S811+ Soft Starter
2022-11-28
■Overview
●The Eaton S811+ Soft Starter from Eaton’s electrical business is an electronic, self-contained, panel- or enclosure-mounted motor soft-starting device. It is intended to provide three-phase induction motors with a smooth start, both mechanically and electrically. The S811+ Soft Starters utilize six SCRs connected in a full wave power bridge. Varying the SCR conduction period controls the voltage applied to the motor. This in turn controls the torque developed by the motor. After the motor reaches speed, internal contacts are closed to bypass the SCRs.
●The S811+ has built-in communications capabilities via a Communications Port. The Communications Port is a screw terminal block that is utilized for ModBus® communications or communication to an EATON HMI. Communications adapters are available for other protocols. Please consult Eaton for availability.
●The S811+ Soft Starter utilizes a Digital Interface Module (DIM) that allows the user to configure the device, read and write system parameters, and evaluate fault codes for troubleshooting.
●The DIM includes an easy-to-read display and keypad to scroll through the parameters. The Digital Interface Module allows the user to modify control parameters, enable or disable protections, set system variances from Fault TRIP to Fault WARNING, set communication variables, monitor system parameters such as line voltages and currents and access the fault queue.
●The S811+ is designed to fulfill the industrial service requirements for applications such as Chillers, Pumps and Machine Tools that require less than 100% of the motor’s rated starting torque for worst case starting condition.
●The S811+ meets all relevant specifications set forth by UL 508, CSA 22.2-14-1995 IEC 60947-4-2, and CCC GB14048.
●The Eaton S811+ Soft Starter from Eaton’s electrical business is an electronic, self-contained, panel- or enclosure-mounted motor soft-starting device. It is intended to provide three-phase induction motors with a smooth start, both mechanically and electrically. The S811+ Soft Starters utilize six SCRs connected in a full wave power bridge. Varying the SCR conduction period controls the voltage applied to the motor. This in turn controls the torque developed by the motor. After the motor reaches speed, internal contacts are closed to bypass the SCRs.
●The S811+ has built-in communications capabilities via a Communications Port. The Communications Port is a screw terminal block that is utilized for ModBus® communications or communication to an EATON HMI. Communications adapters are available for other protocols. Please consult Eaton for availability.
●The S811+ Soft Starter utilizes a Digital Interface Module (DIM) that allows the user to configure the device, read and write system parameters, and evaluate fault codes for troubleshooting.
●The DIM includes an easy-to-read display and keypad to scroll through the parameters. The Digital Interface Module allows the user to modify control parameters, enable or disable protections, set system variances from Fault TRIP to Fault WARNING, set communication variables, monitor system parameters such as line voltages and currents and access the fault queue.
●The S811+ is designed to fulfill the industrial service requirements for applications such as Chillers, Pumps and Machine Tools that require less than 100% of the motor’s rated starting torque for worst case starting condition.
●The S811+ meets all relevant specifications set forth by UL 508, CSA 22.2-14-1995 IEC 60947-4-2, and CCC GB14048.
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