Products Description
Yaskawa CACR-SR15SB1AF-Y78 AC Servo Drive

Technical Specifications
Model:CACR-SR15SB1AF-Y78
Brand:Yaskawa
Product type:SR series AC SERVOPACK servo drive (Y78 custom variant with AF encoder hardware)
Power rating:1.5kW
Input voltage:AC200-230V,single phase
Control mode:Pulse position control,vector speed & torque control
Rated output current:10A
Cooling:natural air cooling
Mounting:Panel mount
Operating temperature:0~55℃
Relative humidity:5~95% non-condensing
Weight:2.01kg
Certification:CE
System compatibility
CACR-SR15SB1AF-Y78 belongs to Yaskawa SR servo family,matched with corresponding 1.5kW USAREM servo motor. The AF hardware defines dedicated encoder interface,while suffix Y78 is factory customized firmware and modified I/O signal definition for original production machine. Widely used in chip mounters,precision X-Y positioning platforms and special automation equipment. This is a discontinued legacy servo amplifier for old production line maintenance spare replacement.
Function
CACR-SR15SB1AF-Y78 serves as high precision AC servo amplifier unit. It receives pulse position instructions from upper controller to achieve fast speed and torque adjustment. Built-in multi-level hardware protection to safeguard servo motor and drive. Y78 custom version comes with preloaded fixed parameters and optimized motion response curve to match original machine requirements.
Installation
Mount CACR-SR15SB1AF-Y78 on control cabinet panel. Wire power cable,motor cable and encoder feedback cable according to wiring drawing. Complete parameter setup and motor auto-tuning via Yaskawa servo software.
Interface
‑Power terminals for main power and motor power output
‑AF dedicated encoder feedback connector
‑Digital I/O terminal block for pulse command and alarm output
‑Front panel LED indicators for power,running and fault state
‑Onboard current loop processing and multi-point fault diagnosis circuit
Circuit feature
Compact rugged PCB layout,equipped with surge and ESD suppression circuit. Fast current loop response,stable positioning performance,good anti-interference performance for industrial cabinet environment. Custom firmware loaded for Y78 special variant.
Feature
CACR-SR15SB1AF-Y78 is obsolete Yaskawa SR series custom servo spare part. Typical failures include power board damage,encoder port breakdown,overload and overvoltage alarms. Check motor and cable integrity before replacement. Y78 customized variant cannot be directly substituted by standard CACR-SR15SB1AF without parameter validation.
Diagnostic
When overvoltage,overcurrent,overload,encoder signal loss or overheating occurs,the drive triggers corresponding alarm codes and sends fault signal to upper PLC or controller.

Built‑in function
Precision closed-loop position,speed and torque control,real-time encoder signal monitoring,multi-level hardware fault protection for servo motion system,used as customized servo amplifier spare replacement.
Product Brief
CACR-SR15SB1AF-Y78 is Yaskawa SR series 1.5kW AC SERVOPACK servo drive,Y78 custom modified version with AF encoder interface for dedicated semiconductor and automation machinery. Confirm motor matching and customized firmware before ordering. ESD protection required during handling and installation.