1. Model Code Definition & Basic Overview

• SGDH: Standard Sigma-II Servopack driver platform

• 1A: Rated matching motor power = 11kW (15HP), 3‑phase 380~480V high-voltage specification

• D: Main circuit input: Three-phase AC380~480V (-15%/+10%), 50/60Hz (400V grade, different from 200V A-type)

• E: Universal control base, supports switchable Position / Speed / Torque three control modes

2. Core Electrical Specifications

2.1 Power Ratings

• Rated applicable motor output: 11kW / 15HP

• Main power input: 3Φ AC380~480V, 50/60Hz; Rated input current:32.7A, light-load input current:29.3A

• Continuous rated output current:28.1A RMS; Peak short-time output current:67.5A (max 3 seconds)

• 3‑phase output: AC0~480V, output frequency range:0~300Hz

• Auxiliary control supply: External DC24V ±10% independent power supply required for control circuit

• Cooling method: Built-in large-size forced cooling fan, cabinet-mounted heat dissipation

• Net weight: Approx.21.3kg

2.2 Control Performance & Functions

1. Three optional control modes: Pulse Position / Analog Speed / Analog Torque, parameter configurable

2. Position command: Differential/Open-collector pulse input, maximum input frequency up to 500kpps, programmable electronic gear ratio

3. Analog reference: ±10VDC analog signal for speed/torque command setting

4. Encoder interface: Compatible with 17-bit serial incremental encoder; optional backup-battery absolute encoder support

5. Communication: Standard RS485 for SigmaWin+ tuning software; expandable with optional fieldbus cards: MECHATROLINK‑I/II, DeviceNet, PROFIBUS‑DP via option slot

6. Built-in functions: Full auto motor parameter identification, automatic gain tuning, internal vibration suppression algorithm, integrated dynamic brake circuit

3. Environmental & Dimension Parameters

• Operating ambient temperature: 0℃ ~ +55℃; Cabinet internal temperature shall not exceed 55℃ when enclosed installation

• Storage temperature: −20℃ ~ +70℃

• Ambient humidity: ≤90%RH non-condensing, free from corrosive gas, explosive dust and liquid splash

• Vibration resistance: 10~55Hz, vibration acceleration ≤0.5G

• Overall dimension: H450 × W260 × D275mm

4. Installation & Wiring Requirements

1. Vertical metal panel mounting; reserve ≥50mm top/bottom clearance and ≥30mm left/right gap for ventilation and heat dissipation.

2. Cut off all AC input power and wait ≥15 minutes for internal DC bus capacitor full discharge before wiring or maintenance to prevent high-voltage electric shock.

3. Main terminals R/S/T connect 3‑phase 380~480V input; U/V/W three terminals connect matched 11kW servo motor; PE protective terminal must be reliably grounded to cabinet earth bar.

4. High-power motor power cable and shielded encoder/control signal cable must be routed separately to reduce EMI interference; all shielded signal cables implement single-end grounding.

5. Standard Commissioning Steps

1. Complete full wiring inspection to eliminate short-circuit, reversed wiring or loose terminals before power-on.

2. Power on for drive self-diagnosis; execute no-load auto-tuning to automatically identify motor winding resistance, inductance and encoder parameters.

3. Set target control mode via internal parameters; configure electronic gear ratio for position mode or speed loop gain for analog control mode.

4. Implement low-speed no-load jog test first; switch to formal loaded operation after stable trial running without abnormal alarm.

6. Common Fault Diagnosis

• OC Overcurrent Alarm: Check motor U/V/W winding short-circuit, cable damage or main circuit wrong wiring

• Encoder Fault: Inspect loose encoder connector, damaged shield wire or mismatched encoder wiring sequence

• UV Undervoltage Alarm: Abnormal 380~480V input voltage drop or insufficient power source capacity

• OH Overheat Alarm: Cooling fan failure, blocked ventilation duct or continuous long-term overload; clean internal dust and reduce mechanical load

  Fault reset: Power off completely and restart after fault root cause is fixed.

7. Periodic Maintenance Rules

• Clean cooling fan and internal accumulated dust every 3~6 months based on on-site working environment; retighten all power terminal screws regularly.

• For long-term storage over 12 months, perform 30min no-load preheating power-on before field commissioning.

8. Typical Industrial Applications