1. Product Introduction
CACR-SR15BC1KS-Y392 is OEM customized digital AC Servopack of YASKAWA Yasnac VS800 CACR-SR servo series, rated 1.5kW @ 200V grade, exclusively customized for dedicated CNC lathe/machining center and fixed automation production line. Suffix Y392 stands for factory pre-programmed locked customized firmware with fixed I/O allocation, fixed encoder matching parameters and write-protected core control gains, distinct from standard general CACR-SR15BC1KS without Y392 tag.
Model Code Definition
CACR: VS800 dedicated servo driver for CNC feed axis motion control;
SR: Dual command input design, supporting ±10VDC analog speed command + differential pulse position instruction;
15: Matched rated motor power 1.5kW;
BC: Custom revised main control PCB & peripheral circuit layout vs standard BB version;
1: Separated power design: independent main power + separate control power supply;
KS: Basic standard software version;
Y392: Exclusive OEM solidified custom firmware code, fixed encoder resolution, locked speed/position loop parameters, only compatible with Y392 designated incremental encoder servo motor; ordinary non-Y392 model cannot direct replacement unless official Yaskawa side rewrites Y392 dedicated firmware.
2. Electrical Specifications
Power InputMain circuit: Three-phase AC200V~230V, 50/60Hz, allowable voltage fluctuation: -15%~+10% of rated input voltage;
Control power: Independent single-phase AC200V~230V, isolated from main circuit power disturbance.
Output RatingContinuous rated RMS output current:11.7A; Overload specification:150% rated current sustainable for 60s, 300% peak overload limited within 3s during motor startup; IGBT sine-wave PWM modulation, max output frequency 300Hz; normal DC bus working voltage DC280V~DC320V; Terminals P & BN reserved for external regenerative braking resistor connection to consume regenerative energy in frequent deceleration & emergency stop scenarios.
Protection class IP20, only vertical cabinet mounting allowed, net weight approx 3.3kg; CN2 feedback port fixed for Y392-specified incremental encoder only, absolute encoder and backup battery circuit not supported.
Y392 Exclusive Custom FeatureCore parameters including encoder resolution, speed loop proportional/integral gains, default operation mode are locked by custom firmware and cannot be modified via local parameter menu; RS422 serial communication only supports real-time running data & fault history reading; parameter upload/download & batch edit functions are disabled by Y392 program lock, factory fixed default running mode = analog speed priority control.
3. Environmental & Installation Requirement
Working ambient temperature: 0℃~+55℃; Storage temperature: -20℃~+70℃;
Working humidity:5%~80%RH, no internal condensation inside casing;
Derate continuous output load when installation altitude over 1000m to avoid overheat protection;
Vibration tolerance:10Hz~55Hz, max single vibration amplitude 0.5mm;
Reserve ≥50mm ventilation gap on top & bottom inside electrical cabinet for heat dissipation;
Cut all AC input power and wait ≥15min for DC bus capacitor full discharge before disassembling casing or hot-plug CN1/CN2 connectors; powered plug/unplug strictly forbidden.
4. Terminal & Connector Definition
R/S/T: Three-phase main AC input power terminals; U/V/W: Three-phase output wiring to matched servo motor; P-BN: External regenerative brake resistor wiring terminals;
CN1: Opto-isolated digital I/O port with fixed Y392 OEM pin definition, most I/O signal functions cannot be redefined via parameter setting;
CN2: Dedicated incremental encoder feedback interface only for original Y392 specified servo motor;
Front seven-segment LED: Displays real-time running status and unified VS800 series standard fault codes.
5. Built-in Protection Functions
Full-range protection list: Output overcurrent, DC bus overvoltage, DC bus undervoltage, internal driver overheat, encoder cable break detection, long-time motor continuous overload, main CPU abnormal protection. Latest 10 groups of fault data stored in nonvolatile memory, data reserved after power-off or manual fault reset.
Built-in dynamic brake circuit for light-load regular deceleration energy dissipation; external brake resistor must be fitted on P-BN under heavy cyclic load & frequent emergency stop application.
6. Replacement & Maintenance Rules
Only identical CACR-SR15BC1KS-Y392 can realize plug-and-play direct replacement; standard non-Y392 KS model or other variant drivers cannot substitute directly due to different locked Y392 firmware and fixed I/O definition; non-Y392 unit needs authorized supplier flash exclusive Y392 custom firmware before field replacement.
Check tightening of power terminals & CN1/CN2 connectors before each startup; clean radiator dust every 3~6 months to prevent overheat shutdown from poor heat dissipation; Full factory parameter initialization reset is prohibited on Y392 customized model, reset will erase locked OEM preset parameters and lead to motor abnormal running or machine breakdown.
7. Common Troubleshooting Guide
Overheat alarm: Caused by radiator dust clogging, insufficient cabinet ventilation or long-term overload; solve by cleaning cooling fins or reducing equipment actual load;
Encoder fault: CN2 loose plug, damaged feedback cable or mismatched non-Y392 motor; check wiring integrity or replace original matched incremental motor;
Deceleration overvoltage: Install external braking resistor between P and BN terminals;
Parameter write failure alert: Normal software protection when modifying Y392 locked core parameters, not hardware malfunction;
Continuous overload alarm: Mechanical transmission jamming or excessive payload; inspect mechanical structure and cut down running load properly.
8. Standard VS800 Series Fault Code Table
1 = Output overcurrent fault
2 = Main circuit hardware abnormality
3 = DC bus overvoltage protection trigger
4 = DC bus undervoltage alarm
5 = Internal servo overheat protection
6 = Encoder disconnection/cable break fault
7 = Motor continuous overload protection
A = Main CPU operation abnormal error
C = External emergency stop input signal activated
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