Elmo G-TUB30

Elmo G-TUB30

Product Introduction G-TUB30 belongs to Elmo Gold Tuba series high density servo drive. It is designed for high power DC servo motor control, adopting Elmo proprietary FASST fast soft switching power conversion technology. The drive receives motion commands from motion controller via EtherCAT or CANopen bus, outputs high current PWM power to servo motor, and executes high bandwidth position, speed and torque closed-loop control. It delivers high dynamic performance and low EMI for heavy-duty motion applications.

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Description

Elmo G-TUB30

Technical Specifications

  • Product Type: Digital high power servo drive
  • DC Input Voltage: 20 V DC to 80 V DC
  • Continuous Output Current: 30 A RMS
  • Peak Output Current: 60 A RMS
  • Control Modes: Torque, speed, position closed loop control
  • Communication Interfaces: EtherCAT, CANopen
  • Feedback Support: Encoder, resolver, Hall sensor
  • Switching Technology: FASST fast soft switching
  • Power Conversion Efficiency: Above 99 %
  • Protection Functions: Overcurrent, overvoltage, undervoltage, overtemperature, short circuit, feedback fault
  • Protection Rating: IP20
  • Operating Temperature: -20 °C to +70 °C
  • Mounting: Panel mounting with heat sink interface
  • Cooling Method: Forced air or liquid cooling via base plate

Functional Features

  1. High bandwidth three closed-loop control for precise torque, speed and position regulation.
  2. FASST fast soft switching technology reduces switching EMI and power loss.
  3. EtherCAT real-time bus support for multi-axis synchronised motion control.
  4. Multiple feedback interfaces compatible with incremental encoder, absolute encoder and resolver.
  5. Built-in automatic motor identification and auto-tuning function for fast commissioning.
  6. Comprehensive hardware protection prevents damage under overload, short circuit and over-temperature conditions.
  7. High power density compact mechanical structure reduces cabinet space occupation.
  8. Stand-alone operation mode supports pre-programmed motion sequences without upper controller.
  9. Elmo EASII software supports parameter configuration, oscilloscope monitoring and fault diagnosis.
  10. Low thermal stress design improves long service life under continuous heavy load operation.

Application Scenarios

  • Industrial robotic joint high power servo control
  • Automated machine tool heavy feed axis drive
  • Packaging machinery high dynamic motion axis
  • AGV and mobile robot traction motor control
  • Aerospace test bench precision motion equipment

Material Composition

  • Housing: High strength aluminium alloy heat sink base and plastic front frame
  • Main PCB: FR4 high reliability printed circuit board with conformal coating
  • Power components: High efficiency MOSFET power chips
  • Processor: High speed motion control ASIC and microcontroller
  • Terminal blocks: High current nickel-plated copper screw terminals
  • Communication connectors: Gold plated contact D-Sub connectors

Structural Characteristics

  • Flat rectangular metal base plate designed for thermal dissipation.
  • Front panel with LED indicators for power, run and fault status.
  • High current screw terminals for DC bus and motor power wiring.
  • Separate low current connectors for encoder feedback and communication signals.
  • Internal circuit layout segregates high power switching circuit and low noise signal circuit.
  • Base plate surface flatness ensures good thermal contact with external heat sink.

Working Principle Upper motion controller sends motion command via EtherCAT or CANopen bus to G-TUB30. Drive internal ASIC executes closed-loop control algorithm according to feedback signal from motor encoder. PWM power stage converts DC bus voltage into three-phase variable frequency AC output to drive servo motor. FASST switching technology controls power device turn-on and turn-off to minimise voltage overshoot and electromagnetic interference. Built-in protection circuit monitors current, voltage and temperature continuously, and cuts off power output immediately when fault condition triggers.

Installation Requirements

  • Mount drive on properly sized heat sink with thermal grease applied evenly.
  • Tighten mounting screws to specified torque value.
  • Use high gauge shielded cable for motor power and encoder feedback wiring.
  • Separate motor power cable from signal and communication cables.
  • Complete protective earth connection to heat sink and cabinet ground bar.
  • Perform motor auto identification and servo loop auto-tuning after wiring completion.
  • Verify bus communication and feedback signal integrity before full load test.

Usage Notes

  • Do not exceed maximum DC input voltage and peak output current rating.
  • Maintain sufficient cooling airflow or liquid cooling flow to limit base plate temperature.
  • Keep cabinet environment free of conductive dust and corrosive vapor.
  • Use ESD protection when handling drive and encoder cables.
  • Backup drive parameters before firmware upgrade or program modification.
  • Disconnect DC bus power and discharge bus capacitor before opening wiring terminals.
  • Replace drive immediately when permanent power stage or control hardware fault occurs.

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