Yaskawa CACR-SR15SZ1SS-Y218 Digital Servo Drive
May 29, 2026

Yaskawa CACR-SR15SZ1SS-Y218 Digital Servo Drive

The CACR-SR15SZ1SS-Y218 is a classic digital AC servo drive of Yaskawa VS-800 series, widely used in traditional CNC and industrial automation control systems. It adopts built-in forced air cooling, with 9.9 A continuous current and 28 A short-term peak current. Equipped with dedicated serial encoder interface and Y218 exclusive OEM parameter group, this drive features stable signal transmission and optimized running parameters, ideal for retrofitting and replacing servo units on dedicated multi-axis automation and machine tool equipment.

Description

Model Definition

CACR: AC servo drive (SERVOPACK) product series
SR: VS-800 series, dedicated for speed and position integrated control
15: 1.5 kW rated output power
S: Matched with Yaskawa S-series servo motors
Z: Customized hardware with dedicated I/O and feedback circuits
1: Single-phase 200 VAC control power supply
S: Serial encoder signal interface for motor feedback
S: Standard base firmware
Y218: Factory preloaded OEM customized parameters for specific application equipment

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: Integrated internal DC bus design
Continuous output current: 9.9 A
Peak output current: 28 A for short-time operation (max 30 s)
Output frequency range: 0 Hz to 400 Hz
Compatible motors: Yaskawa S-series servo motors equipped with serial 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 +55 °C
Storage temperature: -20 °C to +85 °C
Maximum installation altitude: 1000 m, 1% performance derating per 100 m above 1000 m
Vibration resistance: 0.5 g (10–60 Hz), 0.2 g (60–200 Hz)
Dimensions (H×W×D): 380 mm × 150 mm × 200 mm
Weight: Approximately 5.5 kg

Interface and Communication Configuration

Motor feedback: CN2 9-pin interface supporting Yaskawa dedicated serial encoder signals
Main power interface: R, S, T for three-phase main power input; L1, L2 for control power input; U, V, W for motor power output
Regenerative interface: P, B terminals for external regenerative resistor connection
Control I/O: CN1 50-pin interface with multiple isolated digital input and output channels
Analog interface: ±10 V DC analog command input and real-time speed monitoring output
Communication: RS232 and RS485 interfaces supporting Modbus RTU protocol
Display unit: Seven-segment LED display for real-time operating status and alarm codes

Core Functions

Three-loop control of current, speed and position delivers high precision and stable motion performance.
Serial encoder interface provides strong anti-interference capability and supports long-distance signal transmission.
Y218 pre-calibrated OEM parameters reduce on-site debugging work and ensure consistent operating performance.
Supports speed, torque and position multiple control modes to adapt to diverse working conditions.
Complete protection against overvoltage, undervoltage, overcurrent, overheating, encoder failure and overload.
Vertical compact structure is suitable for installation inside standard industrial control cabinets.
Mature hardware and firmware guarantee reliable long-term continuous operation.

Application Scenarios

Legacy CNC lathes, milling machines and machining centers using serial encoder servo systems
Special machine tools and automation production lines configured with Y218 parameter settings
Rotary positioning tables, material handling and conveying automation equipment
VS-800 series servo system maintenance, replacement and production line upgrade projects
Industrial equipment with high requirements for signal stability and anti-electromagnetic interference

Usage and Maintenance

Keep unobstructed airflow around the drive to ensure good heat dissipation.
Maintain ambient temperature within the standard range to avoid performance reduction.
Complete all wiring of power, encoder, control signals and communication lines before powering on.
Confirm the connected motor is S-series model with serial encoder to match the drive.
Check LED display status, fan running condition and abnormal noise during daily operation.
Clean cooling passages and fasten all terminal connections every six months.
Inspect internal components, communication status and control loop performance once a year for stable long-term operation.
CACR-SR15SZ1SS-Y218

Yaskawa CACR-SR15SZ1SS-Y218 Digital Servo Drive

Product Description

The CACR-SR15SZ1SS-Y218 is a mature digital AC servo drive of Yaskawa VS-800 series for CNC machine tools and general industrial automation systems. It adopts built-in forced air cooling design, with 9.9 A continuous output current and 28 A short-term peak current. Equipped with dedicated serial encoder interface and Y218 exclusive pre-set OEM parameters, this drive features strong anti-interference performance and optimized operating logic. It is widely applied for replacement and maintenance of legacy servo equipment with customized parameter requirements.

Model Definition

CACR: AC servo drive (SERVOPACK) product family
SR: VS-800 series for integrated speed and position control
15: 1.5 kW rated output power
S: Designed for Yaskawa S-series servo motors
Z: Customized hardware for special I/O and feedback circuits
1: Single-phase 200 VAC control power supply
S: Serial encoder signal interface for motor feedback
S: Standard base firmware
Y218: Dedicated OEM parameter set pre-configured for specific application devices

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: 9.9 A
Peak output current: 28 A for short-time operation (maximum 30 seconds)
Output frequency range: 0 Hz to 400 Hz
Compatible motors: Yaskawa S-series servo motors equipped with serial 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 +55 °C
Storage temperature: -20 °C to +85 °C
Maximum installation altitude: 1000 m, 1% performance derating per 100 m above 1000 m
Vibration resistance: 0.5 g (10–60 Hz), 0.2 g (60–200 Hz)
Dimensions (H×W×D): 380 mm × 150 mm × 200 mm
Weight: Approximately 5.5 kg

Interface and Communication Configuration

Motor feedback: CN2 9-pin interface for Yaskawa serial encoder signals
Main power interface: R, S, T for main power input; L1, L2 for control power input; U, V, W for motor output
Regenerative interface: P, B terminals for external regenerative resistor connection
Control I/O: CN1 50-pin interface with multiple isolated digital inputs and outputs
Analog interface: ±10 V DC analog command input and speed monitoring output
Communication: RS232 and RS485 interfaces supporting Modbus RTU protocol
Display unit: Seven-segment LED display for real-time status and alarm codes

Core Functions

Current, speed and position three-loop control ensures high-precision and stable motion performance.
Serial encoder interface delivers excellent anti-interference capability and supports long-distance signal transmission.
Y218 dedicated parameters realize one-step commissioning and keep consistent operating status for matched equipment.
It supports torque, speed and position control modes to meet diverse production demands.
Multiple protection functions cover overvoltage, undervoltage, overcurrent, overheating, encoder fault and overload.
Compact vertical structure fits standard industrial control cabinet installation.
Proven hardware and firmware ensure stable continuous operation in industrial environments.

Application Scenarios

Legacy CNC lathes, milling machines and machining centers with serial encoder servo systems
Specialized machine tools and automation lines requiring Y218 parameter configuration
Rotary tables, material handling equipment and medium-sized automated assembly lines
Maintenance, replacement and renovation projects of VS-800 series servo systems
Automation equipment with high requirements for signal stability and anti-interference ability

Usage and Maintenance

Ensure unobstructed airflow inside the cabinet to guarantee heat dissipation efficiency.
Keep ambient temperature within the rated range to avoid performance degradation.
Complete all power, feedback, control and communication wiring before switching on power.
Confirm the connected motor is S-series model with serial encoder for normal matching.
Check LED status, fan operation and abnormal noise during daily operation.
Clean cooling channels and tighten terminal connections every six months.
Calibrate control loops, feedback signals and communication status once a year to maintain long-term stable operation.


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