Yaskawa NPSA-SM-20B Servo Power Supply Module

Product Description

Yaskawa NPSA-SM-20B is a dedicated servo power supply unit for the Yaskawa NPSA series servo system. It converts three-phase AC input into stable DC bus voltage to supply power for matched servo amplifier modules. This unit features built-in rectifier, pre-charge circuit, dynamic braking interface and overvoltage protection, designed for multi-axis servo configurations. It is an obsolete legacy spare part, commonly used in older machine tool and automation production lines.

Product Functions

• Three-phase AC rectification and DC bus power supply for servo amplifiers
• Integrated inrush current pre-charge circuit to protect power circuit
• Provide connection terminal for external dynamic braking resistor
• Built-in overvoltage, overcurrent, overheat and phase loss protection
• Power status feedback signal for host controller interlock logic
• Support parallel configuration for higher power multi-axis servo groups

Applications

• CNC machine tool feed axis servo drive power system
• High-speed stamping, cutting and forming automation equipment
• Printing machinery, packaging and material handling production lines
• Legacy Yaskawa NPSA platform maintenance and spare replacement
• Special industrial automation multi-axis motion control equipment

FAQ