CACR-SR15BE12G is a standard general-purpose full-digital AC Servopack belonging to YASKAWA Yasnac VS800 servo product series with rated 1.5kW for 200V industrial application. It is non-customized standard edition without locked OEM firmware, all internal control parameters and I/O definitions are fully open for user modification and free configuration, different from Y-suffix locked customized models.

Model code breakdown: CACR stands for VS800 series servo designed for CNC feed axis motion control; SR denotes dual command input circuit supporting ±10VDC analog speed signal and differential pulse position instruction; numeral 15 corresponds to 1.5kW rated compatible servo motor; BE represents standard universal main control PCB layout; digit 2 indicates separated independent power supply of main circuit and control circuit; 12G is standard universal base firmware version with complete open parameter access. This drive is compatible with conventional Yaskawa standard incremental encoder servo motors and supports cross replacement with other open-parameter VS800 standard servo after corresponding parameter setup.

Main circuit input is three-phase AC200V~230V for 50Hz and 60Hz power grid, allowable input voltage fluctuation ranges from minus fifteen percent to plus ten percent of rated voltage. Control power is independently supplied by single-phase AC200V~230V to avoid voltage disturbance from main power loop variation.

Continuous rated RMS output current is 11.7A. Overload characteristic: 150% rated current is permitted for continuous 60-second running, while 300% peak overload is limited within 3 seconds during motor startup phase. IGBT sine-wave PWM modulation is adopted with maximum output frequency 300Hz; nominal DC bus operating voltage is DC280V~DC320V. Terminals P and BN are reserved for external regenerative braking resistor connection to absorb regenerative energy during frequent deceleration and emergency stop. Protection grade is IP20 and only vertical cabinet installation is allowed, unit net weight is approximately 3.3kg. CN2 feedback port is configured for standard incremental encoder, absolute encoder is not supported under original hardware specification.

Core standard feature of 12G edition: all speed loop PI gains, position loop parameters, acceleration/deceleration values and filter settings can be freely edited via onboard parameter menu; speed, position and torque three control modes are switchable arbitrarily according to field requirement. RS422 serial communication enables full functions including parameter reading, writing, upload and download.

Operating ambient temperature ranges from 0°C to +55°C; storage temperature is from -20°C to +70°C. Working relative humidity maintains 5%~80%RH without condensation inside the servo casing. Reduce continuous output load appropriately when installation altitude exceeds 1000 meters above sea level.

Permitted working vibration condition is 10Hz~55Hz with maximum single vibration amplitude 0.5mm. Reserve over 50mm ventilation clearance on top and bottom inside control cabinet for effective heat dissipation. Cut off all AC input power and wait minimum 15 minutes for full discharge of internal DC bus capacitor before opening shell or plugging CN1 and CN2 connectors; hot swap under powered condition is strictly prohibited.

R/S/T terminals connect three-phase main AC input power cable; U/V/W terminals link three-phase power wiring of matched servo motor; P and BN terminals are used for external regenerative braking resistor wiring.

CN1 is optically isolated programmable digital I/O connector, all pin signal definitions can be redefined freely by parameter setup. CN2 is standard incremental encoder feedback interface matching regular specification servo motor. Front panel seven-segment LED displays real-time running state and unified VS800 series standard fault codes.

Complete protection system includes output overcurrent, DC bus overvoltage, DC bus undervoltage, internal drive overheat, encoder disconnection detection, long-time motor overload and main CPU abnormal protection. Latest ten groups of fault data are permanently stored in nonvolatile memory without data loss after power-off or manual fault reset.

Internal dynamic brake circuit realizes energy dissipation under light-load regular deceleration; external braking resistor must be mounted between P and BN terminals when applied under heavy cyclic load and frequent emergency stop scenarios.

Direct replacement can use identical CACR-SR15BE12G or other open-spec VS800 standard servo after parameter matching for corresponding motor. Check fastening condition of power terminals and CN1/CN2 connectors before every startup; clean radiator accumulated dust every three to six months to avoid overheat shutdown caused by poor heat dissipation. Full factory parameter reset is optional during maintenance, users can restore self-defined parameters after initialization operation.

Overheat alarm results from dust-clogged radiator, insufficient cabinet ventilation or prolonged overload; solve by cleaning cooling fins or lowering actual running load. Encoder fault occurs due to loose CN2 connector, damaged feedback cable or mismatched nonstandard motor; inspect wiring and replace matched incremental servo motor.

Deceleration overvoltage fault can be fixed by installing external braking resistor between P and BN terminals. Parameter write failure seldom appears in normal use; if occurred, check parameter range limitation or hardware abnormality. Overload protection activates from mechanical jamming or excessive payload; inspect transmission structure and reduce equipment load properly.

1 = Output overcurrent fault2 = Main circuit hardware abnormality3 = DC bus overvoltage protection triggered4 = DC bus undervoltage alarm activated5 = Drive internal overheat protection6 = Encoder disconnection fault7 = Motor continuous overload protectionA = Main CPU abnormal operation errorC = External emergency stop input effective