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Yokogawa CDHD-4D52AAT-DM1A-045G
Model Number: CDHD-4D52AAT-DM1A-045G
Product Introduction:
The CDHD-4D52AAT-DM1A-045G is a 400W-class AC servo drive from Yokogawa’s SIGMA-7 series, designed for high-precision motion control applications. It drives Sigma-7 AC servo motors and provides advanced position, speed, and torque control with built-in safety functions.
Detailed content
Function Features:
- Three-control-mode operation: Position control, Speed control, Torque control
- Built-in absolute position detector (AAT = Absolute Position, A-type)
- Pulse train input command interface (differential line driver)
- Electronic gear function for flexible positioning ratios
- Built-in braking resistor connection (DM1A configuration)
- STO (Safe Torque Off) safety function compliant with IEC 61800-5-2 SIL3 / PL e
- Regenerative energy handling via built-in brake chopper
Technical Specifications:
| Parameter | Specification |
|---|---|
| Rated Output Power | 400 W (0.53 HP) |
| Input Power Supply | Single-phase 200–240 V AC (50/60 Hz) or Three-phase 200–240 V AC (50/60 Hz) |
| Rated Output Current | 2.4 A (per phase) |
| Control Mode | Position / Speed / Torque |
| Position Command Input | Pulse train (differential line driver), max 4 Mpps |
| Position Resolution | 131,072 pulses/revolution (17-bit) |
| Feedback Device | Absolute encoder (17-bit, multi-turn) |
| Braking Resistor | Built-in (external connection via 045G connector) |
| Protection Rating | IP20 (front panel), IP00 (terminal section) |
| Operating Temperature | 0°C to +45°C (no derating), -10°C to +55°C (with derating) |
| Cooling Method | Forced air cooling (built-in fan) |
| Dimensions (W×H×D) | 65 × 190 × 186 mm (approx.) |
| Weight | Approximately 1.2 kg |
| Compliance Standards | UL 508C, CE Marking, RoHS Directive |
Material Composition:
- Housing: Aluminum alloy die-cast with black anodized finish
- Terminal block: PA66 (Nylon 66) with glass fiber reinforcement
- Connectors: Gold-plated contacts for signal terminals
- PCB: FR-4 epoxy glass laminate with conformal coating
Structure Characteristics:
- Front-panel LED indicators: Power, Ready, Alarm, Busy
- Top-mounted connector for motor power and encoder connection
- Bottom-mounted terminal block for control signals and power input
- Cooling fan mounted on rear panel
- DIN rail mounting compatible (35 mm rail)
Working Principle:
The servo drive receives pulse train commands from the motion controller (PLC or CNC). An internal DSP (Digital Signal Processor) calculates the required motor current using vector control algorithm (FOC – Field Oriented Control). The IGBT power module (6-switch inverter) converts DC bus voltage to three-phase AC with variable frequency and amplitude. The absolute encoder on the motor shaft provides real-time position feedback. The drive continuously compares command position with actual position and adjusts motor torque to minimize following error. STO function disables torque output via hardware-level safety circuit.
Advantages & Highlights:
- High-resolution 17-bit absolute encoder eliminates need for homing after power-off
- Compact 400W design saves panel space compared to competitive products
- SIL3/PLe safety rated without external safety relay
- Electronic gear function allows flexible mechanical ratio configuration (1/1 to 1/10,000)
- Built-in brake chopper handles regenerative energy without external components
Applicable Industries:
- Semiconductor manufacturing equipment (wafer steppers, bonders)
- Pick-and-place machines (electronics assembly)
- CNC machine tools (lathes, milling machines)
- Packaging machinery (labeling, sealing, filling)
- Printing presses
- Robotic systems (articulated robots, SCARA)
- Textile machinery
Installation Requirements:
- Mount on DIN 35 mm rail or flat vertical surface with screw fixation
- Maintain minimum 50 mm clearance on top, bottom, and sides for airflow
- Connect motor power cable using shielded twisted-pair cable, max length 50 m
- Connect encoder cable using double-shielded cable, max length 20 m
- Ground the drive chassis to earth ground with wire gauge ≥ 3.5 mm² (AWG 12)
- Install external electromagnetic contactor for main power disconnect
Usage Precautions:
- Do not operate the drive with the front cover removed (exposed high-voltage terminals)
- Verify motor rated voltage matches drive output before first energization
- Do not exceed 4 Mpps pulse input frequency (damages input circuit)
- Braking resistor must be connected when deceleration time is < 0.5 seconds
- Ambient temperature must not exceed 55°C (permanent damage to IGBT module)
- Condensation prevention heater required for operation below 0°C
