The KDA spindle drive series is a modular digital main-spindle drive platform for CNC machine tools, built to control compatible asynchronous and frameless spindle motors across a continuous multi-kilowatt power range.
Drive regulation, monitoring, and diagnostics are executed by an onboard microcomputer using very high-resolution rotor/spindle position measurement to support a wide constant-power speed range and precise spindle positioning/C-axis operation. In addition to speed control, the drives support internal position control using motor feedback and can also use a separate high-resolution spindle feedback device when the application requires it. For control-cabinet design, the drives are intended for enclosure mounting with forced cooling and are offered in versions that conduct most heat loss out through a rear heatsink to reduce internal enclosure thermal load. Integration is supported through standard CNC control I/O with optional command interfaces (analog, parallel digital, and fiber-optic real-time communication), and setup is handled through the drive’s programming/operating interface with parameter storage and transfer via a serial connection for repeatable commissioning