SGDM-04ADA-RY165 is a customized 400W universal AC servo drive of Yaskawa Sigma-II series.

Matching servo motors are SGMAH-04A and SGMPH-04A series 400W Sigma-II servo motors with rated speed 3000rpm.

Main circuit power supply: single or three-phase AC200~230V, 50/60Hz, rated input current 5.2A. Three-phase adjustable AC output ranges from 0 to 230V with output frequency 0~300Hz; continuous rated output current is 3.5A and 300% short-time overload current is available within several seconds to absorb startup impact load.Control circuit gets power directly from main power source without separate external DC24V auxiliary supply. The drive adopts IGBT sine-wave PWM driving circuit, compatible with standard 20-bit serial incremental encoder and optional battery-backed absolute serial encoder via CN2 interface. Natural convection cooling without built-in fan, protection grade IP10 and compact DIN rail mounting structure.

Standard base configuration includes three main connectors: CN1 control terminal, CN2 encoder port and CN3 RS232 debug port.CN1 normally accepts differential or open-collector pulse for position instruction with maximum input frequency up to 500kpps and programmable electronic gear ratio, as well as ±10VDC analog reference for speed and torque control.RY165 customized modification: Original standard CN1 pin layout is replaced with OEM exclusive terminal definition for special signal assignment; part of input/output logic and default parameters are pre-set at factory to fit specific host controller requirements, general standard manual pin definition cannot be used directly for wiring.CN2 keeps standard encoder wiring definition for motor position feedback connection. CN3 RS232 port remains available for SigmaWin software connection to complete parameter reading/writing, auto-tuning and running status monitoring.Built-in multi-protection functions cover overcurrent, undervoltage, overvoltage, overload, overspeed, encoder disconnection and overheat protection; fault codes display on front panel LED and alarm status locks until power cycle reset.

Operating ambient temperature: 0°C ~ +55°C; storage temperature: -20°C ~ +85°C. Working relative humidity ≤90%RH without condensation; installation site must avoid corrosive gas, floating dust and liquid splash.Mount vertically on standard DIN rail; reserve over 25mm clearance at top and bottom for natural heat dissipation. Separate high-current motor power cable and low-voltage control/encoder cable during wiring; single-end grounding for all shielded signal cables to reduce electromagnetic interference.

Disconnect all power supply and wait more than 10 minutes for internal DC bus capacitor full discharge before wiring maintenance to avoid electric shock risk. Connect AC200~230V power to main input terminals; U/V/W terminals connect matched servo motor three power leads and PE terminal connects reliably to equipment protective ground. CN1 wiring strictly follows RY165 OEM customized drawing instead of standard specification.After full wiring inspection, power on for drive self-diagnosis without alarm. Complete no-load motor auto-tuning to identify motor parameters automatically, set control mode, electronic gear ratio and speed limit parameters plus RY165 exclusive preset parameters as required. Perform low-speed no-load jog test first, then load installation and formal running trial after stable no-load operation.

Overcurrent alarm is mainly caused by motor cable short-circuit, damaged winding or locked mechanical rotor; encoder fault results from loose CN2 connector or broken feedback wire; undervoltage occurs due to insufficient input voltage or loose power terminals. Eliminate failure causes then restart power to clear fault lock.Check terminal tightness and cable aging every six months. If stored idle over 12 months, run 30 minutes no-load pre-energization before formal loading operation to activate internal electrolytic capacitors. No fan maintenance needed for passive cooling design, keep surrounding installation space clean regularly.

Mainly used for customized precision automation equipment, special fixture indexing mechanism, small automated feeding machines and dedicated industrial machinery requiring RY165 special customized control interface.