CACR-SR05BY1SG-E
CACR: Original classic digital AC SERVOPACK series of Yaskawa, full-digital closed-loop servo driver platform.
SR: Multi-mode general-purpose servo unit, supports speed / position / torque three control modes switchable via parameter setting.
Description
1. MODEL CODE DEFINITION
CACR: Original classic digital AC SERVOPACK series of Yaskawa, full-digital closed-loop servo driver platform.SR: Multi-mode general-purpose servo unit, supports speed / position / torque three control modes switchable via parameter setting.05: Rated matching motor power = 0.5kW (500W), corresponding rated output current specification.B: Mainboard hardware revision version B, internal power circuit standard layout.Y: Built-in internal dynamic regenerative braking circuit without mandatory external brake resistor for regular load.1: Input power grade, 3-phase AC200V~230V main power specification (50/60Hz).S: Differential 2500P/R incremental A/B/Z phase encoder feedback interface, compatible with Yaskawa R/S series standard servo motors.G: Standard digital I/O customized version with expanded terminal definition for machine tool dedicated signals.-E: Export specification version, compliant with CE electromagnetic compatibility standard, European market configuration.
2. TECHNICAL SPECIFICATIONS
2.1 Electrical Ratings
Main power input: 3-phase AC200V–230V, permissible voltage fluctuation ±10%, 50Hz/60Hz dual-frequency adaptive.Rated output power: 0.5kW; rated continuous output current: 3.2A; peak overload current: 9.6A (300% overload for 3s).Control auxiliary power: internal independent auxiliary power supply from main circuit, no separate control power terminal required.DC bus nominal voltage: DC280V~320V under rated input condition.
2.2 Environmental & Mechanical Data
Operating ambient temperature: 0℃ ~ +55℃; storage transit temperature: -20℃ ~ +70℃.Operating relative humidity: 5%~90%RH, non-condensation; Ingress protection: IP20, only for cabinet inner installation.Installation: vertical wall-mounted / DIN rail optional fixing; net weight approx 2.1kg; max working altitude ≤1000m.Vibration resistance: 10–55Hz, 0.5mm amplitude vibration tolerance.
2.3 Control Performance Parameters
Control algorithm: Full digital sine-wave PWM vector dual closed-loop (speed loop + position loop) control.Speed adjustable range: 1:5000; speed regulation accuracy ≤±0.01% under rated load.Position repeat positioning precision: ±1 encoder pulse; max external pulse command input frequency: 500kpps (5V differential line driver input).System response bandwidth: up to 450Hz, built-in notch filter for mechanical resonance suppression.
2.4 Complete Protection List
Overcurrent, overvoltage, undervoltage, drive overheat, motor overload, encoder wire breakage, regenerative overvoltage, CPU abnormal fault, power phase loss protection, with corresponding fault code display on 7-segment LED panel.
3. INTERFACE AND COMMUNICATION CONFIGURATION
3.1 Main Circuit Power Terminals
R/S/T: Three-phase AC main power input terminals; U/V/W: Servo motor three-phase power output terminals; P/N: spare external brake resistor expansion terminals (only for ultra-frequent high-load braking).
3.2 Signal Connectors
CN2 (PG port): Encoder dedicated connector, differential 5V A/B/Z phase incremental encoder input, matches 2500-line standard PG motor defined by code S.CN1 (Universal I/O terminal): 8-channel opto-isolated digital input, 6-channel relay-type digital output; configurable functions: servo enable, forward/reverse overtravel limit, home origin input, fault alarm output, servo ready signal, external emergency stop trigger.
3.3 Communication & Command Interfaces
Onboard RS422 serial port with exclusive Yaskawa proprietary communication protocol, used for parameter read/write, real-time operation status monitoring and fault data reading.
External position command: differential 5V pulse input (CW/CCW pulse or pulse+direction dual input format).
Optional accessory board supports Modbus-RTU bus communication for PLC networking control.
4. CORE FUNCTIONS
Three-control-mode free switching: Position closed-loop for fixed-point positioning, speed closed-loop for constant-speed transmission, torque closed-loop for tension control; electronic gear ratio setting available for multi-axis synchronous linkage.
Auto motor identification: one-click auto-tuning to detect motor resistance, inductance and rotor inertia, automatically optimize speed/position loop gain to shorten commissioning cycle.
Built-in integrated brake circuit: internal braking power module absorbs motor regenerative energy during deceleration, external braking resistor only needed for high-cycle heavy-duty stop conditions.
Multi-section segmented gain setting: independent high/low speed gain parameters to guarantee low-speed smooth running and high-speed fast dynamic response simultaneously.
Fault memory storage: automatically save latest 10 groups of historical fault codes for post-failure troubleshooting inquiry via front panel operation.
5. APPLICABLE SCENARIOS
Specially customized for small-medium precision automation equipment and retrofit of old CNC machine auxiliary feed axes: small numerical control tapping machine, electronic component automatic inserting equipment, miniature gantry positioning platform, textile yarn feeding machinery, labeling automatic conveyor system, small packaging cutting mechanism; suitable for low-power, high-precision fixed-positioning and stable constant-torque running occasions.
6. OPERATION AND ROUTINE MAINTENANCE INSTRUCTIONS
6.1 Pre-power-on Inspection
Check all power cable, encoder wiring and I/O signal wiring for short circuit, loose terminals or wrong wiring before energization; complete motor matching parameter setting and load gain debugging in accordance with actual mechanical load before formal trial run.
6.2 Daily Operation Specification
Keep electrical cabinet ventilation unobstructed, prohibit continuous running when cabinet inner ambient temperature exceeds 55℃; avoid frequent power on/off within short intervals.
6.3 Periodic Maintenance Rules
Every 3~6 months: tighten all terminal screws, inspect cable outer insulation for aging and cracking, clean dust accumulated on drive heat sink surface and cabinet air duct.All internal disassembly maintenance must cut off main AC power and wait minimum 15 minutes for DC bus capacitor full discharge to prevent electric shock hazard.Stop machine and cut off power immediately when continuous fault alarm occurs; inspect motor winding, connecting cables and mechanical jamming fault before restarting equipment.
7. BASIC TROUBLESHOOTING
Overheat alarm: blocked heat sink, excessive ambient temperature or long-time overload operation.Encoder error alarm: loose CN2 connector or broken PG feedback wire.Overvoltage alarm: frequent rapid deceleration with heavy load, add external regenerative braking resistor at P/N terminals.
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