CACR-SR05BB1AM is standard non-customized 0.5kW analog SERVOPACK belonging to Yaskawa legacy CACR-SR series, designed to match YASNAC VS-800 analog CNC control system, compatible with USAM / USAGED-05 series 500W servo motors equipped with 6000P/R incremental A/B/Z encoder, which is the core difference versus AF suffix models fitted for 1000P/R encoder. This BB revision mainboard is universal standard hardware without OEM parameter lock; all internal servo parameters can be fully modified, backed up or reset to factory default values freely without firmware solidification restriction. It adopts ±10VDC analog command control to realize speed, position and torque three closed-loop control modes for traditional Japanese lathes and small machining centers.

CACR = Yaskawa classic analog AC servo amplifier series; SR = analog ±10V command input dedicated for VS-800 CNC host; 05 = rated continuous output power 0.5 kilowatt; BB = exclusive BB-version mainboard PCB layout differing from BA/AZ/AY hardware version; digit 1 = single-channel incremental encoder feedback port; AM = motor matching specification for 6000PPR high-resolution incremental encoder servo motor, replacing AF which is for 1000PPR low pulse encoder specification. No Y-suffix means no factory customized fixed parameter program.

Main power circuit input is three-phase AC 200V~230V, allowable voltage fluctuation +10%/-15%, input frequency fixed 50/60Hz. Control power adopts independent single-phase AC200~230V isolated power supply separated from main power loop. Rated continuous output current is 4.2Arms, transient peak overload current reaches 11.0Arms within maximum 3-second overload duration. Internal drive circuit uses full IGBT sine-wave PWM inversion control structure.CN1 connector receives analog speed/position ±10VDC command signal from VS-800 CNC controller, also reserves analog torque limit input terminal. CN2 dedicated feedback socket connects motor 6000P/R incremental encoder A/B/Z phase pulse signal. External terminal block contains terminals for external regeneration brake resistor wiring, servo ready contact output, servo enable input and fault reset digital signal input. Front panel single seven-segment digital tube displays running status and fault alarm codes for maintenance check.

The servo unit relies on natural convection heat dissipation without built-in cooling fan, enclosure protection grade IP20 and must be installed inside closed electrical cabinet only, outdoor open installation is forbidden. Standard working ambient temperature ranges 0℃~55℃; storage permissible temperature covers -20℃~85℃. Working environment relative humidity below 80%RH with no condensation, installation site should avoid corrosive gas, conductive dust and liquid splash pollution. Maximum allowable installation altitude is 1000 meters above sea level. Standard DIN vertical installation dimension is consistent with other BB05 series servo drives, overall net weight approx 1.5kg.

Complete multi-layer protection logic includes overcurrent protection, main circuit overvoltage/undervoltage protection, drive overheat protection, encoder signal disconnection alarm, continuous overload protection and regenerative resistor abnormal protection. Once fault triggers, front digital tube outputs corresponding alarm code for quick troubleshooting; common alarm code 1 stands for overcurrent failure, alarm code 2 represents main power circuit abnormal trip.

Mainly used for original spare replacement and maintenance of old Japanese CNC lathe, tapping machine and small machining center equipped with VS-800 numerical control system configured with 6000P/R pulse servo motor; also applicable to small precision automation equipment retrofitting requiring high-resolution encoder analog servo control. Cannot directly interchange with BB1AF model because of inconsistent encoder pulse count setting after parameter reset.

All gain parameters, electronic gear ratio, encoder resolution setting and acceleration/deceleration parameters are editable by users; after full factory reset operation, drive restores universal standard AM-type factory preset parameters instead of fixed OEM locked data, convenient for mechanical debugging and equipment modification.