This unit is discontinued vintage analog AC SERVOPACK manufactured by Yaskawa Electric Japan, designed exclusively for Yasnac VS-800 CNC machine feed axis control. The rated output power is 100W (0.1kW), input power specification is single or three-phase AC200V, adopting pulse command position control mode and matching incremental encoder servo motors with 1500PPR resolution. Original mass production has been terminated globally, available products are tested used or refurbished spare parts for CNC equipment maintenance replacement only.

CACR-SR represents classic analog SERVOPACK platform dedicated to Yasnac VS series CNC servo drive; digit 01 stands for 100W rated output capacity; code A refers to standard main control PCB configuration; code E defines AC200V input power grade; digit 1 indicates external line-driver pulse train position command input; the second code E corresponds to 1500PPR incremental encoder feedback matching requirement; suffix R means standard terminal wiring layout and internal circuit setting without OEM customized firmware modification.

Rated input voltage range is AC180V~AC230V 50/60Hz, applicable for single-phase or three-phase industrial power supply; continuous rated output current matches USAM-01 and USAF-01 series 100W Yaskawa servo motor nominal operating current. Control mode adopts three closed-loop regulation including current loop, speed loop and position loop; command receiving mode is differential line driver pulse input sent from Yasnac VS-800 CNC main control board, supporting position command via pulse count accumulation.

Feedback interface is dedicated for 1500PPR incremental optical encoder mounted on matched servo motor, encoder signal is processed inside drive to complete closed-loop position feedback. Working ambient temperature ranges from 0℃ to +60℃, storage environment temperature is -20℃~+70℃; relative humidity shall not exceed 80% without dew condensation; maximum allowable installation altitude is 1000 meters above sea level, protection grade of the whole servo unit is IP20 for indoor cabinet installation only.

Main power terminal block R, S, U, V, W are respectively used for AC input power access and three-phase servo motor wiring; separate terminal pins are reserved for external dynamic brake resistor connection when needed. CN1 is 50-pin I/O control connector for CNC command pulse input, servo enable signal, fault alarm output, ready status feedback and auxiliary control signals; CN2 is dedicated 20-pin encoder connector connecting servo motor incremental encoder wiring for position feedback signal transmission.

All signal terminals adopt screw fixed wiring structure, no plug-in quick connector for power circuit. Before wiring, cut off all external power supply and confirm no residual voltage inside drive capacitance to avoid electric shock or internal component damage.

Complete power wiring and motor wiring inspection before switching on main power supply, check short circuit between power terminals and insulation status of motor cables. After energizing the unit, the single-digit seven-segment LED indicator on front panel lights up to display normal standby code; confirm no fault alarm code appears before proceeding servo jog test.

User adjustable internal constants (Cn parameters) are set via front panel operation buttons, all default factory parameters are preset for matching USAM/USAF-01 100W standard servo motor and Yasnac VS-800 CNC system. Parameter modification is only permitted by professional maintenance personnel; improper parameter setting will lead to overtravel, overload or servo locking fault. After finishing parameter adjustment, cut off power for three minutes to complete parameter memory saving inside drive storage chip.

Jog operation mode is used for motor no-load rotation test, switch to jog mode via panel setting to control forward and reverse low-speed rotation of servo motor, verify motor running smoothness and no abnormal vibration or noise.

Built-in full-range protection functions include overcurrent protection, overvoltage protection, undervoltage protection, continuous overload protection, overheat protection and encoder disconnection protection; once any abnormal status triggers protection, servo output will cut off immediately and corresponding fault code shows on front LED display.

Common fault codes and troubleshooting: Code 1 stands for overcurrent fault, check motor winding short circuit, power module breakdown or wiring wrong connection; Code 2 means overvoltage/undervoltage, inspect input power fluctuation and external power supply stability; Code A indicates encoder break error, verify CN2 encoder cable breakage or loose terminal contact; Code F represents overheat alarm, check internal cooling fan operation and heat sink dust accumulation status; Code C refers to control circuit abnormal fault, need inspection of internal control PCB and power auxiliary circuit. After fault removal, cut off drive power supply for 30 seconds to complete fault reset before restarting operation.

Regular maintenance items include cleaning heat sink surface dust and checking terminal screw fastening condition every three months; inspect cooling fan rotation status periodically to prevent overheat shutdown caused by fan stall. Strictly prohibit live wiring and disassemble drive internal circuit without professional certification; the internal main circuit capacitor retains residual high voltage after power-off, wait at least 10 minutes before opening housing cover for internal inspection or repair work.

Do not replace this servo unit with CACR-SR model carrying Y suffix customized version directly because Y-type variant has modified internal firmware and parameter preset for special machine configuration, non-Y standard AE model cannot match OEM customized CNC wiring and control logic normally.

Main matching equipment: X/Y/Z feed axis servo amplifier for Yasnac VS-800 series CNC lathe and small machining center; matched servo motor model: USAM-01, USAF-01 100W 1500PPR incremental encoder AC servo motor; prohibited to use on general non-Yasnac CNC or other brand numerical control equipment without parameter re-calibration and circuit modification.