CACR-SR10SB1AF-Y118
CACR stands for Yasnac VS800 full digital AC servo amplifier for closed-loop feed axis control of CNC machine tools.
SR supports three optional control modes: ±10VDC analog speed control, torque control and parameter-activated position control.
10 represents 1.0kW rated matching motor with continuous rated output current 7.6Arms under AC200V class input.
SB denotes compact PCB and housing structure equipped with built-in standard dynamic braking circuit, different from BB/BY/BZ series internal layout.
1 defines power supply specification: three-phase AC200~230V main power plus independent single-phase AC200~230V separate control power supply.
A means only ±10VDC analog speed/torque command input; no built-in hardware for differential pulse position input.
F is factory locked firmware, core loop gain, encoder and partial I/O parameters are pre-programmed and write-protected at factory.
-Y118 is exclusive OEM customized suffix for specific machine tool model; factory fixes CN1 I/O allocation, loop gains and encoder matching parameters according to original equipment requirement; customized parameters are locked and full factory parameter initialization is restricted.
Description
1. MODEL CODE DEFINITION
CACR stands for Yasnac VS800 full digital AC servo amplifier for closed-loop feed axis control of CNC machine tools.SR supports three optional control modes: ±10VDC analog speed control, torque control and parameter-activated position control.10 represents 1.0kW rated matching motor with continuous rated output current 7.6Arms under AC200V class input.SB denotes compact PCB and housing structure equipped with built-in standard dynamic braking circuit, different from BB/BY/BZ series internal layout.1 defines power supply specification: three-phase AC200~230V main power plus independent single-phase AC200~230V separate control power supply.A means only ±10VDC analog speed/torque command input; no built-in hardware for differential pulse position input.F is factory locked firmware, core loop gain, encoder and partial I/O parameters are pre-programmed and write-protected at factory.-Y118 is exclusive OEM customized suffix for specific machine tool model; factory fixes CN1 I/O allocation, loop gains and encoder matching parameters according to original equipment requirement; customized parameters are locked and full factory parameter initialization is restricted.
2. ELECTRICAL SPECIFICATIONS
Main input: three-phase AC200V~230V, allowable voltage deviation -15%~+10%, compatible with 50Hz/60Hz industrial power supply. Control power requires independent single-phase AC200~230V separate wiring to isolate surge interference from main power circuit.Continuous rated output current:7.6Arms; 150% overload can continuously operate for 60 seconds, 300% instantaneous peak overload is limited within 3 seconds for motor startup acceleration. Normal DC bus operating voltage DC280V~DC320V; terminals P and BN are reserved for external regenerative braking resistor connection for frequent high-speed deceleration and heavy-load cutting.IGBT sine-wave PWM modulation is applied with maximum output frequency up to 300Hz; encoder parameters are locked by Y118 OEM program.
3. INSTALLATION & ENVIRONMENT REQUIREMENT
Operating ambient temperature:0℃~+55℃; storage temperature: -20℃~+70℃. Ambient humidity 5%~80%RH without condensation; protection grade IP20, vertical upright installation inside electric cabinet is mandatory.Full-load operation allowed below 1000m altitude; load derating is needed when installed over 1000m above sea level. Vibration resistance:10Hz~55Hz with 0.5mm single amplitude; net weight approx 3.0kg.
4. CONTROL PERFORMANCE & FEATURES
Speed adjustment ratio reaches 1:5000, full-load steady speed fluctuation ≤±0.01%. Built-in digital notch filter suppresses mechanical resonance and low-speed crawling during repeated start-stop operation.Only analog ±10VDC command is available due to A-type hardware without pulse input circuit; position control can be enabled via parameters but core position-related parameters are locked by Y118 customized firmware.Auto-tuning function is partially restricted: complete full automatic motor parameter identification is disabled; only minor fine adjustment of partial auxiliary gain is permitted for slight on-site mechanical matching. All CN1 I/O definition is fixed by Y118 OEM preset program and cannot be redefined arbitrarily via parameters.Onboard RS422 serial communication supports real-time running data reading and historical fault record query; locked Y118 customized parameters cannot be revised via communication line.
5. TERMINAL & CONNECTOR DESCRIPTION
R/S/T: three-phase main AC power input terminals; U/V/W: three-phase output terminals connected to servo motor power cable; P/BN: external regenerative brake resistor wiring terminals for energy dissipation during frequent rapid deceleration and emergency stop.CN1: opto-isolated digital I/O terminal block with fixed OEM signal definition under Y118 customization; users cannot modify I/O function allocation freely.CN2: exclusive connector for incremental encoder feedback cable.
6. PROTECTION FUNCTIONS
Complete built-in protection functions: overcurrent protection, DC bus overvoltage/undervoltage protection, drive overheat protection, encoder disconnection protection and motor overload protection. The servo automatically saves latest 10 groups of historical fault codes; Y118 preset OEM parameters remain unchanged after power cut or fault reset.Built-in standard dynamic braking circuit consumes energy under regular deceleration; external regenerative resistor must be mounted between P and BN terminals for long-term heavy-load and frequent emergency stop working conditions.
7. REPLACEMENT INSTRUCTION
CACR-SR10SB1AF-Y118 is dedicated OEM customized servo unit. Standard CACR-SR10SB1AF without Y118 suffix cannot be directly replaced due to mismatched locked parameters and fixed I/O logic; only identical full part number CACR-SR10SB1AF-Y118 supports plug-and-play replacement.
8. ROUTINE MAINTENANCE GUIDE
Check tightness of power cables, motor cable and CN1/CN2 connectors before each startup to avoid poor-contact induced faults. Clean radiator dust every 3~6 months to ensure heat dissipation and prevent overheat alarm.Cut off all AC power and wait over 15 minutes for full discharge of internal DC bus capacitor before opening drive housing for maintenance to avoid electric shock. Random full factory parameter reset is strictly forbidden to prevent loss of Y118 customized data and equipment abnormal operation.
9. COMMON FAULT TROUBLESHOOTING
Overheat alarm is usually caused by radiator dust accumulation, poor cabinet ventilation or continuous overload operation. Encoder fault arises from loose CN2 connector or damaged feedback cable.Overvoltage alarm during frequent fast deceleration can be solved by installing external regenerative resistor between P and BN terminals. Failure to write locked parameters is OEM firmware protection instead of hardware damage. Overload alarm occurs when actual mechanical load exceeds motor rated output; check mechanical jamming or reduce cutting load accordingly.
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