CACR-SR05BB1BS
CACR-SR05BB1BS is a standard general-purpose 0.5kW analog SERVOPACK from Yaskawa classic CACR-SR series, developed to cooperate with YASNAC VS-800 analog CNC control system for legacy Japanese CNC lathes and small processing equipment. It adopts BB-version mainboard hardware without OEM parameter lock, all internal servo parameters are fully editable and restorable to factory default settings. This driver matches USAREM / USAGED-05 series 500W servo motors equipped with 1000P/R incremental encoders, and executes speed, position and torque triple closed-loop control via ±10VDC analog command signals transmitted from the CNC host.
Description
1. Product Overview
CACR-SR05BB1BS is a standard general-purpose 0.5kW analog SERVOPACK from Yaskawa classic CACR-SR series, developed to cooperate with YASNAC VS-800 analog CNC control system for legacy Japanese CNC lathes and small processing equipment. It adopts BB-version mainboard hardware without OEM parameter lock, all internal servo parameters are fully editable and restorable to factory default settings. This driver matches USAREM / USAGED-05 series 500W servo motors equipped with 1000P/R incremental encoders, and executes speed, position and torque triple closed-loop control via ±10VDC analog command signals transmitted from the CNC host.
2. Model Code Explanation
CACR represents Yaskawa traditional AC servo amplifier series code. SR stands for analog control specification designed for VS-800 CNC with ±10VDC command input for three-loop motion control. 05 indicates rated output power of 0.5 kilowatt. BB means exclusive BB revision printed circuit mainboard, differing in internal circuit layout from BA, AY and AD series boards. Digit 1 denotes CN2 feedback port configured for 1000P/R incremental rotary encoder only. BS is dedicated motor matching specification without factory pre-locked parameters.
3. Electrical Specifications
Main circuit is powered by three-phase AC200V~230V, with allowable input voltage variation of +10%/-15% and applicable frequency at 50/60Hz. Control circuit uses independent single-phase AC200V~230V isolated power supply separated from main power source. Rated continuous output current is 4.2Arms, and short-term peak overload current reaches 11.0Arms within 3 seconds maximum overload period. The unit uses IGBT sine-wave PWM inverter structure and relies on natural air cooling without built-in cooling fan.
CN1 connector receives ±10VDC speed or position analog command from VS-800 controller, and also provides terminals for external torque limit signal, servo enable input, fault reset input and servo-ready contact output. CN2 is exclusively for A/B/Z phase pulse feedback of 1000P/R incremental encoder. The main terminal block includes ports for main power input, motor output, external regenerative brake resistor connection and protective earthing.
4. Environmental and Installation Requirements
Protection grade is IP20, and installation is restricted inside enclosed electrical cabinet only. Operating ambient temperature ranges from 0℃ to 55℃, storage temperature from -20℃ to 85℃. Relative working humidity shall not exceed 80%RH without condensation, and the installation location should stay away from corrosive gas, heavy dust and liquid splash. Maximum permissible installation altitude is 1000 meters above sea level. The servo is designed for standard DIN rail vertical mounting.
5. Core Features
Open universal firmware enables free adjustment of loop gains, electronic gear ratio and encoder setting values to fit varied mechanical loads, which is distinctly different from Y-suffix customized locked servo drives. Comprehensive protective functions cover overcurrent, overvoltage, undervoltage, internal overheat, encoder disconnection and continuous overload protection, with fault codes displayed on front digital indicator for convenient troubleshooting. BB-series unified outer dimension ensures interchangeability among most BB standard models after parameter matching.
6. Application Range
It is widely used as replacement spare part for maintenance of vintage VS-800-controlled Japanese CNC lathes and tapping machines, as well as small precision automation equipment retrofitting that requires ±10V analog control and 1000P/R incremental encoder feedback.
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