CACR-SR15BB1BM is a standard general-purpose full-digital AC Servopack under YASKAWA Yasnac VS800 series, rated 1.5kW for 200V-class servo system, original Japanese industrial servo drive designed for CNC machine tools and general automation equipment. Different from customized locked-parameter variants with Y suffix like CACR-SR15BB1BF-Y228, this BM standard version features fully open adjustable control parameters and freely configurable I/O definition without factory firmware lock-up.

Model coding definition: CACR stands for VS800 CNC dedicated servo series; SR supports dual command input including ±10V analog signal and differential pulse position instruction; numeral 15 refers to nominal rated power 1.5kW; BB means universal main control board layout; digit 1 represents three-phase AC200~230V main power plus independent single-phase AC200V control power supply; BM denotes standard universal firmware matched for incremental encoder, all control functions available for user modification and full-function debugging access.

It adopts three-loop closed-loop control algorithm including position loop, speed loop and current loop, compatible with Yaskawa M-series and F-series 200V incremental encoder servo motors, widely applied on CNC lathe, machining center, packaging machinery, printing equipment, automatic conveyor and small-size robotic positioning equipment.

Main circuit input: Three-phase AC200V~230V, 50Hz/60Hz, allowable input voltage fluctuation from minus 15 percent to plus 10 percent.Control power supply: Independent single-phase AC200~230V separated from main power source to eliminate voltage surge interference during startup and shutdown.Nominal DC bus voltage ranges DC280V~DC320V; terminals P and BN are reserved for external regenerative braking resistor connection.Continuous rated output current is 11.7A; overload characteristic: 150% rated current sustainable for 60 continuous seconds, 300% peak overload permitted within 3 seconds during motor startup.

Nominal matching motor power:1.5kW; IGBT sine-wave PWM modulation technique, maximum output carrier frequency 300Hz; protection grade IP20 only for vertical cabinet installation; net weight approx 2.0kg.Built-in three core interfaces: CN1 optically isolated programmable digital input/output connector, CN2 exclusive incremental encoder feedback port, RS422 serial communication port; front panel seven-segment LED displays real-time running status and failure codes directly.

Three adjustable working modes switchable via parameter setup freely:Position control mode: Accept differential pulse input including pulse+direction or AB-phase quadrature pulse, maximum receiving pulse frequency reaches 500kHz.Speed control mode: ±10V analog voltage speed command, adjustable speed ratio up to 1:5000.Torque control mode: ±10V analog torque instruction with adjustable speed limit function.Equipped with speed search function for coasting motor restart; after unexpected power failure and motor inertial sliding, the drive can detect actual motor rotation speed automatically and resume operation without complete stop; supports automatic motor parameter identification and full gain auto-tuning, all PI gain, filter and acceleration/deceleration parameters editable on site.

Working ambient temperature scope: 0°C ~ +55°C; storage temperature: -20°C ~ +70°C.Operating relative humidity: 5% ~ 80% without condensation, oil mist or corrosive gas in installation environment.Rated full-load running below altitude 1000 meters above sea level; derate output load when installing over 1000 meters elevation.Applicable vibration condition: frequency range 10Hz~55Hz with maximum single amplitude 0.5mm.Reserve more than 50mm clearance space on top and bottom of servopack inside control cabinet for heat dissipation. Cut off all AC power before opening drive cover, wait at least 15 minutes for internal DC bus capacitor full discharge to avoid electric shock; hot plug of CN1 and CN2 connectors under powered condition is strictly forbidden.

Power terminals R/S/T connect three-phase main AC input cable; U/V/W terminals link three-phase power cable to servo motor stator winding; P and BN terminals are used for external braking resistor wiring.CN1 connector contains multi-channel optically isolated DI/DO signals, all terminal pin functions can be redefined via parameter modification, covering servo enable, emergency stop input, fault output and working mode switching signal.CN2 is dedicated feedback socket for 5V line-drive incremental encoder, incompatible with battery-backed absolute encoder directly.RS422 communication port supports parameter upload/download, real-time operating data reading and historical fault record inquiry.

Complete multi-protection system including overcurrent protection, DC bus overvoltage protection, DC bus undervoltage protection, power module overheat protection, encoder disconnection protection, long-time motor overload protection and main CPU abnormal fault protection.Integrated small-capacity internal dynamic brake circuit for energy dissipation under light-load intermittent stop; external regenerative resistor must be wired between P and BN for high-frequency start-stop and frequent emergency stop working conditions.The drive can store latest 10 groups of fault data permanently without data loss after power cut or manual fault reset operation.

All internal control parameters are fully open without firmware write protection; position gain, speed PI parameter, acceleration/deceleration slope and anti-resonance filter values can be revised arbitrarily by user.Full free I/O function remapping without fixed OEM definition restriction.Three core control modes can be switched randomly according to application requirement, compatible with mainstream CNC controller and PLC system via analog or pulse command signal.Factory preset parameters match standard 1.5kW servo motor; automatic motor identification is available after replacing matched servo motor to optimize control gains automatically.

Code 1: Main power circuit overcurrent faultCode 2: Main circuit hardware abnormal failureCode 3: DC bus overvoltage triggered protectionCode 4: DC bus undervoltage alarmCode 5: Power module overheat protection activatedCode 6: Encoder wire break or feedback signal lossCode 7: Continuous motor running overload protectionLetter A: Main control CPU operating exceptionLetter C: External emergency stop input signal triggered effective

Direct replacement requires identical model CACR-SR15BB1BM; customized BF/Y suffix servopack cannot substitute directly due to fixed locked firmware and predefined I/O logic, which needs factory custom firmware rewrite before replacement.Clean radiator accumulated dust every 3~6 months to prevent overheat shutdown caused by poor heat dissipation; fasten all power terminal screws regularly to avoid loose wiring damage.Full factory parameter initialization is prohibited unless necessary troubleshooting, as initialization will erase all user onsite debug parameters.

Original matching Yaskawa M-series and F-series 1.5kW 200V incremental encoder servo motor with standard 5000P/R encoder resolution; also adaptable to third-party incremental pulse servo motor with matched specification via parameter modification.