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AMF Control Panels
Introduction
Victor AC Drives is a Microcomputer controlled General Purpose AC Drive (Inverter) with state-of-the-art electronics and incorporates the latest semi conductor power device - insulated Gate Bipolar Transistor (IGBT) and unique display unit consisting of 4 seven segment LEDs and 18x2 character LCDs. VICTOR AC Drives are available in VICTOR G1000 and VICTOR G2000 Series.
The control circuit is centered around a 15 bit Micro-controller.The control method used is Space Vector modulation (SVM) in VICTOR G1000 and Sinusoidal Pulse Width Modulation with Flux Control in VICTOR G2000, which optimises utilisation of input voltage and facilities smooth rotation of the Motor at low speeds.
Features
Raise/Lower Operation
The output frequency setting can be increased/decreased through external potential free contacts. This feature eliminates the need of external reference units such as Static reference unit, Motorised potentionmeter
Current Limiting Function
VICTOR Drives are capable of limiting the output current to a pe-set level ensuring continuous operation of the Drive without tripping, especially during acceleration.
Three Wire Operation
This function corrects the Drive output frequency based on load current to compensate the slip of the Motor and the resulting accuracy ca be 1% of base speed.
Fault Memory
Upto 19 previous faults are stored on first is first out order and can be viewed in the same order. This facilities ease of trouble shooting.
DC Injection Braking
This function is used to decrease the stop time and to improve the stop position accuracy. The frequency at which DC injection braking starts, braking voltage and braking time can be programmed.
Eight Step Speed Control
Multi step speed operation can be realised by turning on and off with three external potential free contacts and a maximum of eight different speeds can be programmed.
Electronic Thermal Overload Relay
The Drive will trip considering the Motor cooling characteristics at low speed (inverse time characterisations).
Catch On Fly
In high inertia loads, during power resumption after failure, inverter will catch on from the frequency corresponding to the actual motor speed and accelerates to the reference speed.
Multi Acceleration / Deceleration Time
Time function enables to program four different acceleration / deceleration time realized through two digital inputs.
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