1. Model Definition & Product Introduction

• SGDC: Compact small-power Sigma-I SERVOPACK series code (DC bus input structure different from AC-powered SGDB series)

• 05: Rated 0.5kW output power specification

• A: Standard pulse + analog dual control hardware base

• J: Special internal power circuit modification for OEM DC input matching

• Y: Factory customized modification including revised CN1 I/O pin definition, optimized built-in braking circuit

• 16: Exclusive locked customized firmware revision, factory pre-set fixed parameters matching designated host controller, unique setting different from standard SGDC-05AJA generic model.

2. Electrical Specifications

• Main DC Input Power: DC280~330V, rated input current 2.6A (external common DC bus power supply design instead of direct AC mains input)

• Continuous Output Rating: 0.5kW, three-phase AC 0~230V output, rated output current 4.2A; 300% short-time overload capacity for instantaneous impact load

• Control power: Independent low-voltage auxiliary power terminal separated from main DC bus; built-in customized dynamic braking circuit calibrated by Y16 firmware, no external brake resistor required under normal cyclic operation.

3. Control Mode & Interface Layout

1. Pulse Position Control: Accept open-collector / differential line driver pulse (CW/CCW dual-pulse or A/B quadrature pulse); electronic gear ratio factory pre-locked by Y16 customized firmware

2. Analog Speed/Torque Control: ±10VDC external analog reference input; loop gain and zero offset fixed exclusive factory setting for matched small precision equipment

3. MECHATROLINK-I PCB footprint reserved onboard, bus communication function permanently disabled by Y16 firmware and cannot be unlocked

• CN1 Connector: Custom-defined I/O terminal including Servo Enable, Fault Reset, Position Complete output, dry-contact fault relay alarm; pin assignment exclusive for original machine wiring logic, inconsistent with standard SGDC-05AJA

• CN2 Connector: Dedicated encoder connection port for incremental/absolute encoder wiring

• Onboard RS232 serial port: Connect SigmaWin software for parameter backup, real-time operation monitoring and historical fault data reading.

4. Full Protection Functions

5. Environmental & Mechanical Parameters

• Protection Grade: IP20, cabinet bolt installation only (DIN rail mounting not supported)

• Cooling: Natural convection passive cooling (no built-in cooling fan for compact design)

• Working ambient: Operating temperature 0℃~+55℃ non-condensing; storage temperature -20℃~+85℃; relative humidity 10%~90%RH without dew

• Certification: CE industrial safety compliance.

6. Commissioning & Replacement Guidance

• Support auto inertia identification and automatic gain tuning; front panel JOG jog function for standalone forward/reverse motor test without external controller; all fault logs saved in nonvolatile memory for maintenance troubleshooting

• Standard universal SGDC-05AJA cannot directly replace SGDC-05AJAY16 due to unique Y16 firmware I/O mapping, braking parameter and closed-loop gain; complete parameter rewrite and wiring modification are mandatory for cross-model substitution.

• Core Application: Small precision injection molding auxiliary axis, miniature CNC feeder and compact automated assembly equipment.

7. Difference vs Standard SGDC-05AJA

1. Standard SGDC-05AJA: Universal firmware, freely adjustable all parameters, standard universal CN1 pin definition for general automation

2. Y16 customized variant: Parameter partial lock, modified braking protection threshold, fully revised CN1 signal layout, gain optimized for small frequent reciprocating precision load of dedicated OEM equipment.