Ch.237
—————— Function and feature (overview) ——————
2. FUNCTION AND FEATURE
(OVERVIEW)
The AVy is a field-oriented vector Drive with excel-
lent speed control properties and a high torque.
Available control modes are:
- Field oriented with speed sensor
- Field oriented without speed sensor (Sensorless
vect mode)
- V/f control
Space vector modulation keeps the noise level to a
minimum.
- Output voltage up to 98% of input voltage
- Self tuning procedure for current, flux and speed
regulators
The Drives are fitted with IGBTs (insulated gate
bipolar transistors).
The output is protected against ground fault and phase
to phase output short.
Regulator power supply via switched-mode power
supply unit from the DC Bus circuit. Power supply
backup in the event of short-term voltage dips.
Galvanic isolation between control section and
command terminals.
Analog inputs designed as differential inputs.
Simple operation of the drive
- via the terminal strip
- via the user-friendly keypad
- via the PC program supplied and the RS485 serial
interface
- via a fieldbus connection (optional): DeviceNet,
PROFIBUS-DP or GENIUS.
- Easy Drive configuration tool
Fault register storing the last ten fault alarms with
the associated lifetime.
Overload control.
Engaging a running motor (Fly catching).
Three freely configurable analog inputs on the stand-
ard device.
Expansion of the analog / digital outputs and analog
/ digital inputs via option cards (EXP D8R4, EXP
D14A4F).
Reference value entry and actual value display as a
percentage of a user-defined dimension.
Speed and torque current regulation possible.
Adaptive speed regulation.
Speed-related alarms
Motor potentiometer function (Increase/Decrease
speed by command)
Jog operation
8 internal speed reference values (Preset speed)
4 internal ramps
PID control
Controlled stop in case of AC mains power loss.
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