Sankyo W-L00960

Core Technical Specifications

• Input Power Supply: Single-phase AC 200–240V 50/60Hz
• Rated Output Current: 9.6 A continuous, peak current 28.8 A (300% overload for 3s)
• Supported Encoder Signal: 2500 line incremental TTL encoder, 17-bit absolute encoder
• Command Input Modes: Pulse/direction, CW/CCW pulse, RS485 serial communication
• Position Control Resolution: 0.001 mechanical degree per pulse
• Control Loop Response Bandwidth: Current loop 2kHz, speed loop 800Hz, position loop 300Hz
• Overload Protection Threshold: 150% continuous overload alarm, 300% instant overload shutdown
• Operating Temperature: 0°C ~ +50°C (cabinet forced air cooling recommended above 40°C)
• Storage Temperature: -20°C ~ +70°C
• Dimensions: 182mm × 110mm × 48mm, net weight 0.75kg
• Protection Class: IP20

Functional Features

1. Three fully digital closed-loop control architecture, high rigidity positioning without low-frequency vibration
2. Multiple pulse input formats compatible with all mainstream PLC pulse output modules
3. Built-in electronic gear ratio function, adjustable 1/10000 ~ 10000x to match mechanical reduction ratio
4. Real-time encoder wire break detection, immediate servo lock and fault code output once feedback loss
5. Integrated dynamic braking resistor interface, support rapid motor stop under high-speed load
6. Parameter copy function via front panel operation panel, one-click parameter migration between multiple drives
7. Multi-stage soft start/stop acceleration curve to eliminate mechanical impact on transmission mechanism
8. Complete fault code storage function, record last 20 fault events for troubleshooting traceability

Working Principle

1. Upper motion controller sends pulse positioning command or serial position target value to servo drive input terminal.
2. Internal DSP chip calculates target motor rotation angle via electronic gear ratio, compares target position with encoder real-time position feedback signal to generate position deviation.
3. Position deviation outputs speed command after position loop PI regulation; speed loop compares command speed with encoder speed feedback to output current command.
4. Current loop adjusts IGBT power module output three-phase AC current to servo motor stator winding to control motor torque, realizing precise speed and position tracking.
5. Diagnosis circuit continuously monitors DC bus voltage, output current and encoder signal; trigger servo disable and fault alarm when overvoltage, overload or encoder disconnection detected.

Structure & Material Composition

• Outer Housing: Cold-rolled steel sheet electrostatic spraying shell, side heat dissipation grille structure
• Main Control Board: FR4 multilayer PCB, surface conformal coating to resist cabinet oil mist and moisture
• Power Module: Integrated IGBT power stack with aluminum alloy heat sink for heat exchange
• Terminal Block: Copper gold-plated power and signal terminals, separate power/encoder/control signal wiring areas
• Operation Panel: LED digital display, physical parameter adjustment buttons, fault indicator LED lights

Installation Requirements

1. 35mm DIN rail vertical installation inside electrical cabinet, minimum 30mm vertical spacing between adjacent drives for heat dissipation
2. Install forced air cooling fan if cabinet ambient temperature exceeds 40°C; ambient temperature over 50°C will trigger drive over-temperature protection
3. Power input wiring use 1.5mm² copper cable; motor power cable and encoder signal cable must separate routing, shielded encoder cable single-end grounded
4. External dynamic braking resistor wiring length controlled within 1.5m to avoid surge voltage damage power module
5. Cabinet ground terminal connected to drive housing ground screw, ground resistance ≤ 1Ω
6. Terminal screw tightening torque 0.6–1.0 N·m to prevent heating from loose contact

Application Scenarios

Operation & Maintenance Precautions

1. Disconnect AC input power for at least 10 minutes before disassembly maintenance to discharge internal DC bus capacitor residual voltage
2. Do not connect absolute encoder power supply reversely, reverse voltage will permanently damage encoder chip
3. Regularly clean heat sink grille dust accumulation every 3 months; dust blockage causes over-temperature frequent alarm
4. If positioning jitter occurs, adjust position loop gain and low-pass filter parameters via front panel
5. Avoid installation environment with conductive metal dust; metal dust entering drive internal circuit will cause short-circuit burnout
6. Long-term standby power off recommended; continuous power on over 10,000 hours accelerates electrolytic capacitor aging