CACR-SR10SB1A/BF
CACR: Yasnac VS800 full digital AC servo drive designed for CNC feed axis closed-loop motion control.
SR: Multi-control platform supporting ±10VDC analog speed/torque and differential pulse position control selectable by internal parameters.
10: Rated matching 1.0kW servo motor; continuous rated output current 7.6Arms for AC200V input class.
SB: Unique PCB layout and housing structure with compact power circuit design, internal hardware differs from BB/BZ/BY series; equipped with standard onboard dynamic braking circuit.
1: Power specification: three-phase AC200~230V main power plus independent single-phase AC200~230V separated control power supply.
A: Command input specification: only ±10VDC analog speed/torque input, no built-in differential pulse receiving hardware.
/BF: F-type locked factory firmware variant; core loop gain, encoder and partial I/O parameters are factory pre-set and write-protected, full factory parameter reset function is restricted by software lock.
Description
1. MODEL CODE DEFINITION
CACR: Yasnac VS800 full digital AC servo drive designed for CNC feed axis closed-loop motion control.SR: Multi-control platform supporting ±10VDC analog speed/torque and differential pulse position control selectable by internal parameters.10: Rated matching 1.0kW servo motor; continuous rated output current 7.6Arms for AC200V input class.SB: Unique PCB layout and housing structure with compact power circuit design, internal hardware differs from BB/BZ/BY series; equipped with standard onboard dynamic braking circuit.1: Power specification: three-phase AC200~230V main power plus independent single-phase AC200~230V separated control power supply.A: Command input specification: only ±10VDC analog speed/torque input, no built-in differential pulse receiving hardware./BF: F-type locked factory firmware variant; core loop gain, encoder and partial I/O parameters are factory pre-set and write-protected, full factory parameter reset function is restricted by software lock.
2. ELECTRICAL SPECIFICATIONS
Main circuit input: three-phase AC200V~230V with allowable voltage fluctuation -15%~+10%, compatible with 50Hz/60Hz industrial power grid. Independent single-phase AC200~230V control power must be wired separately to isolate surge interference from main power loop.Continuous rated output current:7.6Arms; 150% overload runs continuously for 60 seconds, 300% instantaneous peak overload limited within 3 seconds for motor startup acceleration. Normal DC bus working voltage DC280V~DC320V; terminals P and BN reserved for external regenerative braking resistor connection for frequent high-speed deceleration and heavy-duty cutting operation.The drive uses IGBT sine-wave PWM modulation, maximum output frequency up to 300Hz, encoder matching parameters pre-locked under BF firmware setting.
3. INSTALLATION & ENVIRONMENT REQUIREMENT
Operating ambient temperature:0℃~+55℃; storage temperature: -20℃~+70℃. Working relative humidity 5%~80%RH without dew condensation; protection grade IP20, vertical upright installation inside electrical cabinet is required.Max permissible installation altitude below 1000m above sea level; continuous output derating required when installed over 1000m elevation. Anti-vibration standard:10Hz~55Hz with 0.5mm single amplitude during stable 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 suppresses mechanical resonance and low-speed crawling during frequent start-stop cycles.A specification only accepts ±10VDC analog command signal without pulse position input circuit; position function can be enabled via parameter but relevant core position parameters are locked by BF firmware.Auto-tuning function partially restricted: complete full automatic motor parameter identification is locked, only minor auxiliary gain fine-tuning available for slight on-site mechanical matching; CN1 I/O definition follows factory fixed setting of BF version and cannot be freely redefined via parameter modification.Onboard RS422 serial communication supports real-time runtime data reading and historical fault record inquiry; locked core BF parameters cannot be modified or overwritten via communication cable.
5. TERMINAL & CONNECTOR DESCRIPTION
R/S/T: three-phase main AC power input terminals; U/V/W: three-phase output terminals connecting servo motor stator cable; P/BN: external regenerative brake resistor wiring terminals for regenerative energy dissipation during repeated fast deceleration and emergency stop.CN1: opto-isolated digital I/O terminal block with fixed factory preset signal definition under BF firmware lock, users cannot arbitrarily change input/output function allocation.CN2: dedicated incremental encoder feedback connector, single incremental encoder hardware matching.
6. FULL PROTECTION FUNCTIONS
Complete built-in protection list: overcurrent protection, DC bus overvoltage/undervoltage protection, drive overheat protection, encoder disconnection protection and motor overload protection. The servo automatically stores latest 10 groups of historical fault codes for maintenance check; BF locked preset parameters remain intact after power-off or fault reset operation.Built-in standard dynamic braking circuit handles regular deceleration energy consumption; external regenerative resistor must be installed between P and BN terminals under long-time heavy-load repeated emergency stop working conditions.
7. REPLACEMENT INSTRUCTION
CACR-SR10SB1A/BF is fixed firmware special model; cannot directly substitute SB1AS-G general open-firmware version or other BB/BY/BZ series drives due to different hardware circuit and locked BF parameters. Only identical full part number CACR-SR10SB1A/BF supports plug-and-play replacement.
8. ROUTINE MAINTENANCE GUIDE
Check wiring tightness of power cables, motor cable and CN1/CN2 plugs before every startup to avoid poor-contact-triggered alarms; clean radiator fin dust every 3~6 months to guarantee heat dissipation and prevent overheat shutdown.Cut all AC power supply and wait over 15 minutes for internal DC bus capacitor full discharge before opening drive casing for maintenance to avoid electric shock hazard. Random full factory parameter reset is forbidden to prevent loss of BF factory preset matching parameters and machine abnormal operation.
9. COMMON FAULT TROUBLESHOOTING
Overheat alarm mainly caused by radiator dust clogging, poor cabinet ventilation or long-term overloaded running; encoder fault originates from loose CN2 connector or damaged feedback cable.Overvoltage alarm during frequent heavy-load rapid deceleration can be fixed by installing external regenerative resistor between P and BN terminals; parameter write failure when modifying BF locked core parameters belongs to firmware anti-write protection instead of hardware breakdown; overload alarm triggers when actual mechanical load exceeds motor rated output, inspect stuck transmission structure or reduce machining cutting load accordingly.
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