CACR-SR03BC1KS-Y264
June 04, 2026

CACR-SR03BC1KS-Y264

CACR-SR03BC1KS-Y264 is a discontinued original Yaskawa AC Servopack belonging to classic CACR-SR series, rated power 0.3kW, specially customized with Y264 OEM code exclusively matching Yasnac VS-800 CNC control system for feed-axis driving of customized CNC lathes and small machining centers. This model is no longer mass-produced by factory and mainly serves as replacement spare part for maintenance of old Yasnac machine tools. It is matched with Yaskawa USAM / USAF series 300W incremental encoder servo motors with fixed customized encoder definition for Y264 program setting.

Description

1. Product Overview

CACR-SR03BC1KS-Y264 is a discontinued original Yaskawa AC Servopack belonging to classic CACR-SR series, rated power 0.3kW, specially customized with Y264 OEM code exclusively matching Yasnac VS-800 CNC control system for feed-axis driving of customized CNC lathes and small machining centers. This model is no longer mass-produced by factory and mainly serves as replacement spare part for maintenance of old Yasnac machine tools. It is matched with Yaskawa USAM / USAF series 300W incremental encoder servo motors with fixed customized encoder definition for Y264 program setting.

2. Model Code Definition

  • CACR: Standard code of Yaskawa AC servo amplifier

  • SR: Basic speed-control platform, switchable between speed / position / torque control via internal parameters

  • 03: Rated output power 0.3kW

  • BC1: 200V-class dedicated power board with exclusive main circuit layout different from BB1 specification

  • KS: Customized control board with dedicated encoder signal processing circuit, unique I/O circuit layout compared with CS/ES/HS variants

  • Y264: Exclusive factory customization code with pre-locked internal parameters, fixed analog command matching program and dedicated CNC communication logic for designated machine tool model; core parameters are solidified at factory and random modification is prohibited

3. Electrical Specifications

  • Main power input: 3-phase AC 200V~230V, tolerance +10%/-15%, 50/60Hz; control power adopts independent single-phase AC 200~230V supply

  • Rated continuous output current: 3.0Arms; peak overload transient current: 8.5Arms for frequent acceleration & deceleration

  • Ambient operating temperature: 0℃~55℃; storage temperature: -20℃~85℃; working humidity ≤80%RH non-condensing

  • Protection grade IP20, cabinet vertical installation only; forbidden in environment with heavy dust, corrosive gas and oil mist; max applicable installation altitude ≤1000m

  • Adopts IGBT sine-wave PWM driving technology for stable low-vibration motor operation

4. Core Control Functions

Three control modes (speed, position, torque) are available, while Y264 pre-program locks core parameters to realize seamless analog signal matching with ±10VDC command from Yasnac VS-800 CNC host; KS control board is optimized for strong anti-interference on encoder feedback wiring to adapt harsh workshop electromagnetic environment.
Full-range protection functions integrated: overcurrent, overvoltage, undervoltage, overheat, regenerative circuit fault, encoder signal loss, CPU abnormal protection. Front single 7-segment digital display shows running status and numerical fault codes for rapid troubleshooting; P/N terminals reserved for external regenerative braking resistor connection for high dynamic start-stop applications.

5. Wiring Description

  • Power terminals: R/S-T for 3-phase main input; U/V/W for servo motor three-phase winding connection; PE terminal mandatory reliable protective earthing per local electrical safety standard

  • P & N terminals: external dynamic brake resistor wiring port

  • Control terminal block: receives ±10VDC analog speed/position command from VS-800 CNC; digital input pins for servo enable & fault reset; dry-contact relay output for external equipment fault alarm feedback

  • Dedicated circular aviation connector for encoder wiring complying with KS+Y264 customized pin assignment standard

6. Installation & Commissioning

Mount servo vertically inside electrical cabinet, reserve sufficient top/bottom clearance for heat dissipation, avoid mounting beside heat-generating components like transformers and contactors; multiple drives in one cabinet need forced air cooling.
Full wiring inspection before power-on to eliminate short-circuit risk; Y264 factory preset parameters are fixed so no full parameter setup needed during routine replacement; complete no-load jog test to verify motor rotation direction and stability before mechanical load connection.

7. Daily Maintenance & Fault Handling

Cut off total input power and wait minimum 10 minutes for internal capacitor residual high voltage discharge before any disassembly maintenance to prevent electric shock hazard. Quarterly cleaning of cooling vents and terminal screw tightening to avoid poor contact caused by long-term vibration.
Once fault alarm triggers, inspect sequentially: unstable input voltage, motor mechanical jamming/overload, loose encoder cable, insufficient cabinet heat dissipation; stop repeated power-on until root fault is cleared, unauthorized modification of locked Y264 firmware is forbidden.


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