The 575-V models are available in sizes from 0.5 to 30 hp. The 575V GS2 variable-frequency ac drives offer dynamic braking, PID, and a removable keypad. The drives can be configured using either the built-in digital keypad or the standard RS-485 serial communications port. GS2 drives are equipped with one programmable analog input and output, six digital inputs, and two relay outputs.