gefran AGy-EV Series - Features; Accessories; Options

12 • Chapter 2 - General AGy-EV Instruction manual
Features
- Supply voltages generated by switching starting from the intermediate circuit voltage.
- Reduction of motor noise is achieved by the use of a special PWM control procedure.
- The output of the Inverter is protected against short circuits and earth faults.
- Motors can be switched on and off at the Inverter output (see chapter 5.2.4 of the manual).
- The Inverter is protected against overcurrents, undervoltages and overvoltages.
- Voltage dips (up to 15 ms for the power section) can be bridged; for the control section (see chapter 7.6 for the
automatic restart programmation).
- Sinusoidal output current generated by means of sinusoidally evaluated pulse-width modulation
- Excellent motor running characteristics, even in the lower frequency range.
- Programmable slip compensation reduces load-initiated changes in speed to a minimum.
- Voltage can be boosted in the lower frequency range, either manually or automatically (boost).
- Automatic voltage and frequency adjustment under an overload ensures the Inverter cannot stall.
- Parameters can be set either via a keypad or via an RS 485 interface.
- Reference value in the form of an analog signal 0...10 V, -10...10V, 0...20 mA, 4...20 mA as a frequency or via a serial
interface.
- Ramp function generator with linear or S-shaped ramp.
- Direct current braking by commands:
a - thru digital input;
b - automatic injection below a set frequency;
c - Before starting the motor; used with pump and fan drives which are driven by the medium or by the air and are
already turning before the drive is started. D.C. braking prevents the Inverter being switched on when already
turning.
- A range of voltage-frequency characteristics can be selected.
- Overload control.
- The last alarm 4 messages can be stored. Alarm messages are retained even after power failure.
- Open-loop or closed-loop operation, as desired.
- Indication via a potential-free contact and via the interface when a preselected speed is exceeded. Example of an
application: indication of stationary drive.
- Control via an RS 485 serial interface.
- Internal brake unit.
- Programmable logic
- Save parameters from the keyboard
- Recovery of parameters from the keyboard
- Change of language set up of the keyboard from E@syDrives
Accessories / Options
- Drive version (“-C”) with CANopen / DeviceNet integrated.
- External EMC input filters.
- External Input / Output chokes.
- External braking resistors (connected between terminals C and BR1).
- Encoder expansion card: EXP-ENC-AGY (code S525L)
- Remote keypad kit (code S5WW5).
-E
2
PROM key: PRG-KEY (code S6F38).
- I/O expansion card: EXP-D6A1R1-AGy (code S524L).
- 120 Vac digital input interface card : EXP-D8-120 (code S520L).
- Profibus interface card: SBI-PDP-AGy (code S5H28).