English

2. Installation

1. OVERVIEW

The CombiDrive® is an integrated motor/inverter for variable speed applications.

The inverter is microprocessor-controlled and uses state of the art IGBT technology for reliability and flexibility. A special pulse-width modulation method with ultrasonic pulse frequency permits extremely quiet motor operation. Inverter and motor protection is provided by comprehensive protective functions.

Features:

•Easy to install and commission.

•Closed loop control using a Proportional, Integral (PI) control loop function.

•High starting torque with programmable starting boost.

•Remote control capability via RS485 serial link using the USS protocol.

•Ability to control up to 31 CombiDrive® via the USS protocol.

•Optional remote control capability via RS485 serial link using PROFIBUS-DP.

•Factory default parameter settings pre-programmed for European and North American requirements.

•Output frequency (and hence motor speed) can be controlled by one of four methods:

(1)Built-in potentiometer.

(2)High resolution analogue setpoint (voltage or current input).

(3)Fixed frequencies via binary inputs.

(4)Serial interface.

•Built-in dc injection braking.

•Acceleration/deceleration times with programmable smoothing.

•Single signal relay output incorporated.

•External connection for optional Clear Text Display (OPm2) or for use as external RS485 interface.

•Fast Current Limit (FCL) for reliable trip-free operation.

•Optional factory-fitted resistive braking unit (also available as a separate post-sale option).

•Optional motor brake and interface.

•Integral class A or class B filter options.

© STÖBER plc 1998

05.02.01

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