This document is the user manual for the SR4 2 Phase Step Motor Drive, which describes the features and characteristics of the drive, as well as installation, connections, switch selection, motor selection, error codes, etc.
The SR4 is a 2‑phase step motor drive designed for industrial motion‑control applications. It offers selectable running current, microstepping, and a range of control modes such as Step & Direction or CW/CCW pulse.
The manual provides detailed instructions for mounting, power‑supply connection, motor wiring, input configuration, fault handling, and includes technical specifications and torque curves for reference.
| Power supply voltage | 24‑48 VDC |
|---|---|
| Maximum output current | 4.5 A peak |
| Microstep resolution settings | 8 (400‑51200 steps/rev) |
| Maximum speed | 3000 rpm |
| Running current (default) | 2.0 A |
| Fault output collector current | 100 mA max |
The SR4 operates from a 24 V to 48 V DC power supply.
The drive can deliver up to 4.5 A peak current.
Eight microstep settings are available: 400, 800, 1600, 3200, 6400, 12800, 25600, and 51200 steps per revolution.
The drive supports speeds up to 3000 rpm.