Technical Specifications:​

Brand:​ Yaskawa

Model:​ CACR-SR20TB0BM

Series:​ CACR-SR

Rated Power:​ 2.0 kW

Input Voltage:​ Three-phase 200 VAC to 240 VAC, 50/60 Hz

Rated Output Current:​ Configuration dependent; common records list 11 A, 18.8 A or equivalent 2.0 kW drive current

Control Modes:​ Position, speed, torque

Command Interfaces:​ Pulse train and ±10 V analog; Mechatrolink-II versions available according to suffix configuration

Encoder Feedback:​ Incremental encoder; absolute encoder supported on selected variants

Regenerative Braking:​ Internal braking transistor or internal resistor according to version; external resistor terminal provided on supported models

Speed Response:​ Approximately 600 Hz to 1.5 kHz depending on firmware and control mode

Protection Rating:​ IP20

Operating Temperature:​ 0°C to 45°C for Mechatrolink versions; 0°C to 50°C or wider according to analog/pulse variant

Mounting:​ Panel mount, vertical cabinet installation

Functional Features:​

Dual Command Support:​ Analog ±10 V and pulse train for PLC or CNC integration

Network Option:​ Mechatrolink-II deterministic communication on configured versions

Braking Energy Management:​ Internal regen circuit with external resistor expansion

Protection Functions:​ Overcurrent, overvoltage, undervoltage, overload, overtemperature, encoder error and regenerative fault protection

Application Scenarios:​ Packaging machines, printing rollers, material handling transfers, stamping automation, injection molding auxiliaries, palletizing axes and medium-load reciprocating motion systems.

Performance Parameters:​

Positioning Accuracy:​ Defined by encoder resolution, pulse input frequency and mechanical transmission

Speed Range:​ Wide ratio from low creep speed to rated motor speed

Overload Capacity:​ Short-duty peak current according to selected drive current rating

Material Composition:​

Housing:​ Cold-rolled steel or coated metal enclosure on selected versions; aluminum fin heatsink

Power Module:​ High-power IGBT inverter

Control Board:​ Multilayer FR-4 with EMC filtering

Cooling:​ Natural convection, fin heatsink or fan-assisted cooling according to variant

Structural Features:​ Vertical-mount servo unit, front status LEDs or operator panel, separated power terminal block, encoder connector, control signal terminals, regenerative resistor terminal and network optical port on Mechatrolink versions.

Working Principle:​ Three-phase AC input passes through EMC filtering and rectification to produce a DC bus. The inverter stage generates PWM three-phase output according to position, speed or torque commands. Encoder feedback closes the servo loops. During deceleration, regenerative energy is absorbed by the internal transistor and resistor network, or diverted to an external resistor.

Installation Requirements:​ Mount vertically in a ventilated cabinet with top and bottom clearance; Mechatrolink versions require approximately 100 mm top clearance, analog/pulse versions require at least 60 mm depending on cooling design. Supply three-phase 200 VAC to 240 VAC through a properly sized breaker. Use shielded motor power and encoder cables. Separate power and signal routes.

Usage Notes:​ Confirm whether the unit is analog/pulse or Mechatrolink before installation because command wiring differs. Perform motor parameter autotuning before load operation. Validate braking resistor sizing for high-inertia or frequent deceleration. Inspect cooling fan, filters and terminals on a scheduled basis.