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ASCO Microprocessor Controller

Posted on December 11, 2013

Emerson Network Power has introduced the ASCO Group G Microprocessor Controller that is designed for the power control of mid-range transfer switches.

The ASCO Group G Microprocessor Controller is designed to meet a growing demand for smarter power transfer switches that enhance onsite power system reliability and help optimize efficient operation, according to the company. It is standard in mid-range ASCO Series 300 automatic transfer switches (ATS).

Enhancements to the design of the controller include an integrated one-line diagram, configurable relay outputs and modular accessories that are designed to optimize on-site power operation, the company said.

The controller is self-contained and requires no other components for operation. It accommodates open or delayed transition transfer operation in both automatic and non-automatic configurations. Multiple-source sensing capabilities encompass voltage, frequency, including under frequency sensing on normal and emergency sources, optional current card, and single and three phase sensing, which does not require an external metering device.

The graphical LCD display is designed to be intuitive and easy to navigate and includes a soft keypad and six LED indicators that are designed to provide broader capabilities and options than 4 x 20 controllers. Two indicators, for example, show switch position and source availability—green for normal and red for emergency operation. Capabilities also include current measurement, ATS status and time delays and event logging. A multi-lingual user interface for configuration and monitoring is designed greater application flexibility.