + 5V
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Speed references
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• Analogue :
- differential voltage ± 10V (input impedance : 100 KΩ)
- voltage 0/± 10V in common mode (input impedance : 100 KΩ)
- current 0-20mA, 4-20mA or 20-0mA, 20-4mA
• Digital :
- from keypad
- by jogging
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Torque reference
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• Analogue :
- voltage 0/± 10V in common mode (input impedance : 100 KΩ)
- current 0-20mA, 4-20mA or 20-0mA, 20-4mA (input impedance : 100 Ω)
• Digital :
- from keypad by incrementation
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Speed regulation
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Adjustment by programming the " proportional " and " integral " and " derivative " coefficients of the speed loop
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Forward/reverse control
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• By inversion of the reference polarity
• By logic input
• From the operator console
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Self-adaptation of the controller to the motor
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Measurement of the motor characteristics (cos ϕ, magnetizing current and stator resistance)
and the encoder feedback.
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OPERATION
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Acceleration / deceleration ramps
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Separate settings from 0 to 3200s. Linear or " S " curve. The radius of the " S " ramp can be adjusted.
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Minimum/maximum speed limit
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Speed variation between two stops.
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Stopping mode
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• 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).
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Dynamic V/F selection
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Automatic adaptation of the V/F curve to the motor load in V/F mode.
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Flying restart
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Ability of the controller to start while the motor is running.
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