Techsoft APS-DD-2

Product Overview

APS-DD-2 is a flat-panel full-digital direct drive servo driver dedicated to DDR torque motors, DDL linear motors and voice coil actuators. It integrates DSP motion control core to deliver high-bandwidth closed-loop control for ultra-precision positioning equipment requiring zero mechanical transmission backlash.
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Description

Technical Specifications

  1. Nominal DC Input Voltage Range: 18 VDC – 160 VDC
  2. Continuous Output Current Rating: 12 A RMS
  3. Peak Transient Output Current: 36 A RMS (1 second maximum overload duration)
  4. Control Core: 32-bit floating-point DSP motion processor
  5. Supported Feedback Devices: Orthogonal incremental encoder (max 5 M lines/sec raw, 20 M lines/sec 4x multiplied), digital Hall U/V/W sensor, back EMF sensorless feedback
  6. Control Modes: Position closed-loop, velocity closed-loop, torque closed-loop, electronic gear, electronic cam curve interpolation
  7. External Command Interfaces: ±10 V analog velocity/torque input, step/direction pulse input, 6 digital isolated input channels, 2 programmable digital output channels
  8. Configuration Communication: RS232 serial port for PC MCK software parameter tuning
  9. Encoder Signal Type: Differential line driver A/B/Z quadrature signals
  10. Position Loop Bandwidth: Max 800 Hz adjustable PID bandwidth
  11. Physical Dimension: 168 mm (L) × 100 mm (W) × 31 mm (D) flat panel form factor
  12. Operating Ambient Temperature: 0 °C – 50 °C with natural convection cooling
  13. Maximum Supported Motor Power: 1000 W direct drive motor
  14. Net Weight: 0.41 kg

Functional Features

  1. Native direct drive motor algorithm optimized for low-inertia DDR/DDL/voice coil load, eliminates mechanical vibration compensation lag
  2. Automatic motor phase alignment and PID parameter auto-tuning via MCK PC software without manual adjustment
  3. Built-in motion sequence programming engine; standalone operation without upper motion controller host
  4. Full multi-level hardware protection: over-current, over-voltage, under-voltage, over-temperature, encoder signal loss, motor wiring phase fault
  5. Real-time built-in oscilloscope function to capture position error, velocity ripple and torque output waveform for process debugging
  6. Configurable digital input trigger for position capture, motion pause, emergency stop and homing sequence activation
  7. Non-volatile onboard memory stores 10 sets of independent motor parameter profiles for quick motor switching
  8. Front panel power, running and fault status LED indicators

Working Principle

18–160 VDC bus power supplies the internal three-phase H-bridge power amplification circuit. The 32-bit DSP receives external position/velocity/torque command signals from analog or pulse input interfaces, reads high-resolution position feedback from the motor encoder, and executes real-time PID closed-loop operation. Optimized direct drive control algorithm calculates three-phase current output to drive the direct drive motor winding with instantaneous torque regulation. All motor calibration parameters and motion programs are stored in onboard flash memory. Onboard temperature sensors and current sampling circuits continuously monitor operating state; any out-of-limit condition immediately disables power output and latches fault code for software readback. RS232 communication channel transmits real-time operational data and accepts parameter modification commands from host PC MCK software.

Material Composition

  1. Main Housing: Black extruded aluminum alloy flat heat sink integrated chassis for passive cooling
  2. Power Circuit Substrate: Aluminum base high thermal conductivity PCB for power MOSFET heat dissipation
  3. Control PCB: FR-4 fiberglass digital signal board with ESD protection components
  4. Terminal Connectors: Screw-type copper alloy insulated terminal blocks for power, encoder and I/O wiring
  5. Power Semiconductors: Low Rds(on) N-channel MOSFET array for three-phase current output

Structural Characteristics

  1. Ultra-thin flat panel design for side-by-side DIN rail cabinet stacking to save control cabinet space
  2. Extruded aluminum chassis doubles as passive heat sink; finned structure maximizes natural convection heat exchange
  3. Separate wiring terminal zones: power terminal area isolated from encoder signal terminal area to reduce switching noise interference
  4. All connectors mounted on single front edge panel for simplified wiring harness routing
  5. Four corner mounting holes for both DIN rail clip installation and direct flat panel bolt mounting

Advantage Highlights

  1. Direct drive dedicated control algorithm delivers higher loop bandwidth than general-purpose servo drives for ultra-precision positioning
  2. Wide 18–160 VDC input voltage range compatible with all standard DC power supplies for laboratory and factory automation
  3. Standalone motion programming capability reduces upper controller hardware cost for simple multi-axis positioning equipment
  4. Automatic PID tuning eliminates complex manual parameter calibration for rapid equipment commissioning
  5. Compact flat form factor enables dense multi-axis drive arrangement inside small automation machine electrical boxes
  6. Fanless passive cooling eliminates dust accumulation and moving part wear for cleanroom and medical equipment applications

Applicable Industries

Semiconductor die bonding equipment, optical lens precision alignment stages, electronic SMT pick-and-place machines, medical surgical robot actuators, laser processing galvanometer control, automated optical inspection (AOI) equipment, laboratory precision positioning platforms

Installation Requirements

  1. Mount on standard 35 mm DIN rail or flat metal panel with minimum 10 mm vertical clearance between stacked drives for airflow
  2. Encoder signal wiring uses shielded differential twisted pair cable, separate routing from high-current DC power cables
  3. DC input power supply equipped with minimum 1000 μF bus filter capacitor to suppress voltage ripple
  4. Ambient cabinet air temperature shall not exceed 50 °C; forced auxiliary cooling fan mandatory for continuous full-load operation above 40 °C
  5. Chassis aluminum heat sink connected to equipment protective earth ground for EMI suppression

Usage Precautions

  1. Do not reverse DC input power polarity; reverse voltage destroys internal power MOSFET array instantly
  2. Encoder differential wiring short-circuit triggers immediate drive shutdown; inspect wiring before power-on commissioning
  3. Maximum 36 A peak current limited to 1 second continuous duration; prolonged peak current activates over-temperature protection
  4. Run auto-tuning procedure after every motor mechanical modification or cable length change
  5. Store spare drives in low-humidity environment; aluminum heat sink surface corrosion impairs cooling performance
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