Yaskawa CD-SP01 Digital Servo Drive
May 29, 2026

Yaskawa CD-SP01 Digital Servo Drive

The CD-SP01 is a compact digital AC servo drive of Yaskawa early VS series, specially designed for Yasnac CNC control systems. It adopts built-in forced air cooling, with stable output performance for conventional servo axes. It is equipped with standard encoder feedback interface and universal control circuits, featuring excellent compatibility and reliable operation. It is widely used for maintenance, replacement and retrofitting of legacy CNC machine tools and traditional industrial automation equipment.

Description

Model Definition

CD-SP01: Compact servo drive unit of Yaskawa VS series, matching Yasnac CNC systems

Technical Specifications

Electrical Parameters

Main power supply: 3-phase 200–230 V AC, tolerance -15% to +10%, 50/60 Hz
Control power supply: 1-phase 200–230 V AC, tolerance -15% to +10%, 50/60 Hz
DC bus voltage: Internal integrated DC bus circuit
Continuous output current: 12.5 A
Peak output current: 32 A for short-time operation
Output frequency range: 0 Hz to 400 Hz
Power dissipation: Approximately 100 W
Compatible motors: Yaskawa standard S-series servo motors with incremental encoders

Mechanical & Environmental Parameters

Cooling method: Built-in forced air cooling with internal fan
Protection class: IP20 for the whole unit
Operating temperature: 0 °C to +50 °C
Storage temperature: -20 °C to +80 °C
Maximum installation altitude: 1000 m, 1% performance derating per 100 m above 1000 m
Vibration resistance: 0.4 g (10–60 Hz), 0.2 g (60–200 Hz)
Dimensions (W×H×D): 72 mm × 365 mm × 190 mm
Weight: Approximately 5.2 kg

Interface and Communication Configuration

Motor feedback: Dedicated encoder interface supporting incremental encoder signals
System bus: Internal signal bus for drive internal data transmission
Main power interface: R, S, T for main power input, L1, L2 for control power input, U, V, W for motor output
Regenerative interface: Reserved terminals for external regenerative resistor connection
Control I/O: 50-pin interface with multiple isolated digital inputs and outputs
Analog interface: ±10 V DC analog command input and speed monitoring output
Communication: Basic serial port for simple parameter setting and fault query
Display unit: LED indicator lights for operating status and alarm prompts

Core Functions

Current, speed and position three-loop control ensures stable and reliable motion performance.
Standard incremental encoder interface realizes accurate position detection and signal feedback.
Universal control circuit design delivers good compatibility with legacy Yasnac CNC systems.
Built-in fan cooling structure ensures long-term continuous operation under normal load.
Complete protection against overvoltage, undervoltage, overcurrent, overheating, encoder fault and overload.
Supports speed and position control modes to meet the operation demands of traditional machine tools.
Integrated compact structure facilitates installation, inspection and daily maintenance.

Application Scenarios

Feed axes and auxiliary axes of old-type CNC lathes, milling machines and machining centers
Traditional industrial automation equipment equipped with Yasnac control systems
Material handling and simple positioning automation machinery
VS series servo system replacement and old production line renovation projects
Cost-effective servo matching for general low-to-medium precision motion equipment

Usage and Maintenance

Maintain smooth air circulation inside the cabinet to guarantee heat dissipation effect.
Keep ambient temperature below 50 °C to prevent performance decline and component aging.
Complete wiring of power, feedback and control circuits before power-on.
Set basic parameters according to on-site motor and operating requirements.
Clean cooling fan and air passages every six months, and inspect terminal connections regularly.
Check feedback signal and operating status once a year to maintain long-term stable operation.


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