CACR-SR10BY1SF-C
CACR stands for Yasnac VS800 full digital AC servo amplifier designed for closed-loop feed axis control of CNC machine tools.
SR supports three selectable control modes including ±10VDC analog speed control, torque control and differential pulse position control configurable via internal parameters.
10 represents rated matched motor power 1.0kW with rated continuous output current 7.6Arms under 200V input class.
BY means exclusive PCB layout and housing structure with standard built-in dynamic braking circuit; internal power circuit differs from BB and BE versions.
1 defines power supply standard: three-phase AC200~230V main power plus separate single-phase AC200~230V independent control power supply.
S refers to single-encoder hardware configuration; CN2 connector only accepts incremental encoder feedback without compatibility for serial absolute encoder.
F is factory-locked firmware; most I/O and closed-loop gain parameters are partially write-protected with limited adjustable range compared with general G-type firmware.
-C denotes OEM custom specification with factory pre-fixed I/O logic and machine-tuned preset parameters, not standard universal export model.
Description
1. MODEL CODE DEFINITION
CACR stands for Yasnac VS800 full digital AC servo amplifier designed for closed-loop feed axis control of CNC machine tools.SR supports three selectable control modes including ±10VDC analog speed control, torque control and differential pulse position control configurable via internal parameters.10 represents rated matched motor power 1.0kW with rated continuous output current 7.6Arms under 200V input class.BY means exclusive PCB layout and housing structure with standard built-in dynamic braking circuit; internal power circuit differs from BB and BE versions.1 defines power supply standard: three-phase AC200~230V main power plus separate single-phase AC200~230V independent control power supply.S refers to single-encoder hardware configuration; CN2 connector only accepts incremental encoder feedback without compatibility for serial absolute encoder.F is factory-locked firmware; most I/O and closed-loop gain parameters are partially write-protected with limited adjustable range compared with general G-type firmware.-C denotes OEM custom specification with factory pre-fixed I/O logic and machine-tuned preset parameters, not standard universal export model.
2. ELECTRICAL SPECIFICATIONS
Main input power: three-phase AC200V~230V, permissible voltage deviation -15%~+10%, compatible with 50Hz/60Hz industrial power grid. Control power requires independent single-phase AC200~230V separate wiring to isolate surge interference from main circuit.Continuous rated output current:7.6Arms; 150% overload can run continuously for 60 seconds, 300% instantaneous peak overload is limited within 3 seconds for motor startup acceleration. Normal DC bus operating voltage ranges DC280V~DC320V; terminals P and BN are reserved for external regenerative braking resistor connection for frequent rapid deceleration and heavy-duty machining.The drive adopts IGBT sine-wave PWM modulation with maximum output frequency up to 300Hz.
3. INSTALLATION & ENVIRONMENT REQUIREMENT
Operating ambient temperature:0℃ ~ +55℃; storage temperature: -20℃ ~ +70℃. Working environment relative humidity 5%~80%RH without dew condensation; enclosure protection grade IP20 and vertical upright installation inside electrical cabinet is required.Max allowable installation altitude below 1000 meters above sea level; derated operation is necessary for mounting height over 1000m. Anti-vibration specification:10Hz~55Hz with 0.5mm single amplitude during continuous operation; net weight approx 3.0kg.
4. CONTROL PERFORMANCE AND FEATURES
Speed adjustment ratio reaches 1:5000, full-load steady speed deviation controlled within ±0.01%. Built-in digital notch filter effectively suppresses mechanical resonance and low-speed crawling during frequent start-stop cycles.Dual command input available: ±10VDC analog speed/torque signal and differential pulse position command signal; CN2 feedback port exclusively for incremental encoder due to S single-encoder hardware design.Auto-tuning function partially restricted by F and -C customized program: complete full automatic motor parameter identification is locked, only minor fine-tuning of partial gain parameters is allowed for slight on-site mechanical matching; most CN1 I/O definition fixed by -C OEM preset data and cannot be redefined freely via parameters.Onboard RS422 serial communication supports real-time runtime data reading and historical fault code inquiry; core locked OEM parameters cannot be modified or uploaded via communication cable.
5. TERMINAL AND CONNECTOR DESCRIPTION
R/S/T: three-phase main AC power input terminals; U/V/W: three-phase output terminals connecting servo motor power cable; P/BN: external regenerative brake resistor wiring terminals for regenerative energy dissipation during fast deceleration.CN1: optocoupler isolated digital I/O terminal block with fixed OEM signal definition under -C customization, users are prohibited to change input/output function allocation arbitrarily.CN2: dedicated connector only for incremental encoder feedback cable matching S single-encoder specification.
6. PROTECTION FUNCTIONS
Complete built-in protection includes 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 for maintenance check; OEM preset parameters will not be erased after power-off or fault reset operation.Built-in standard dynamic braking circuit handles regular deceleration energy consumption; external regenerative resistor must be fitted between P and BN terminals under continuous heavy cutting and repeated emergency stop working conditions.
7. REPLACEMENT INSTRUCTION
CACR-SR10BY1SF-C is exclusive OEM customized servo drive matched with designated CNC equipment and corresponding 1.0kW incremental servo motor. Standard CACR-SR10BY1SF without -C suffix cannot substitute directly because of mismatched locked firmware and fixed I/O parameters. Replacement requires identical full part number CACR-SR10BY1SF-C for plug-and-run installation.
8. ROUTINE MAINTENANCE GUIDE
Check tightness of power cables, motor cable and CN1/CN2 connectors before every startup to eliminate poor-contact-induced faults. Clean radiator fin dust every 3~6 months to guarantee heat dissipation efficiency and avoid overheat alarm.Cut off all AC power supply and wait over 15 minutes for internal DC bus capacitor full discharge before disassembling drive housing for maintenance to prevent electric shock hazard. Stop continuous running once cabinet inner ambient temperature exceeds 55℃. Arbitrary full factory parameter reset is forbidden to avoid loss of -C OEM customized data and subsequent machine malfunction.
9. BASIC FAULT TROUBLESHOOTING
Overheat alarm mainly arises from radiator dust clogging, poor cabinet ventilation or long-term overloaded running. Encoder fault alarm mostly caused by loose CN2 plug, damaged feedback cable or mismatched incremental encoder specification.Overvoltage alarm occurs during frequent heavy-load rapid deceleration; resolve by installing external regenerative resistor between P and BN terminals. Parameter write failure when modifying -C locked core parameters belongs to normal OEM protection design instead of drive hardware damage. Overload alarm triggers when actual mechanical load exceeds motor rated output; inspect stuck transmission mechanism or reduce processing load accordingly.
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