CACR-SR10BB1BM
CACR stands for Yasnac VS800 full digital AC Servopack series, specially developed for CNC machine feed axis driving control. SR supports three optional control modes including analog speed control, torque control and parameter configurable position control, users can switch working mode by modifying internal parameters. Number 10 represents rated matching servo motor power of 1.0kW with continuous rated output current at 7.6A RMS. BB means standard original mainboard PCB and standard cabinet structure without customized hardware modification. Digit 1 defines 200V grade AC input specification for main and control power supply. B refers to ±10VDC analog command input design without built-in differential pulse receiving circuit for external pulse position command. M indicates factory standard general firmware edition with fully open parameter access, no parameter write protection, all core gain and application parameters can be freely modified and factory reset is available, different from locked F version and customized H variant.
Description
1. MODEL CODE EXPLANATION
CACR stands for Yasnac VS800 full digital AC Servopack series, specially developed for CNC machine feed axis driving control. SR supports three optional control modes including analog speed control, torque control and parameter configurable position control, users can switch working mode by modifying internal parameters. Number 10 represents rated matching servo motor power of 1.0kW with continuous rated output current at 7.6A RMS. BB means standard original mainboard PCB and standard cabinet structure without customized hardware modification. Digit 1 defines 200V grade AC input specification for main and control power supply. B refers to ±10VDC analog command input design without built-in differential pulse receiving circuit for external pulse position command. M indicates factory standard general firmware edition with fully open parameter access, no parameter write protection, all core gain and application parameters can be freely modified and factory reset is available, different from locked F version and customized H variant.
2. ELECTRICAL RATINGS
Main circuit power input adopts three-phase AC200V to 230V, allowable voltage fluctuation ranges minus fifteen percent to plus ten percent, compatible with 50Hz and 60Hz industrial power grid. Control auxiliary power requires independent single-phase AC200V~230V separate wiring to avoid power disturbance from main circuit fluctuation. Continuous three-phase output rated current is 7.6A; the drive supports one hundred fifty percent overload lasting sixty seconds and three hundred percent peak overload within three seconds for rapid acceleration operation. Nominal DC bus voltage falls between DC280V and DC320V, P and BN spare terminals are reserved for external regenerative braking resistor installation under frequent high-load deceleration. This unit uses IGBT sine wave PWM modulation with maximum output frequency up to 300Hz for standard BM specification. Factory default feedback configuration matches 5000PPR incremental encoder for corresponding Yaskawa M series 1.0kW servo motor.
3. ENVIRONMENTAL AND INSTALLATION SPECIFICATION
Permitted operating ambient temperature ranges from zero degree Celsius to fifty-five degree Celsius; storage temperature spans minus twenty degree Celsius up to seventy degree Celsius. Working environment relative humidity is five percent to eighty percent without dew condensation, enclosure protection class is IP20 and vertical upright installation inside electrical cabinet is mandatory. Maximum allowed installation altitude is below one thousand meters above sea level, continuous high altitude application over this height needs power derating setting. The drive can bear vibration of 10Hz to 55Hz with 0.5mm single amplitude during running. Net weight of CACR-SR10BB1BM is around 2.4 kilogram, standard panel fixed mounting design.
4. CONTROL PERFORMANCE PARAMETERS
Speed adjustment ratio reaches 1 to 5000, full load steady speed fluctuation accuracy is controlled within plus and minus zero point zero one percent. Complete auto-tuning function is fully unlocked on BM model, users can execute motor parameter identification automatically after wiring completion to optimize control gain without factory restriction. Built-in digital notch filter suppresses mechanical resonance and low speed jitter during frequent start and stop running. Three control modes including position, speed and torque can be freely switched via parameter setting, all related mode parameters are editable without lock limit unlike BF locked version. CN2 feedback connector is designed exclusively for incremental encoder signal connection with standard five thousand pulse per revolution matching motor feedback signal.
5. TERMINAL AND INTERFACE DEFINITION
R, S, T terminals connect three-phase main AC input power; U, V, W terminals link three-phase power cable of matching servo motor; P and BN terminals are used for external braking resistor wiring to consume regenerative energy during rapid deceleration. CN1 is optically isolated I/O terminal block containing eight digital input channels and six relay output channels with universal standard signal definition, including servo enable signal, forward and reverse travel limit input, emergency stop input, servo ready output and fault alarm output; users can reassign partial I/O functions through parameter modification thanks to open BM firmware design. CN2 serves as dedicated encoder feedback connector for incremental encoder wiring. Onboard RS422 serial communication port follows Yaskawa proprietary protocol for online parameter reading, writing and real-time operating status monitoring.
6. MAIN FUNCTIONS AND PROTECTION ITEMS
Standard internal dynamic braking circuit is equipped for regular deceleration energy dissipation, external regenerative resistor is only required under continuous heavy cutting and frequent emergency stop working condition. Separated high speed and low speed gain parameters allow independent adjustment to improve low speed running stability and high speed dynamic response. Comprehensive protection functions cover overcurrent protection, DC bus overvoltage and undervoltage protection, drive overheat protection, encoder connection fault protection and motor overload protection. The servo automatically records latest ten sets of historical fault codes for later maintenance check and failure analysis. All fault alarm codes can be queried via panel or serial communication without parameter lock limitation.
7. APPLICATION AND REPLACEMENT INSTRUCTION
This BM standard servo driver is mainly matched with Yaskawa M series 1.0kW incremental encoder servo motor, widely applied on general CNC lathe, machining center and ordinary automation feeding axis equipment. Standard CACR-SR10BB1BM can directly replace same series BB1BM model, cannot interchange with BF locked parameter or H customized variant directly due to firmware difference and fixed I/O definition of special versions. When replacing drive unit, confirm matching motor encoder pulse resolution and power specification before power on test.
8. DAILY MAINTENANCE GUIDE
Check tightness of all power cable, motor cable and encoder connector terminals before every startup to prevent loose contact and short circuit fault. Clean radiator dust on cooling fin every three to six months to guarantee heat dissipation efficiency and avoid overheat alarm. Cut off all AC input power and wait more than fifteen minutes for internal DC bus capacitor full discharge before opening drive cover for inspection or maintenance to prevent electric shock hazard. Do not run the servo continuously when cabinet internal ambient temperature exceeds fifty-five degree Celsius.
9. BASIC TROUBLESHOOTING
Overheat alarm usually arises from blocked radiator dust accumulation, poor cabinet ventilation or long time continuous overloaded running. Encoder fault alarm mostly results from loose CN2 connector, damaged feedback cable or mismatched encoder resolution parameter setting. Overvoltage alarm frequently occurs under frequent heavy-load rapid deceleration; install external regenerative resistor between P and BN terminals to solve excessive bus voltage problem. If parameter writing failure appears, confirm parameter number validity; BM model has no factory write lock so core parameter modification failure rarely happens compared with BF type. Overload alarm triggers when long-term actual load exceeds rated motor capacity, reduce cutting load or check mechanical jamming of transmission structure.
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