Elmo G-TUB30/480ERSS0 | High-Power EtherCAT Servo Drive

Description

Key Technical Specifications

• Input Voltage: 3x 140VAC (min) to 3x 528VAC (max); Rated 3x 400/480VAC
• Continuous Output Current (Ic): 30A (Sine wave amplitude) / 21A (RMS)
• Peak Current: 60A
• Max Continuous Power: 18.5 kW
• Communication: Real-time EtherCAT, CANopen
• Efficiency: >98% at rated power
• Control Modes: Current (Torque), Velocity, Position
• Motor Compatibility: Brushless (PMSM), Brush DC, Linear, Voice Coil
• Cooling: Natural convection or forced air (depends on load)
• Protection: Over-current, over-temperature, under/over-voltage, short circuit
• Compliance: IEC61800, UL508c, UL60950, EC61800-5-2

Product Introduction

The Elmo G-TUB30/480ERSS0 is a compact, high-power density servo drive from the Gold Tuba series, engineered to deliver precise control for demanding industrial automation and robotics. It operates directly on high-voltage AC mains, eliminating the need for bulky external transformers in many setups.What sets this drive apart is its ability to output 18.5 kW of continuous power within a remarkably small footprint, significantly saving cabinet space. Field engineers appreciate its >98% energy conversion efficiency, which translates to lower heat generation and reduced cooling requirements in multi-axis systems.Installation & Configuration Guide

• Preparation (10 min): Verify your 3-phase power supply is within the 140VAC to 528VAC range. Ensure you have the Elmo Application Studio (EAS) software installed on your Windows PC for configuration.
• Removal/Unboxing: Inspect the drive for any shipping damage. Locate the EtherCAT IN/OUT ports and power terminals. (Always keep the original anti-static bag for future storage).
• Installation (10 min): Mount the drive vertically inside a standard electrical cabinet to ensure proper heat dissipation. Connect the 3-phase AC power to the main input terminals and wire the motor phases (U, V, W) securely.
• Power-On & Test (10 min): Connect the EtherCAT cable to your network controller. Power on the drive and launch EAS to perform a communication handshake. Run a basic motor identification routine before executing full-load movements.

Troubleshooting Quick Reference

• Drive won’t power on: Check the main 3-phase input voltage. It must be above 140VAC. Verify the auxiliary 18-30 VDC supply if applicable.
• EtherCAT communication fault: Inspect the physical Ethernet cable and ensure the “IN” and “OUT” ports are correctly daisy-chained. Check if the ESI file is correctly loaded in your master controller.
• Motor overheats or vibrates: The motor phase wiring might be swapped, or the auto-tuning in Elmo Application Studio was not completed correctly. Re-run the tuning wizard.
• Frequent over-current faults: Check for short circuits in the motor cables. Ensure the peak current limit in the software matches your motor’s datasheet (max 60A for this model).

Dimensions, Mounting & Wiring Notes

• Mounting: Standard vertical mounting on a flat backplate inside a control cabinet.
• Terminals: High-voltage power terminals require shielded cables. Ensure strict grounding to minimize electromagnetic interference (EMI).
• Cooling: While highly efficient, this drive generates heat at peak loads. Ensure adequate cabinet ventilation or forced air cooling if multiple drives are stacked closely together.

FAQQ: Can I use this drive with a 230V power supply?

A: No. This specific model (G-TUB30/480ERSS0) is designed for high-voltage input (rated for 400/480VAC). Using it with 230V will trigger an under-voltage fault. You would need a different model from the Gold Tuba series (like the 30/230) for that voltage.Q: I’m setting up a multi-axis robot. Does this support real-time synchronization?
A: Yes. It features deterministic EtherCAT communication, which is standard for synchronizing multiple axes in robotics and CNC applications with microsecond-level precision.Q: How do I configure the drive? Do I need a special cable?
A: You configure it using the Elmo Application Studio (EAS) software via a standard USB or Ethernet connection. It’s a Windows-based tool that handles the complex math for you.Q: Is this drive compatible with linear motors?
A: Absolutely. The Gold Tuba series supports sinusoidal and trapezoidal commutation, making it fully compatible with rotary brushless motors, linear motors, and even voice coil actuators.Q: What is the lead time if this isn’t in stock?
A: As an industrial component, lead times vary based on region and distributor stock. Typically, if not on the shelf, it can take several weeks to import. Always check current availability with your supplier before finalizing your project timeline.