CACR-SR03AB1ER-Y82 is an OEM customized discontinued analog SERVOPACK made by Yaskawa, specially configured for designated Yasnac VS-800 CNC machine feed axes with rated output power of 300W (0.3kW). The suffix -Y82 stands for exclusive factory custom specification including unique CN1 pin assignment and factory-locked control parameters. Direct replacement with standard non-Y or other Y-coded variants such as Y1 and Y3 is not available without wiring rearrangement and parameter rewriting.

CACR-SR: Vintage analog servo drive platform exclusively developed for Yasnac VS series CNC control system;03: Rated power 300W;A: Standard control PCB specification;B: Modified internal power circuit layout;1: Differential line-driver pulse train input for position command;E: Feedback circuit designed for 1500PPR incremental encoder;R: Standard housing and base structure;-Y82: No.82 OEM custom version with dedicated I/O logic, preset locked parameters and customized CN1 connector definition for specific machine manufacturer.

Input power supports single-phase or three-phase AC180V~AC230V, 50/60Hz. Compatible servo motors are Yaskawa USAM-03 and USAF-03 300W models equipped with 1500PPR incremental encoders. All core control parameters are pre-set and locked at factory to match original paired motors only. The drive adopts triple closed-loop control consisting of current loop, speed loop and position loop, and analog speed command function is disabled under Y82 customized setup, accepting differential pulse position command exclusively from CNC controller.

Operating ambient temperature ranges from 0℃ to +55℃, storage temperature ranges from -20℃ to +60℃. Relative working humidity shall not exceed 95% without condensation. Protection class is IP20 and installation must be inside electrical cabinet. Maximum allowable installation altitude is 1000 meters above sea level, and net weight is approximately 3.5kg.

Terminals R and S are for main AC power input, while U, V and W connect to three-phase servo motor windings. Extra spare terminals are reserved for external dynamic braking resistor connection when required.CN1 is a 50-pin control connector with fully customized pinout definition for Y82 version, differing completely from standard, Y1 and Y3 models in signal allocation for servo enable, ready feedback, fault output and CNC interlock signals. CN2 is a standard 20-pin encoder connector with universal pin layout consistent with base series products.

Key parameters including position loop gain and speed loop gain are write-protected by factory setting and cannot be modified via front panel buttons; only partial auxiliary function parameters are adjustable. Complete wiring inspection and short-circuit check are required before power-on. After energization, the single-digit seven-segment LED on front panel displays standby status if no fault exists. Cut off power for over three minutes to save modified auxiliary parameters after setup completion, and jog mode is available for no-load forward/reverse motor running test.

Integrated protection functions include overcurrent, overvoltage, undervoltage, continuous overload, overheat and encoder disconnection protection. Corresponding fault codes will be displayed once protection triggers:Code 1 for overcurrent fault; Code 2 for abnormal input voltage; Code A for encoder open circuit; Code F for internal overheat; Code C for control board malfunction. After eliminating fault causes, cut off power supply for no less than 30 seconds to complete fault reset before restarting equipment.

Conduct routine maintenance every three months, including cleaning dust on heat sink and cooling fan, and tightening all terminal screws. High residual voltage remains inside internal main circuit capacitors after power cut; wait more than 10 minutes before disassembling drive casing for internal maintenance. Only identical CACR-SR03AB1ER-Y82 can realize direct plug-and-play replacement. Standard CACR-SR03AB1ER, Y1 or Y3 variants require full CN1 rewiring and dedicated parameter programming to substitute Y82 unit.

This customized servo amplifier is originally equipped for specific OEM Yasnac VS-800 CNC lathes and small vertical machining centers. Modification on wiring and parameter calibration is mandatory if applied to non-Yasnac CNC systems.