Omron drives deliver safe force and smooth flow

Designed to offer versatility and efficiency, while also safeguarding plants against damage and downtime, Omron’s new compact SX series 690 V inverters are available from 90 kW up to 1 MW.

The SX inverter series combines direct torque control and efficient vector braking needed for high-torque applications such as cranes, crushers, mills and mixers, as well as smooth motor control and energy saving features optimised for flow- and pressure-related applications, including fans, pumps, compressors and blowers.

Maximized versatility

To maximise their versatility, SX inverters provide dedicated application functionality, programmable controller facilities and an integral LCD display that can be readily customised to suit the needs of the user. The hardware can also be customised. Support can, for example, be provided for various types of network communications and a liquid cooling option is available.

Damage protection

The direct torque control used in SX inverters ensures fast response to disturbances caused, for example, by peak loads and sudden load changes, thereby protecting against mechanical damage and guarding against unnecessary drive tripping and downtime. The vector brake function provides further protection against interruptions to plant operation as it eliminates problems associated with excessive voltages present during braking.

Energy saving functionality

For fan, pump and similar loads, the dedicated functionality provided by the SX series drives includes an energy-saving sleep mode that stops motors completely in conditions of zero demand, an automatic pump rinse feature that protects against sludge build up in impeller pumps, and a multi-pump function that allows a single inverter to control up to seven pumps or compressors.

Shaft power monitor

Also provided is a shaft power monitor facility that observes the equipment load curve across the full speed range and compares it with user-defined warning and stop values. Harmful conditions, such as overload and underload, which might lead to plant damage and prolonged outages, are instantly detected.

All models in the range feature a compact space-saving design and all are housed in robust IP54 enclosures. To minimise installation time and costs, Class 3 EMC filters are incorporated as standard and models rated 200 kW and above are supplied with built-in fuses.