DUPLOMATIC DDC4-10-40020

Model Series Definition

• DDC4: Digital Direct Control series turret servo drive controller
• 10: Rated continuous output current 10 A
• 400: 3-phase AC main power supply rated 400 VAC
• 20: 20-bit resolver encoder feedback resolution hardware version

Technical & Performance Parameters

1. Power Input Specs
   • Main Power Input: 3-phase 400 VAC, 50/60 Hz
   • Auxiliary Control Power: 24 VDC, maximum 4 A, full electrical isolation from power stage
2. Drive Output Specs
   • Rated Continuous Output Current: 10 A
   • Peak Forced Current: 20 A (10-second maximum duration)
   • Encoder Feedback Interface: Resolver rotary transformer, 20-bit position resolution
3. I/O Interface Specs
   • Digital Inputs: 21 channels of 24 VDC opto-isolated signals (5 dedicated turret feedback inputs, 16 CNC command inputs)
   • Digital Outputs: 14 channels of 24 VDC opto-isolated signals (12 × 100 mA standard outputs, 2 × 2 A high-power valve drive outputs)
   • Analog Auxiliary Input: 1 channel 0–10 VDC speed override signal
4. Environmental Specs
   • Operating Temperature: 0°C to +55°C
   • Vibration Resistance: 10–150 Hz, amplitude 0.7 mm compliant with IEC 60068-2-6
   • Protection Class: IP20 cabinet mounting
5. Mechanical Dimensions & Weight
   • Size (W × H × D): 160 mm × 220 mm × 90 mm
   • Net Weight: 2.1 kg

Material Composition

• Enclosure: Cold-rolled steel shell with anti-oil spray coating for machine tool workshop environment
• Power Circuit Board: High-current thick copper FR4 PCB with tin immersion surface treatment
• Heat Dissipation: Die-cast aluminum integrated heat sink
• Optocoupler Isolation Devices: High-speed industrial optoelectronic isolators for signal/power isolation

Structural Features

• Vertical DIN rail rack mount integrated housing
• Front panel: Digital status display, turret position LED indicators, fault code display window, parameter adjustment buttons
• Upper terminal area: High-current 3-phase main power input/output copper terminals
• Lower terminal area: Spring-cage signal terminals for CNC I/O, resolver feedback, auxiliary valve control
• Internal isolated partition separates high-power drive circuit and low-voltage control signal circuit

Working Principle

Core Function Features

1. Automatic shortest rotation path search algorithm to minimize turret indexing cycle time
2. Dual position range configurable without hardware modification (supports simultaneous 8-station /12-station turret switching)
3. Automatic reference zero homing sequence with adjustable homing speed and torque
4. Full parity check for resolver position feedback signal to prevent mis-indexing faults
5. Comprehensive multi-level fault diagnosis with numerical fault code output to CNC system
6. Built-in PTC motor winding over-temperature protection, hardware overcurrent/overvoltage lockout
7. Support CANopen, Profibus DP, Modbus RTU industrial bus communication for CNC networking integration

Advantage Highlights

1. Integrated power drive + position feedback all-in-one unit, eliminating separate servo amplifier and signal conditioning modules
2. Oil-resistant enclosure coating adapts to cutting fluid mist environments of CNC machine workshops
3. Dual-station position configuration reduces spare controller inventory for mixed-spec turret production lines
4. High-speed opto-isolated I/O eliminates CNC signal interference from machine tool power circuits
5. Adjustable acceleration/deceleration ramps reduce turret mechanical impact and extend mechanical service life

Applicable Industries

Installation Requirements

1. Mount on 35 mm DIN rail inside IP54 machine tool electrical cabinet, reserve ≥80 mm bottom heat sink ventilation space
2. 3-phase main power cable minimum cross-section 2.5 mm² copper wire, with dedicated earth protective wire
3. Resolver feedback cable must be shielded twisted pair, maximum wiring length 15 m
4. Separate power drive wiring and CNC signal wiring into isolated cable ducts
5. Cabinet forced air cooling required for continuous full-load operation above 45°C ambient temperature

Operation & Maintenance Precautions

1. Do not disconnect resolver feedback cable during powered operation; immediate drive overcurrent lockout will occur
2. Clean aluminum heat sink dust and cutting fluid residue every 2 months to avoid over-temperature shutdown
3. Set maximum turret rotation speed below rated motor speed to prevent resolver signal distortion
4. Calibrate position zero point after mechanical disassembly of turret assembly
5. Avoid mounting adjacent to high-power inverter drives without EMI shielding partitions