Yaskawa CACR-SR15SZ1SS-Y87 Digital Servo Drive
May 29, 2026

Yaskawa CACR-SR15SZ1SS-Y87 Digital Servo Drive

The CACR-SR15SZ1SS-Y87 is a digital AC servo drive of Yaskawa VS-800 series for 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. It is equipped with serial encoder interface and Y87 dedicated OEM parameter group, suitable for single-axis and multi-axis automation systems requiring customized operating parameters and stable servo performance.

Description

Model Definition

CACR: AC servo drive (SERVOPACK) product family
SR: VS-800 series for speed and position integrated control
15: 1.5 kW rated output power
S: Matched with Yaskawa S-series servo motors
Z: Customized hardware for 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
Y87: Dedicated OEM parameter set preconfigured 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: Internal integrated DC bus circuit
Continuous output current: 9.9 A
Peak output current: 28 A for short-time operation
Output frequency range: 0 Hz to 400 Hz
Power dissipation: Approximately 105 W
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 serial encoder signals
System bus: Internal bus design for signal 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: 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 operating status and alarm codes

Core Functions

Current, speed and position three-loop control ensures stable and high-precision motion performance.
Serial encoder interface features strong anti-interference and stable long-distance signal transmission.
Y87 preloaded OEM parameters simplify on-site commissioning and keep consistent operating status.
Compact vertical structure adapts to standard industrial cabinet installation space.
Complete protection against overvoltage, undervoltage, overcurrent, overheating, encoder fault and overload.
Supports torque, speed and position control modes to meet various working conditions.
Mature modular structure facilitates daily maintenance and routine inspection.

Application Scenarios

Legacy CNC lathes, milling machines and machining centers with serial encoder servo systems
Special machine tools and production lines with Y87 parameter matching requirements
Rotary tables, material handling and general industrial conveying equipment
VS-800 series servo system replacement and production line renovation projects
Automation equipment with high requirements for signal stability and anti-interference performance

Usage and Maintenance

Maintain smooth air circulation inside the cabinet to guarantee heat dissipation effect.
Keep ambient temperature within the standard range to prevent performance decline.
Complete wiring of power, feedback, control and communication circuits before power-on.
Verify motor type and encoder specification to match the drive configuration.
Clean heat dissipation components and air passages every six months, and inspect terminal connections regularly.
Calibrate control loops, feedback signals and communication status once a year to maintain long-term stable operation.


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