CACR-SR05AC1ER-Y
CACR-SR05AC1ER-Y is an OEM parameter-locked 0.5kW AC servo amplifier from Yaskawa legacy CACR-SR series, specially customized for YASNAC VS-800 CNC system and vintage Japanese CNC lathes and small machining centers. Its hardware is identical to standard universal CACR-SR05AC1ER, while suffix "-Y" denotes factory pre-fixed proprietary firmware with locked machine-specific parameters. Core parameters including servo gain and electronic gear ratio are write-protected at factory and cannot be arbitrarily modified or initialized; only identical -Y marked unit can serve as direct replacement to avoid positioning error or motor runaway. It is matched with USAREM-05 series 500W servo motors fitted with 1000P/R incremental encoders.
Description
1. General Overview
CACR-SR05AC1ER-Y is an OEM parameter-locked 0.5kW AC servo amplifier from Yaskawa legacy CACR-SR series, specially customized for YASNAC VS-800 CNC system and vintage Japanese CNC lathes and small machining centers. Its hardware is identical to standard universal CACR-SR05AC1ER, while suffix "-Y" denotes factory pre-fixed proprietary firmware with locked machine-specific parameters. Core parameters including servo gain and electronic gear ratio are write-protected at factory and cannot be arbitrarily modified or initialized; only identical -Y marked unit can serve as direct replacement to avoid positioning error or motor runaway. It is matched with USAREM-05 series 500W servo motors fitted with 1000P/R incremental encoders.
2. Model Code Explanation
CACR refers to Yaskawa traditional AC SERVOPACK series code. SR stands for triple-control hardware supporting speed, position and torque control with ±10VDC analog command input for VS-800 CNC. 05 means rated output power of 0.5kW. AC represents C-version mainboard with AC200V dedicated analog circuit design. Digit 1 is built-in feedback circuit for 1000P/R incremental encoder. E means incremental PG feedback specification and R indicates compatibility with USAREM-R type servo motors. Suffix -Y stands for OEM customized locked firmware with fixed parameters for designated machine tools.
3. Electrical Specifications
Main power input is three-phase AC200V~230V, 50/60Hz with ±10%/-15% tolerance; control power is supplied by independent single-phase AC200V~230V. Rated continuous output current is 4.2Arms and peak transient overload current reaches 11.0Arms. CN1 receives ±10VDC analog speed and position command from VS-800 controller; CN2 feedback port exclusively supports 1000P/R incremental encoders and excludes absolute encoder compatibility. The drive adopts natural air cooling with IP20 protection grade for cabinet-only installation. Operating temperature ranges from 0℃ to 55℃, storage temperature from -20℃ to 85℃, relative humidity ≤80%RH without condensation and maximum installation altitude below 1000 meters above sea level.
4. Key Product Features
All internal servo parameters of -Y customized firmware are factory locked, random parameter adjustment will trigger positioning drift, axis runaway or machine alarm. Comprehensive protection functions cover overcurrent, overvoltage, undervoltage, overheat, encoder disconnection, overload and regenerative circuit fault to guarantee stable long-term running. Compact rack-mounted structure enables easy cabinet installation and quick on-site maintenance replacement. Distinct from non-Y standard CACR-SR05AC1ER with fully editable universal firmware, this locked-Y variant cannot be substituted directly by standard model without parameter matching.
5. Application Range
Mainly used as original spare replacement for feed axes of aged Toyoda and other Japanese CNC machine tools equipped with YASNAC VS-800 CNC system, also for dedicated servo maintenance of customized precision automation equipment using ±10V analog control and incremental encoder feedback.
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