Yaskawa CVSR‑404H CODE NO

Product Name: CVSR‑404H Servo Power Module

Product Brief Introduction: It is Yaskawa legacy‑series servo power drive unit, converting control command signal into power output to drive servo motor, completing position, speed and torque closed‑loop motion control for industrial equipment.

Technical Specifications: Rated input three‑phase AC; built‑in power rectifier and inverter circuit; support pulse and analog command input; internal over‑current, over‑voltage, over‑heat detection circuit; CODE NO serves as hardware version identification code for unit configuration matching.

Category:
Description

Functional Features: Closed‑loop position / speed / torque three‑mode control; built‑in multiple protection functions; encoder feedback signal processing; support external regeneration resistor connection; status alarm code output for fault diagnosis.

Application Scenarios: Machine tool feed axes, material handling equipment, automated positioning machinery, traditional Yaskawa servo system retrofit scenarios.

Performance Parameters: High‑dynamic response for servo motion; rapid fault alarm output; match designated Yaskawa servo motor models; CODE NO number defines hardware revision and internal parameter preset configuration.

Material Composition: Metal aluminum heat sink; power semiconductor IGBT components; industrial multilayer PCB; flame‑retardant metal casing; high‑current power terminals.

Structural Features: Vertical cabinet mounting structure; power terminals on lower section; signal connector on upper section; aluminum heat sink exposed for convection cooling; front panel with status indicator lamps.

Working Principle: Receive position/speed control command from upper controller, collect real‑time motor encoder feedback signal, operate internal control algorithm, drive IGBT power circuit to output variable‑frequency variable‑voltage power to servo motor to realize closed‑loop motion adjustment.

Installation Requirements: Vertical DIN‑rail or screw panel mounting inside control cabinet; retain sufficient ventilation space around heat sink; connect power cable and encoder cable according to official wiring drawing; reliable protective ground connection.

Usage Notes: Confirm CODE NO matches system configuration before commissioning; power supply must be cut off and wait for internal capacitor discharge before maintenance; encoder cable must use shielded cable; do not operate beyond rated voltage and current range; install external regenerative resistor when frequent deceleration occurs.

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