CACR-SR07AY1SR-Y105
CACR refers to classic Yaskawa Yasnac VS800 full digital AC Servopack series designed for CNC feed axis and industrial automation equipment. SR stands for multi-mode servo drive supporting position, speed and torque control switchable via internal parameter configuration. 07 indicates the unit matches 0.7kW rated servo motor with continuous rated output current of 7.6A RMS. A represents standard base PCB framework. Y1 means custom modified mainboard hardware and dedicated basic firmware platform. S denotes dual command input design with both differential pulse and ±10VDC analog available for control instruction. R stands for rack mounting mechanical structure. Y105 is exclusive OEM customized suffix with factory pre-fixed I/O definition and locked machine-tailored parameters; core customized parameters are write-protected and cannot be reset to universal factory settings freely.
Description
1. Model Code Definition
CACR refers to classic Yaskawa Yasnac VS800 full digital AC Servopack series designed for CNC feed axis and industrial automation equipment. SR stands for multi-mode servo drive supporting position, speed and torque control switchable via internal parameter configuration. 07 indicates the unit matches 0.7kW rated servo motor with continuous rated output current of 7.6A RMS. A represents standard base PCB framework. Y1 means custom modified mainboard hardware and dedicated basic firmware platform. S denotes dual command input design with both differential pulse and ±10VDC analog available for control instruction. R stands for rack mounting mechanical structure. Y105 is exclusive OEM customized suffix with factory pre-fixed I/O definition and locked machine-tailored parameters; core customized parameters are write-protected and cannot be reset to universal factory settings freely.
2. Electrical Specifications
Main circuit power supply is three-phase AC200V~230V with permissible voltage fluctuation of -15% to +10%, compatible with 50Hz and 60Hz power source. Independent single-phase AC200V~230V terminals are arranged for separated control power input. Continuous rated output current is 7.6A; 150% overload can run continuously for 60 seconds while 300% peak overload is permitted for maximum 3 seconds. DC bus operating voltage ranges DC280V~320V, and P/N spare terminals are reserved for external regenerative braking resistor wiring under frequent heavy-load deceleration conditions. This model supports dual control command including differential digital pulse signal and ±10VDC analog voltage signal.
3. Environmental and Mechanical Parameters
Operating ambient temperature ranges from 0℃ to +55℃, and storage temperature is between -20℃ and +70℃. Working relative humidity keeps 5%~80%RH without condensation. Protection grade is IP20 and the drive needs rack-type vertical installation inside sealed electrical cabinet. Maximum applicable installation altitude is below 1000 meters above sea level, and the unit can withstand 10~55Hz vibration with 0.5mm single amplitude. Approximate net weight is 2.0kg.
4. Control Performance
The servo adopts IGBT sine-wave PWM dual closed-loop control of speed loop and current loop. Speed adjustment ratio reaches 1:5000 with full-load steady-state speed accuracy within ±0.01%. CN2 feedback port is designed for incremental encoder connection. Built-in digital notch filter suppresses mechanical resonance and equipment running vibration. Automatic motor parameter identification function works for basic parameter tuning, whereas Y105 customized gain, acceleration and deceleration parameters are locked by factory setting. Three control modes can be switched by adjusting non-locked available parameters.
5. Interface and Communication Configuration
R/S/T terminals connect three-phase main AC power input; U/V/W terminals link three-phase power cables of matched servo motor; P/N spare terminals are used for external regenerative brake resistor connection. CN1 is opto-isolated digital I/O terminal block with 8 input channels and 6 relay output channels following fixed Y105 OEM signal definition, covering servo enable, forward/reverse overtravel limit, emergency stop, servo ready output and fault alarm output functions. CN2 is exclusive connector for incremental encoder feedback wiring. Onboard RS422 serial port with Yaskawa proprietary communication protocol enables parameter reading, writing and real-time running status monitoring.
6. Core Functions
Three control modes can be switched flexibly and electronic gear ratio setup realizes multi-axis synchronous movement for automation devices. Internal integrated dynamic braking circuit absorbs most regenerative energy generated during deceleration; external brake resistor is only required for heavy-duty frequent emergency stop applications. Separated high and low speed gain parameters ensure stable low-speed running and fast high-speed dynamic response. The drive automatically stores latest 10 groups of historical fault codes for maintenance inspection. All Y105 preset parameters are optimized for designated OEM machine, random modification of locked parameters is not recommended.
7. Applicable Scenarios
This Y105 customized rack-mounted dual-command servo drive is exclusively matched with corresponding 0.7kW incremental servo motors for specified CNC auxiliary feed axes and rack-installed automatic production equipment. Replacement must adopt identical full part number CACR-SR07AY1SR-Y105.
8. Maintenance Instructions
Check all power cables, encoder wires and I/O wiring to eliminate short circuit and loose connection risks before power-on. Do not change locked Y105 factory parameters arbitrarily without mechanical modification of matched equipment. Keep cabinet ventilation smooth during operation, stop long-time continuous operation if internal cabinet temperature exceeds 55℃ and avoid frequent short-interval power cycling. Perform regular maintenance every three to six months: fasten loose terminal screws, check cable insulation aging and clear dust on drive heat sink. Cut off main AC power and wait more than 15 minutes for full discharge of internal DC bus capacitor before internal disassembly to prevent electric shock hazard. Shut down equipment immediately when continuous fault alarm occurs, then inspect servo motor, connecting cables and mechanical jamming before restart.
9. Basic Troubleshooting
Overheat alarm is usually caused by blocked heat sink, excessive cabinet ambient temperature or long-term overload operation. Encoder fault alarm mostly comes from loose CN2 connector or damaged incremental encoder feedback cable. Overvoltage fault occurs under frequent rapid deceleration with heavy load; install external regenerative braking resistor on P/N terminals to solve the problem.
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