CACR-SR15BE12F
June 05, 2026

CACR-SR15BE12F

CACR-SR15BE12F is a general-purpose standard full-digital AC Servopack under YASKAWA Yasnac VS800 servo series with rated 1.5kW at 200V voltage grade, widely used for standard CNC equipment and general automated machinery. This is non-OEM locked standard version without customized Y suffix firmware, all core control parameters and I/O functions are fully open for user modification and free configuration. Model code explanation: CACR represents VS800 servo series designed for CNC feed axis control; SR supports dual command input including ±10VDC analog speed signal and differential pulse position instruction; numeral 15 stands for 1.5kW rated matching servo motor capacity; BE refers to standard general main control PCB layout different from customized BC board; digit 2 indicates separated independent power supply configuration for main circuit and control circuit; F is standard universal base firmware edition with fully open adjustable parameters. This servo is compatible with standard Yaskawa incremental encoder servo motors of corresponding power, and can be replaced by other open-spec standard VS800 servo after proper parameter setup.

Description

1. Product Overview

CACR-SR15BE12F is a general-purpose standard full-digital AC Servopack under YASKAWA Yasnac VS800 servo series with rated 1.5kW at 200V voltage grade, widely used for standard CNC equipment and general automated machinery. This is non-OEM locked standard version without customized Y suffix firmware, all core control parameters and I/O functions are fully open for user modification and free configuration.
Model code explanation: CACR represents VS800 servo series designed for CNC feed axis control; SR supports dual command input including ±10VDC analog speed signal and differential pulse position instruction; numeral 15 stands for 1.5kW rated matching servo motor capacity; BE refers to standard general main control PCB layout different from customized BC board; digit 2 indicates separated independent power supply configuration for main circuit and control circuit; F is standard universal base firmware edition with fully open adjustable parameters. This servo is compatible with standard Yaskawa incremental encoder servo motors of corresponding power, and can be replaced by other open-spec standard VS800 servo after proper parameter setup.

2. Electrical Specifications

Main circuit input is three-phase AC200V~230V applicable for 50Hz and 60Hz power grids, allowable input voltage fluctuation ranges from minus fifteen percent to plus ten percent of rated voltage. Control power is supplied via independent single-phase AC200V~230V to avoid disturbance induced by main power voltage fluctuation.
Continuous rated output RMS current is 11.7A. Overload criteria: 150% rated current can continuously run for 60 seconds, and 300% peak overload is restricted within 3 seconds during motor startup. The driver adopts IGBT sine-wave PWM modulation with maximum output frequency reaching 300Hz. Nominal DC bus operating voltage falls between DC280V and DC320V, terminals P and BN are reserved for external regenerative braking resistor connection to consume regenerative energy during frequent deceleration and emergency stop operations. Protection grade is IP20 and only vertical cabinet installation is allowed, net weight of single unit is around 3.3kg. CN2 feedback port is designed for standard incremental encoder, absolute encoder is not supported under original hardware configuration.
Key standard feature of 12F version: all position loop gain, speed loop PI parameters, acceleration and deceleration settings and filter coefficients are fully editable by users via parameter menu; three control modes including speed, position and torque can be freely switched as required. RS422 serial communication supports full functions of parameter reading, writing, uploading and downloading.

3. Environmental and Installation Specifications

Operating ambient temperature ranges from 0°C to +55°C, storage temperature covers -20°C to +70°C. Working relative humidity remains 5%~80%RH without internal condensation on electronic components inside the unit. Continuous output load needs derating when installation altitude exceeds 1000 meters above sea level.
Allowable working vibration condition is 10Hz~55Hz with maximum single vibration amplitude of 0.5mm. Maintain over 50mm ventilation clearance on top and bottom inside control cabinet to guarantee sufficient heat dissipation airflow. Cut off all AC power supply and wait no less than 15 minutes for complete discharge of internal DC bus capacitor before opening casing or plugging CN1 and CN2 connectors; hot swapping of connectors under powered state is strictly prohibited.

4. Terminal and Connector Description

R, S, T terminals connect three-phase main AC input power cable; U, V, W terminals link three-phase power wiring to matched servo motor. P and BN terminals serve as wiring ports for external regenerative braking resistor installation.
CN1 is opto-isolated programmable digital I/O connector, all input and output pin functions can be freely redefined and modified through parameter configuration by users. CN2 is standard incremental encoder feedback interface matching regular specification servo motor. Front panel seven-segment LED displays real-time running status and unified VS800 series standard fault codes.

5. Built-in Protection Functions

Integrated comprehensive protection functions consist of output overcurrent protection, DC bus overvoltage protection, DC bus undervoltage protection, internal power module overheat protection, encoder wire break protection, long-time motor overload protection and main CPU abnormal operation protection. The latest ten sets of fault records are permanently stored in internal nonvolatile memory and will not be lost after power cut or manual fault reset.
Built-in dynamic brake circuit handles energy dissipation under light-load regular deceleration; external braking resistor must be wired between P and BN terminals when equipment runs under heavy cyclic load and frequent emergency stop environment.

6. Replacement and Maintenance Instructions

Direct replacement can adopt identical CACR-SR15BE12F or other open-parameter standard VS800 servo after corresponding parameter adjustment according to matched motor specification. Check tightness of power wiring and CN1/CN2 connectors before each equipment startup; clean accumulated dust on radiator cooling fins every three to six months to avoid overheat shutdown caused by poor heat dissipation. Factory full parameter reset is optional during routine maintenance, users can reload self-set parameters after initialization.

7. Common Troubleshooting Guidance

Overheat alarm is mainly caused by blocked radiator dust, insufficient cabinet ventilation or long-term overload operation; fix via cleaning cooling structure or reducing actual mechanical load. Encoder fault originates from loose CN2 connector, damaged feedback cable or mismatched nonstandard motor; inspect wiring and replace correct matched incremental servo motor.
Deceleration overvoltage fault can be solved by installing qualified external braking resistor between P and BN terminals. Parameter write failure rarely occurs under normal condition; once appearing, check parameter limit range or hardware abnormality. Overload protection triggers due to mechanical transmission jamming or excessive payload; inspect mechanical assembly and cut down driving load properly.

8. Standard Fault Code Definition

1 = Output overcurrent fault
2 = Main circuit hardware abnormality
3 = DC bus overvoltage protection triggered
4 = DC bus undervoltage alarm activated
5 = Drive internal overheat protection
6 = Encoder disconnection fault
7 = Motor continuous overload protection
A = Main CPU abnormal operation error
C = External emergency stop input effective


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