The three-phase AC motor drive modernized is intended for variable-frequency controlling of three-phase electric AC motor.
3PHACDMM supports the following functions and performances:
- Controllable start/stop engine;
- Reversal of rotation of engine with smooth closedown by sharp reversal of rotation;
- Smooth starting duty and closedown motor mode with controllable acceleration and deceleration;
- Rate control (scalar algorithm U/f);
- Acceleration and deceleration regulation;
- Electric motor protection against current overload and short-circuit;
- Protection against pulse current inrush;
- Current protection pickup adjustment;
- Overheating protection;
- Protection against the simultaneous operation of transistors of the upper and lower inverter arm;
- Emergency external signaling ;
- Internal supply voltage control;
- It allows feeding the external circuits with its own stabilized voltage +5 V and +15 V with current overload protection;
- Module power from the power circuit (for modules of 1,2,6 class);
- AC voltage connection without prior rectification (3PHACDMM with radiator type “1’);
- Smooth charge of filter capacity without additional charge resistor and charge control circuits (3PHACDMM with radiator type “1’).
