1. Product Brief Introduction
CACR-PR05AA4AH is discontinued DIN rail rack-mounted digital AC servo driver of YASKAWA classic CACR-PR series with rated power 0.5kW, 200V voltage class, developed for matching USA-series incremental encoder servo motors. It adopts integrated power & control board compact layout with front digital display and status indicator lamps for real-time operation monitoring and fault code inquiry. Equipped with built-in independent positioning control circuit, it can realize standalone point-to-point positioning after matching CPCC-PP100 dedicated positioning module without external PLC or pulse controller. Full-range hardware protection circuit is embedded inside the unit to avoid equipment damage under abnormal working conditions. Mainly used as original replacement spare for legacy imported automation production lines, old CNC machine tools and special processing equipment maintenance & renovation.
2. Model Code Definition
CACR: YASKAWA standard code for AC servo amplifier series
PR: Rack-mounted servo type with built-in positioning function, standard DIN35 rail installation specification
05: Rated output power = 0.5kW
AA: Three-phase AC200V~230V power input specification, standard cabinet installation hardware layout
4: Encoder matching code, compatible with USA-series servo motor equipped with 1500P/R incremental encoder
AH: Exclusive hardware revision, terminal definition and customized internal protection configuration of this specific model
3. Technical Parameters
Electrical Specifications
Rated input power: 3-phase AC200V~230V, 50/60Hz; rated output power 0.5kW, rated output current 4.8A; control mode is sine-wave PWM vector control with dual closed-loop of speed loop + position loop; matched servo motor types: USAMED, USAFED, USASEM incremental encoder motors with 1500P/R resolution.
Environmental & Mechanical Specifications
Operating ambient temperature: -10℃ ~ +55℃; storage temperature: -20℃ ~ +60℃; working humidity 20%~80%RH without condensation, no corrosive gas and conductive dust; protection grade IP20 for 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 main power input, U/V/W for motor power output, PE for protective earth connection.
CN1 control connector: multi-channel digital DI (servo enable, fault reset, operation mode switch), digital DO (servo ready output, fault alarm output), ±10VDC analog speed command input terminal.
CN2 exclusive encoder connector: A/B/Z phase feedback signal interface plus 5VDC encoder power supply wiring port for motor feedback connection.
Communication
Built-in standard RS422 serial communication adopting YASKAWA proprietary private protocol; optional baud rates:4800bps /9600bps, applied for parameter modification and on-site equipment debugging. It does not support native Modbus or CANopen fieldbus; extended bus positioning function can only be realized via external CPCC-PP100 positioning module.
5. Core Functions
Dual-mode switchable control: supports independent speed regulation and external pulse position control, switching between two modes via CN1 external control terminals; after assembling CPCC-PP100 module, the driver executes fixed-point positioning automatically without upper control pulse signal input.
Comprehensive multi-protection system: overcurrent, overvoltage, undervoltage, overload, overheat, encoder disconnection and output short-circuit protection; once fault occurs, servo output shuts down immediately and corresponding fault code is displayed on front digital screen.
Automatic motor parameter auto-tuning: automatically identify motor electrical parameters to optimize low-speed running smoothness and dynamic response, reduce low-speed torque fluctuation.
Adjustable torque limit & built-in self-diagnosis: real-time running state self-inspection, customizable maximum output torque to prevent mechanical collision from abnormal overload.
6. Application Scenarios
It is widely used for feed axis drive of outdated imported CNC lathes and milling machines; fixed-position conveying control of food, pharmaceutical and packaging machinery; feeding and winding axis drive of textile production equipment; precision transmission mechanism control of electronic component assembling machines; spare part replacement and equipment upgrade of obsolete Japanese original automated production lines and small precision semiconductor processing legacy equipment.
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