1. PRODUCT INTRODUCTION
CACR-SR15BE12M-Y8 is a OEM factory-locked customized 1.5kW 200V-class AC servo amplifier belonging to Yaskawa VS800 CNC feed drive series, hardware base identical to standard universal CACR-SR15BE12M, while suffix -Y8 denotes exclusive custom OEM firmware with parameter write lock, pre-fixed factory tuning parameters and fixed I/O definition for designated CNC machine manufacturer only. It is exclusively pre-configured for specified lathe/machining center feed axis, cannot freely modify core control parameters like standard open M-version unit, and only works matching original paired motor and host CNC system. SR structure supports dual command input: ±10V analog speed reference plus differential pulse position reference signal as basic hardware design.
Model Code Breakdown
CACR: VS800 dedicated CNC feed servo series code
SR: Dual instruction input hardware specification (analog speed + pulse position dual input channel)
15: Rated matching motor power = 1.5kW
BE: Standard mainboard hardware layout
2: Separated independent power supply for main power loop and control circuit
12M: Base M-series hardware platform
Y8: Special customized locked OEM firmware code, fixed parameter version for exclusive machine maker use only
2. MAIN ELECTRICAL SPECIFICATIONS
Power Input Rating
Main circuit input: 3-phase AC200V~230V, 50/60Hz, permissible voltage deviation +10%/-15% of rated voltage.
Control circuit adopts independent single-phase AC200V~230V isolated power supply, separated from main power to avoid surge interference to control logic. Rectified DC bus nominal voltage ranges DC280V~320V.
Output Performance
Continuous rated output current: 11.7Arms; overload capability: 150% rated current sustainable for 60s, peak 300% overload within 3s for acceleration startup. IGBT sine-wave PWM driving mode, maximum output frequency 300Hz, three-phase variable AC 0~230V output to servo motor.
Terminal & Feedback Configuration
R/S/T: 3-phase main AC input terminals; U/V/W: three-phase motor power output terminals; P-BN: external regenerative braking resistor connection terminals for frequent deceleration load.
CN1: opto-isolated digital I/O port, all input/output pin functions pre-locked fixed by Y8 OEM firmware, user cannot reassign I/O definition via parameter setting.
CN2: encoder feedback port, firmware limited to specified incremental encoder model defined by OEM; absolute encoder function disabled on Y8 customized drive by default, different from fully open standard 12M unit.
3. CUSTOMIZED Y8 FIRMWARE KEY FEATURES VS STANDARD CACR-SR15BE12M
Parameter write protection lock: Core parameters including position loop gain, speed PI constant, S-curve acceleration/deceleration and filter coefficients are pre-programmed and write-protected; end-user cannot edit or reset these core tuning items via panel or RS422 communication, only read access available for locked parameters.
Fixed single control mode: Y8 firmware fixed to exclusive position control mode as per OEM requirement, forbidden to switch to analog speed or torque control via parameter modification.
Fixed I/O logic: All CN1 input/output signal functions solidified in factory firmware, no free I/O remapping allowed to adapt different wiring layout.
RS422 communication restriction: Serial port only supports parameter reading, all parameter write operations blocked by OEM software lock; standard open M-version allows full read-write via serial communication.
Pre-set electronic gear ratio: Electronic gear value fixed at factory setting, parameter modification prohibited to guarantee original machine mechanical matching.
4. ENVIRONMENT & INSTALLATION SPEC
Operating ambient temperature: 0℃~+55℃; storage temperature: -20℃~+70℃. Working humidity 5%~80%RH non-condensing; derate output power when installation altitude over 1000m above sea level, indoor cabinet vertical installation with IP20 protection grade. Minimum 50mm reserved clearance on top and bottom of drive for radiator heat dissipation.
Maintenance safety requirement: Cut all AC input power and wait at least 15 minutes for internal DC bus capacitor full discharge before plug/unplug CN1 and CN2 connectors; hot plug under powered status is strictly prohibited.
5. INTEGRATED PROTECTION FUNCTIONS
Uniform VS800 full protection system includes output overcurrent protection, DC bus overvoltage/undervoltage alarm, power module overheat shutdown, encoder cable break detection, continuous motor overload protection and CPU abnormal fault protection. The drive stores latest 10 historical fault codes inside nonvolatile memory, fault data reserved after power cut. Built-in small internal dynamic brake resistor for light load regular stop; external brake resistor must be connected on P-BN terminal for heavy load and frequent emergency stop application.
6. APPLICATION & REPLACEMENT INSTRUCTION
Application Scope
Custom-fitted for specific brand CNC lathe and small machining center feed axis motion control, original matching equipment exclusive accessory only, cannot be used on general non-customized automation equipment directly.
Replacement Rule
Hardware fully compatible with CACR-SR15BE12M / CACR-SR15BE12G mechanically and electrically, but direct replacement with standard open M/G version will cause abnormal positioning, speed runaway or alarm due to mismatched unlocked parameters; only identical suffix Y8 spare part can realize plug-and-play replacement. If non-Y8 model is used for substitution, professional factory firmware rewrite to Y8 custom program is mandatory before commissioning.
7. STANDARD FAULT ALARM CODES (VS800 SERIES UNIFIED ALARM DEFINITION)
1: Output overcurrent fault
3: DC bus overvoltage protection trigger
4: DC bus undervoltage alarm
5: Drive internal module overheat shutdown
6: Encoder wiring disconnection error
7: Long-time continuous motor overload
A: Main CPU operation abnormal failure
C: External emergency stop signal input triggered
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