This manual describes the functions and operating methods of the PCD4511/4521/4541.
The PCD4511/4521/4541 series are excitation‑control LSIs for 2‑phase stepper motors, offering continuous, preset, zero‑return, and timer operations with S‑curve acceleration. They support single‑axis (PCD4511), two‑axis (PCD4521), and four‑axis (PCD4541) configurations and can be interfaced with a stepper‑motor driver such as the NP‑7026.
The manual details software settings, command structures, register tables, example configurations, and wiring diagrams. It also includes handling precautions, differences from the earlier PCD4500 series, and contact information for Nippon Pulse Motor Co., Ltd.
| Package (PCD4511) | 44‑pin QFP |
|---|---|
| Package (PCD4521) | 64‑pin QFP |
| Package (PCD4541) | 100‑pin QFP |
| Reference clock frequency | 4.9152 MHz (4,915,200 Hz) |
| Axes supported | 1 (PCD4511), 2 (PCD4521), 4 (PCD4541) |
| Maximum preset counter | 24‑bit, up to 16,777,215 pulses |
The PCD4521 is supplied in a 64‑pin QFP package.
The PCD4541 can control four axes (X, Y, Z, and U).
The reference clock frequency is 4.9152 MHz (4,915,200 Hz).
Setting bit 5 in the control command to 1 enables the S‑curve accel/decel function.