CACR-SR05TZ6SFE
CACR stands for classic Yaskawa Yasnac VS800 full-digital AC SERVOPACK servo amplifier series. SR refers to general-purpose servo drive supporting switchable position, speed and torque control via parameter setup. 05 means rated matched servo motor power is 0.5kW. T denotes revision T main control board specially designed for analog command priority control circuit. Z represents built-in dedicated hardware for multi-turn serial absolute encoder together with integrated internal dynamic braking module; absolute position data is stored after power loss so homing operation is not required after restart. 6 indicates the 6th generation internal firmware version with OEM customized fixed I/O logic setting. The first S means CN2 feedback connector is exclusively for serial differential multi-turn absolute encoder signal reception. F defines analog ±10VDC as primary speed/torque command input, digital pulse command is not the main control source for this model. E stands for universal encoder compatible specification, supporting both incremental and absolute Yaskawa traditional SGM and USA series servo motors.
Description
1. MODEL CODE DEFINITION
CACR stands for classic Yaskawa Yasnac VS800 full-digital AC SERVOPACK servo amplifier series. SR refers to general-purpose servo drive supporting switchable position, speed and torque control via parameter setup. 05 means rated matched servo motor power is 0.5kW. T denotes revision T main control board specially designed for analog command priority control circuit. Z represents built-in dedicated hardware for multi-turn serial absolute encoder together with integrated internal dynamic braking module; absolute position data is stored after power loss so homing operation is not required after restart. 6 indicates the 6th generation internal firmware version with OEM customized fixed I/O logic setting. The first S means CN2 feedback connector is exclusively for serial differential multi-turn absolute encoder signal reception. F defines analog ±10VDC as primary speed/torque command input, digital pulse command is not the main control source for this model. E stands for universal encoder compatible specification, supporting both incremental and absolute Yaskawa traditional SGM and USA series servo motors.
2. ELECTRICAL SPECIFICATIONS
Main circuit input is three-phase AC200V~230V with allowable voltage fluctuation from -15% to +10%, compatible with 50Hz and 60Hz power supply. Independent single-phase AC200~230V terminals are available for separated control circuit power supply. Rated continuous output power is 0.5kW and rated continuous output current is 3.2A. The drive supports 300% peak overload current of 9.6A lasting maximum 3 seconds, and 150% overload can be sustained continuously for 60 seconds. Nominal DC bus voltage ranges DC280V~320V; P/N spare terminals are reserved for external regenerative braking resistor connection for heavy-load frequent deceleration working conditions. Main control command is ±10VDC analog signal for speed or torque setting; differential digital pulse positioning input is not equipped as standard main command interface.
3. ENVIRONMENTAL AND MECHANICAL PARAMETERS
Operating ambient temperature ranges from 0℃ to +55℃, short-term peak working temperature should not exceed 60℃; storage temperature spans -20℃~+70℃. Working relative humidity keeps between 5% and 80%RH without condensation. Protection grade is IP20 and vertical installation inside closed electrical cabinet is required only. Net weight is approximately 2.05kg; maximum applicable installation altitude is limited below 1000 meters above sea level. The unit can withstand vibration of 10~55Hz with 0.5mm single amplitude.
4. CONTROL PERFORMANCE
The servo adopts IGBT sine-wave PWM dual closed-loop control including speed loop and position loop. Speed adjustable ratio reaches 1:5000 with full-load steady-state speed accuracy controlled within ±0.01%. Primary control source is analog ±10VDC voltage signal; digital differential pulse serves as optional auxiliary position input only. CN2 port matches serial multi-turn absolute encoder to realize power-off position memory function. Built-in digital notch filter is available to suppress mechanical resonance and reduce equipment running vibration. Three control modes can be freely switched by modifying internal parameters; fixed firmware version 6 carries preset OEM parameters for matched original machine.
5. INTERFACE AND COMMUNICATION CONFIGURATION
R/S/T terminals are for three-phase main AC power input; U/V/W terminals connect three-phase power wiring of matched servo motor; P/N spare terminals are for external regenerative brake resistor wiring. CN1 is opto-isolated digital I/O terminal block with 8 input channels and 6 relay output channels following fixed OEM I/O definition, including servo enable, forward/reverse overtravel limit, home origin input, emergency stop, servo ready output and fault alarm output functions. CN2 is dedicated connector for serial absolute encoder feedback connection. Onboard Yaskawa proprietary RS422 serial communication interface is used for parameter reading, writing and real-time running status monitoring; optional expansion accessory supports Modbus-RTU bus networking with upper control PLC.
6. CORE FUNCTIONS
Three control modes including position, speed and torque can be switched flexibly, and electronic gear ratio setting supports multi-axis synchronous linkage for automation equipment. Automatic motor parameter identification function completes one-click measurement of motor resistance, inductance and rotor inertia to optimize closed-loop gain automatically and shorten field debugging period. Absolute position memory eliminates mandatory homing after power outage to improve production efficiency. Internal integrated braking circuit absorbs most regenerative energy generated during deceleration; external braking resistor is only required under heavy-duty frequent emergency stop scenarios. Segmented high/low speed gain parameters ensure smooth low-speed operation and fast high-speed dynamic response. The drive automatically stores latest 10 groups of historical fault codes for maintenance inquiry.
7. APPLICABLE SCENARIOS
This analog-controlled absolute encoder servo drive is mainly applied to customized small CNC auxiliary feed axes, special electronic component assembling equipment, miniature automatic feeding machinery and precision positioning automation devices which adopt analog voltage command control and require power-off position retention function.
8. OPERATION AND ROUTINE MAINTENANCE INSTRUCTIONS
Before power-on, inspect all power cables, absolute encoder wires and I/O signal wiring to eliminate short circuit, loose terminals and wrong connection risks. Complete motor parameter matching and load debugging according to actual mechanical condition. Keep cabinet ventilation unobstructed during operation, prohibit long-time continuous running when inner cabinet temperature exceeds 55℃ and avoid frequent repeated power on/off within short intervals. Conduct periodic maintenance every three to six months: tighten all terminal screws, inspect cable insulation aging and clean dust accumulated on drive heat sink and cabinet air duct. Cut off main AC power and wait no less than 15 minutes for full discharge of internal DC bus capacitor before any internal disassembly maintenance to prevent electric shock hazard. Cut off power and stop equipment immediately upon continuous fault alarm, then check servo motor, connecting cables and mechanical jamming before restarting operation.
9. BASIC TROUBLESHOOTING
Overheat alarm is usually caused by blocked heat sink, excessive ambient cabinet temperature or long-term overload running. Encoder fault alarm mostly results from loose CN2 connector or damaged absolute encoder feedback cable. Overvoltage fault appears under frequent rapid deceleration with heavy load; install external regenerative braking resistor on P/N terminals to solve the problem.
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