CACR stands for Yasnac VS800 full digital AC servo amplifier designed for closed-loop feed axis control of CNC machine tools.SR supports three optional control modes including ±10VDC analog speed control, torque control and differential pulse position control configurable via internal parameters.10 indicates rated matched servo motor power 1.0kW with rated continuous output current 7.6Arms under 200V input grade.BZ refers to exclusive PCB layout and housing structure with upgraded feedback circuit; CN2 port supports both incremental encoder and serial absolute encoder feedback, different from BY single-incremental-only circuit, equipped with standard built-in dynamic braking circuit.1 defines power supply standard: three-phase AC200~230V main power plus separate single-phase AC200~230V independent control power supply.S means single feedback channel hardware with one dedicated CN2 encoder connector.F is factory-locked firmware; most speed/position loop gain and partial I/O parameters are write-protected with limited adjustable range, full factory parameter reset is restricted. No -E or -C suffix means it is neither general export version nor fixed OEM customized dedicated model.

Main input power: three-phase AC200V~230V, allowable voltage fluctuation -15%~+10%, compatible with 50Hz/60Hz industrial power grid. Control power needs independent single-phase AC200~230V separate wiring to isolate surge interference from main circuit.Continuous rated output current:7.6Arms; 150% overload can continuously run for 60 seconds, 300% instantaneous peak overload 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 wiring for frequent rapid deceleration and heavy-duty machining.The drive adopts IGBT sine-wave PWM modulation with maximum output frequency up to 300Hz.

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 mandatory.Max allowable installation altitude below 1000 meters above sea level; derated continuous operation is required when mounted over 1000m elevation. Anti-vibration standard:10Hz~55Hz with 0.5mm single amplitude during stable operation; net weight approx 3.1kg.

Speed adjustment ratio reaches 1:5000, full-load steady speed deviation controlled within ±0.01%. Built-in digital notch filter suppresses mechanical resonance and low-speed crawling during frequent start-stop cycles.Dual command input available: ±10VDC analog speed/torque signal and line-driver differential pulse position signal; CN2 feedback port can switch between incremental and serial absolute encoder type via internal parameter setting due to BZ upgraded hardware.Auto-tuning function is partially restricted under F firmware: complete full automatic motor parameter identification is locked, only minor fine-tuning of partial gain parameters is available for slight on-site mechanical matching; CN1 I/O definition follows factory default setting, partial signal assignment parameters cannot be modified freely.Onboard RS422 serial communication supports real-time runtime data reading and historical fault record inquiry, locked core parameters cannot be rewritten via communication port.

R/S/T: three-phase main AC power input terminals; U/V/W: three-phase power output connecting servo motor stator cable; P/BN: external regenerative brake resistor connection terminals for extra energy dissipation during repeated fast deceleration and emergency stop.CN1: opto-isolated digital I/O terminal block with fixed factory default signal definition, partial I/O functions are locked against arbitrary redefinition.CN2: multi-purpose encoder feedback connector compatible with incremental or serial absolute encoder wiring according to actual matched motor specification.

Complete built-in protection items: overcurrent protection, DC bus overvoltage/undervoltage protection, drive overheat protection, encoder disconnection protection, motor overload and stall protection, main circuit phase-loss protection.Embedded internal small dynamic braking resistor for regular deceleration energy absorption; external regenerative resistor must be installed between P and BN terminals under long-time heavy-load frequent braking working condition. The drive automatically stores latest 10 groups of historical fault codes for maintenance troubleshooting; F-version locked parameters will not be cleared after power failure or fault reset operation.

CACR-SR10BZ1SF cannot be directly substituted by BY series servo due to different encoder feedback hardware design; replacement requires identical full part number CACR-SR10BZ1SF for normal plug-and-run operation. Standard general G firmware models need parameter readjustment after replacement.

Check wiring tightness of power cables, motor cable and CN1/CN2 plugs before every startup to eliminate poor-contact-triggered alarms; clean radiator fin dust every 3~6 months to guarantee heat dissipation efficiency and avoid overheat shutdown.Cut all AC power supply and wait minimum 15 minutes for internal DC bus capacitor full discharge before opening drive casing for maintenance to prevent electric shock hazard. Random full factory parameter reset is not recommended to avoid losing factory preset matching parameters.

Overheat alarm mainly caused by radiator dust clogging, poor cabinet ventilation or long-term overloaded running; encoder fault originates from loose CN2 connector, damaged feedback cable or mismatched encoder type selection between incremental and absolute.Overvoltage alarm during frequent fast deceleration can be fixed by installing external regenerative resistor on P-BN terminals; parameter write failure occurs when modifying F-version factory-locked core parameters, belonging to firmware protection instead of hardware breakdown; overload alarm triggers when actual mechanical load exceeds motor rated output, inspect transmission jamming or reduce machining cutting load accordingly.