Frequency inverters

Compact space-saver with many interfaces

Compact space-saver with many interfaces

New in Sieb & Meyer's product range is the particularly compact SD4B: The successor of the SD2B plus is suitable for use as a highly dynamic servo amplifier for the operation of rotary and linear low-voltage servo motors as well as for optimized operation of high-speed low-voltage synchronous and asynchronous motors.

In addition to sensorless operation of synchronous motors up to 240,000 rpm and asynchronous motors up to 360,000 rpm, the SD4B frequency inverter enables sensor-based operation of motors in the high-speed range with superimposed synchronization function based on 24V synchronization signals. In this way, several high-speed motors can be operated angle-synchronously in master/slave mode, which is helpful in the field of optical systems, for example. The robust speed control also allows high mass inertia ratios between motor and mold of up to 1:100.

Apart from its flexibility, the SD4B is characterized by its compact design with an IP20 housing: The small width of 25 mm requires little installation space. It offers the STO (Safe Torque Off) safety function and supports the CANopen and Modbus TCP communication protocols as standard. An EtherCAT interface is optionally available, Profinet and Powerlink are in preparation. In addition to inputs and outputs for TTL encoders, the device has five digital inputs/outputs each and an Ethernet interface for easy parameterization.

Thanks to the NRTL/CSA certification that has been applied for, users will be able to integrate the devices into systems for the US market in the future without additional approvals.