1. Product Overview
SGDC-50AJA-Y16 is a 5.0kW customized three-phase AC servo amplifier from Yaskawa Electric, derived from standard SGDC-50AJA base platform. The suffix Y16 stands for factory exclusive customization including revised digital I/O pin assignment, modified encoder connector definition and dedicated preset internal function parameters different from standard general specification. This servo drive matches 5kW Yaskawa permanent magnet synchronous servo motor for high-precision positioning, variable speed and constant torque control on special customized automation equipment, precision CNC machinery, automated production lines and multi-axis synchronous transmission devices.
2. Electrical Specification Parameters
2.1 Power Input & Output Rating
Rated matching motor power: 5.0kW
Main circuit input: Three-phase AC 200V~230V, 50/60Hz; internal DC bus operating voltage: 280VDC~330VDC
Rated input current: 25.2A; Max continuous three-phase output current: 41A
Output voltage range: Adjustable three-phase AC 0~230V
Cooling type: Natural air cooling with built-in integrated aluminum heat sink, no embedded cooling fan under rated continuous load
2.2 Ambient Working Conditions
Operating temperature range: 0℃ ~ +55℃; storage ambient temperature: -20℃ ~ +70℃
Relative working humidity: ≤90%RH, non-condensing; installation environment free of corrosive gas, combustible dust and liquid splashing
Vibration endurance: 10~55Hz operating frequency, allowable vibration acceleration ≤0.5G
2.3 Core Control Performance
Three switchable control modes: Position control, analog speed control, analog torque control, switched via internal parameter setting
Command input modes: Pulse train signal for position instruction; ±10VDC analog voltage signal for speed/torque command
Encoder interface: Compatible with standard incremental encoder; Y16 custom version changes partial pin definition of encoder port per factory custom specification
Built-in full auto-tuning function: Automatically identify motor winding resistance, inductance value and encoder zero offset to optimize servo system gain automatically
3. Y16 Customized Exclusive Description
Y16 is non-standard factory custom option: all digital input/output terminal functional definition is reallocated, several exclusive hidden function parameters are not recorded in original SGDC-50AJA standard user manual. Standard wiring layout cannot apply directly to this model; users must follow factory-attached supplementary parameter document for terminal wiring and parameter debugging.
4. Installation Specification
Mount the servo unit vertically on rigid metal mounting base. Reserve ventilation clearance: ≥50mm empty space on top and bottom sides, ≥30mm clearance on left and right sides for heat dissipation. Keep away from heat source and direct sunlight, fasten fixing screws tightly to prevent looseness caused by equipment runtime vibration. Separate power wiring and control signal wiring during cabling to reduce electromagnetic interference: power circuit adopts thick power cable, encoder and control I/O signals use shielded twisted-pair wire; reliably connect drive PE grounding terminal to equipment common ground bus.
5. Wiring & Commissioning Guidance
Cut off all input power and wait no less than 15 minutes for internal high-voltage capacitor full discharge before opening housing for wiring modification or maintenance to avoid electric shock accident. Complete all motor power, encoder and control wiring and verify terminal definition against Y16 custom specification before power-on. After power supply is switched on, execute full motor auto-tuning first before formal loaded operation. Real-time running data including DC bus voltage, output current, working temperature and fault alarm codes can be checked via front digital display or Yaskawa SigmaWin+ upper computer debugging software.
6. Fault Diagnosis & Troubleshooting
Overcurrent alarm: Mainly induced by motor coil short circuit, damaged motor power cable or internal power module breakdown; power off and inspect cable insulation status thoroughly.
Overvoltage alarm: Triggered by power grid voltage surge or rapid mechanical braking without matching external regenerative braking resistor; select matched braking resistance according to actual load inertia.
Overheat alarm: Caused by heat sink dust blockage or long-term overloaded operation; clean radiator dust and reduce actual operating load.
Encoder communication failure alarm: Check broken encoder cable, loose connector and customized Y16 pin wiring; re-plug connector or replace defective cable after fault removal.
Clear fault by power cycle or front panel reset button after troubleshooting; send unit for professional maintenance if identical fault recurs continuously after reset.
7. Periodic Maintenance Requirements
Clean accumulated dust on heat sink every 3~6 months based on on-site dust concentration to avoid heat dissipation obstruction; regularly retighten loose terminal screws to prevent poor-contact overheating failure. For long-term idle storage, store driver in dry room-temperature sealed environment; perform 30 minutes no-load power-on test before assembly and commissioning if storage period exceeds 12 months.
8. Typical Application Scope
Custom special automation fixtures, heavy-duty precision packaging equipment, special CNC processing machines, semiconductor automated assembling equipment and multi-axis synchronous transmission machines requiring Y16 customized I/O logic configuration.
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