Stepper Motor Controller for PCI

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Stepper Motor Controller for PCI – PCI321

The PCI321 Intelligent Stepper Motor Controller with amplifiers is an ideal solution for all applications where stepper motors must be controlled with a maximum of flexibility and a minimum of overhead. The local processor handles all high-level commands to provide maximum control for both straightforward as very complex applications.


Controls two 2-phase or one 4-phase motor(s)
Firmware compatible with PCI321 intelligent stepper motor controller for external amplifiers
Interrupts on position breakpoint, trajectory complete and command complete
Each phase delivers 3A@55V and is over-current and thermal protected
Programmable hold-current reduction
User configurable maximum current
Brake support
Full-, half- and micro-stepping (up to 16 micro steps per full-step)
Two home sensor inputs
Step-rates up to 50kHz
Programmable acceleration from 50Hz/sec to 5,000kHz/sec.
Hardware synchronization lines
PCI9050 Controller by PLX (PCI 2.1compliant)


PCI321_datasheet – product datasheet