1. Product Overview

2. Full Model Decoding

• CACR: Yaskawa AC servo amplifier general code

• SR: Multi-mode control (speed / position / torque switchable by parameter)

• 03: Rated power: 0.3kW / 300W

• BZ: Main power board exclusive for ABSOLUTE ENCODER feedback (core difference vs BY incremental version; support multi-turn absolute motor)

• 1S: S-type customized control PCB, fixed firmware for Yasnac ±10V analog command CNC system

• SS: Special customized encoder interface + I/O circuit, dedicated pin definition for absolute PG aviation plug (different from SF/F suffix model)

3. Electrical Ratings

• Input power: 3Φ AC200~230V ±10%, 50/60Hz; independent single-phase AC200~230V control power supply

• Rated continuous output current: 3.0Arms; peak overload:8.5Arms

• Ambient: Operating 0℃~55℃; storage -20℃~85℃; Humidity ≤80%RH non-condensing; IP20 cabinet installation only

• Drive mode: IGBT sine-wave PWM, natural air cooling

4. Key Features

1. Analog ±10VDC speed/position command input for Yasnac CNC controller; dry-contact fault relay output, digital IO for servo enable/alarm reset

2. Complete protection: OV/UV/overcurrent/overheat/PG loss/regeneration fault/CPU error; single 7-segment LED for fault code display

3. Reserved P/N terminals for external regenerative braking resistor connection

4. BZ core advantage: Absolute position feedback, save homing operation after power cut; SS customized hardware cannot replace with BY incremental driver directly

5. Wiring Specification

• R/S/T: 3-phase main AC input; U/V/W: motor power output; PE compulsory protective grounding

• Exclusive round aviation connector for absolute encoder (SS dedicated pin assignment, incompatible with BY/SF plug wiring)

6. Replacement Notice

Cannot interchange with CACR-SR03BY1SF/BY1SG (BY=incremental only); cannot replace CACR-SR03BZ1SF directly due to SS customized PCB firmware difference。