PSH2405R is a 2-phase RS485 open-loop driver featuring a 32-bit motor control DSP chip. It supports position, speed, and multi-segment position control, with RS-485 bus communication via standard MODBUS-RTU, controlling up to 30 drives. The driver offers 16 constant-torque microsteps (up to 40,000), adjustable drive current up to 4.2 A, 2 high-speed differential inputs, 8 programmable inputs, 4 programmable outputs, DC24–50 V input, and overvoltage, undervoltage, and overcurrent protection.