Motor Control

SPI9000, SPA9000, SPN9000 Drives - DC bus product portfolio

Eaton's common DC bus product portfolio fulfills solution demands with a flexible architecture. Built on the SPX9000 technology, the product family covers a number of front-end units and inverter units in the many power ranges.

Product Range

• 460V and 690V, 1-1/2 to 2000 Hp

Eaton offers a comprehensive range of common DC bus drive products. The front-end units convert a mains AC voltage and current into a DC voltage and current. The power is transferred from the mains to a common DC bus (and, in certain cases, vice versa). The SPA9000 (active front-end) unit is a bi-directional (regenerative) power converter for the front end of a common DC bus driveline up. An external LCL filter is used at the input. This unit is suitable in applications where low mains harmonics are required. The SPN9000 (non-regenerative front-end) unit is a unidirectional (motoring) power converter for the front-end of a common DC bus drive line-up. The device operates as a diode bridge using diode/thyristor components. A dedicated external choke is used at the input. The unit has the capacity to charge a common DC bus. This unit is suitable as a rectifying device when a "normal" level of harmonics is accepted and no regeneration to the mains is required.

The SPI9000 Inverter Unit is a bidirectional DC-fed power inverter for the supply and control of AC motors. The inverter is supplied from a common DC bus drive line-up. A charging circuit is needed in case a connection to a live DC bus is required. The DC side charging circuit is integrated up to 75 kW (FR4 - FR8) and external for higher power ratings.

Feature / Benefits

• Comprehensive range available for almost every application
• UL and cUL listed
• Meets NEC, NEMA and IEEE standards
• Alphanumeric keypad available for most drives
• Air cooling