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New Beckhoff series

Servo drive for automation without control cabinets

The new AMI812x series of integrated servo drives expands the compact drive technology from Beckhoff with devices that can be installed decentrally in the field. It combines servomotor, output stage and fieldbus connection.

The AMI812x in three lengths is the basis for a new series of integrated servo drives for automation without control cabinets. © Beckhoff

As an Ethercat slave, the integrated AMI812x servo drive can be placed directly on the machine without a control cabinet and without an upstream I/O level. In this way, compact machines without control cabinets can be realized. For the market launch, the series with the AMI812x includes three lengths of flange size F2 with standstill torques from 0.5 to 1.1 Newton meters. The AMI812x is available on request with an absolute multiturn encoder without battery buffering and backlash-free holding brake. With the additional shaft seal, the servo drive achieves the high degree of protection IP 65 and is suitable for all installation positions. The STO safety function is optionally integrated via the Twinsafe Logic.

The fast control technology, based on field-oriented current and PI speed control, supports positioning tasks. Numerous monitoring functions, such as overvoltage and undervoltage, overcurrent or motor load via the calculation of an I²T model, offer a high level of operational reliability, according to the company.

The respective operating status is indicated by the integrated status LEDs.

The electronics and motor are powered via the M12 power interface. The M8 bus interface for Ethercat offers a second port for simple cascading via Ethercat daisy chain. A motor variant with Ethercat P connection is also planned. The I/O interface (M8) enables the direct connection of two sensors or actuators in the signal range 24 volts DC to 0.5 amps. The connection cables are available with straight and angled outlets. Very high torques can also be achieved with the matching planetary gearbox from the AG2250 series. as

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