0-56921-512AA | Reliance Electric Regulator / Control Board for GV 3000

The 0-56921-512AA is a Regulator PCB designed for use with the GV3000 series AC Power Module. Two regulator boards are employed in these controllers, with this specific card being version 5.0. Lacking a faceplate or enclosure, it is directly integrated into the drive controller, sliding into a bracket attached to the membrane switch keypad. 

Utilizing microprocessors, the 0-56921-512AA regulates the drive controller and facilitates parameter adjustment via the keypad. It interprets various feedback signals from power circuits, including external speed references and internal heat sensor feedback. Additionally, it can process data from a pulse tachometer for vector regulation. 

The 0-56921-512AA serves as a Regulator PCB intended for use with the GV3000 series AC Power Module manufactured by Reliance Electric. In the GV3000 controllers, a total of two regulator boards are employed, with this particular card designated as version 5.0. Notably, the board lacks both a faceplate and an enclosure, directly integrating into the drive controller. It smoothly slides into a bracket affixed to the membrane switch keypad. 

Utilizing microprocessors, the 0-56921-512AA assumes the task of regulating the drive controller, employing the keypad for parameter adjustment to fine-tune drive operations. It demonstrates the capability to discern various feedback signals originating from power circuits, including external speed reference signals and internal heat sensor feedback. Moreover, it can interpret data from a pulse tachometer, provided it is configured for vector regulation. 

The 0-56921-512AA facilitates the provision of PWM gating signals to IGBT powered devices and enables the formation of drive status indicators through A/B contacts. Additionally, it supplies analog output and a braking signal to the snubber resistor. Equipped with 14 LED indicators and a 4-digit display, the board offers a comprehensive display capability, showcasing error codes, drive parameters, and their corresponding values with precision.