1. Product Brief Introduction
CACR-PR03BCAF is a DIN rail rack-mounted digital AC Servopack from YASKAWA classic CACR-PR series, rated 0.3kW, 200V voltage class, discontinued legacy positioning servo driver matching USA-series incremental encoder servo motors. It integrates speed & position dual closed-loop control circuit inside compact unit; equipped with front digital display and status indicator lamps for fault monitoring. When combined with optional CPCC-PP100 dedicated positioning module, it realizes independent point positioning without external PLC or pulse controller. Widely used as original replacement spare for aging imported automation production lines, CNC equipment and special processing machinery, featuring stable dynamic performance and full-range built-in hardware protection against abnormal operation.
2. Model Code Definition
CACR: YASKAWA standard code for AC servo driver series
PR: Rack-mounted type with built-in fixed-position positioning function, DIN35 rail installation specification
03: Rated output power = 0.3kW
B: Three-phase AC200V input power specification, optimized hardware layout for cabinet rack assembly
C: Encoder matching specification, compatible with standard 1500P/R incremental encoder for USA servo motor
AF: Exclusive hardware revision, terminal definition and internal protection configuration of this specific model
3. Technical Parameters
Electrical Specifications
Rated input: 3-phase AC200V~230V, 50/60Hz; rated output power 0.3kW, rated output current 3.5A; adopts sine-wave PWM vector control, dual closed-loop of speed loop + position loop; matched motor models: USAMED, USAFED, USASEM with 1500P/R incremental encoder.
Environmental & Mechanical Specifications
Operation ambient temperature: -10℃ ~ +55℃; storage temperature: -20℃ ~ +60℃; working humidity 20%~80%RH non-condensing, no corrosive gas; protection grade IP20 (cabinet inner installation); max applicable installation altitude ≤1000m; fixed by standard DIN35 mounting rail.
4. Interface and Communication Configuration
Terminal Interfaces
Main power terminals: L1/L2/L3 for three-phase power input, U/V/W for servo motor power output, PE protective earth terminal.
CN1 control connector: multi-channel digital DI (servo enable, fault reset, mode switching), digital DO (servo ready, fault alarm output), ±10VDC analog speed command input port.
CN2 exclusive encoder connector: A/B/Z phase feedback signal + encoder DC power supply wiring port.
Communication
Standard onboard RS422 serial communication, YASKAWA proprietary private protocol only, optional baud rate:4800bps/9600bps, used for parameter setting and equipment debugging; no native Modbus/CANopen support, extended bus positioning via external CPCC-PP100 module only.
5. Core Functions
Dual closed-loop speed/position control: speed regulation and fixed point positioning two working modes, switchable via external CN1 control terminals; independent point-to-point positioning after docking CPCC-PP100 positioning module without upper controller pulse signal input.
Complete multi-protection system: overcurrent, overvoltage, undervoltage, overload, overtemperature, encoder disconnection, output short-circuit protection; once abnormal occurs, driver stops output and displays corresponding fault code on front digital screen.
Auto motor parameter auto-tuning function: automatically identify motor electrical parameters to optimize low-speed running smoothness and dynamic response, reduce speed fluctuation.
Built-in self-diagnosis and torque limit adjustment: real-time operating status monitoring, adjustable output torque upper limit to avoid mechanical collision caused by overload.
6. Application Scenarios
Mainly applied for feed axis driving of old imported CNC lathe/milling machine; transmission positioning control of food/pharma packaging machinery; spindle and feeding axis of textile processing equipment; precision conveying mechanism of electronic component assembling machines; spare part replacement & maintenance of obsolete Japanese original automated production line equipment, semiconductor small-size precision processing old equipment renovation.
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