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Key Technical Specifications
| Parameter | Specification |
| Series Architecture | Elmo Gold Tuba (G-TUB) |
| Continuous Current (I_{cont}) | 30 Amperes |
| Peak Current (I_{peak}) | Up to 60 Amperes (short duration acceleration) |
| Input Supply Voltage | Direct 3-phase 380 VAC to 480 VAC (50/60 Hz) |
| Auxiliary Logic Voltage | 24 VDC Control Supply Input |
| Primary Communication | EtherCAT (CoE / DS402 profile) and USB / RS232 |
| Feedback Options | Dual Feedback support (Incremental Encoder, Absolute EnDat/SSI, Resolver, Hall sensors) |
| Safety Integration | STO (Safe Torque Off) according to IEC 61800-5-2 (SIL 3, PLe) |
| Operating Temperature | 0°C to +40°C (Extended range variants available) |
| Enclosure Rating | Panel mount with integrated cooling heatsink/fan |
Product Introduction & Supply Chain Strategy
The Elmo G-TUB30480FEHSNA2 belongs to Elmo Motion Control’s flagship Gold Tuba line—a family of extremely compact, high-voltage AC servo drives capable of delivering up to 10kW of power directly from standard 380–480 VAC mains without requiring an isolation transformer. Designed for demanding applications such as multi-axis CNC machines, semiconductor manufacturing equipment, automated guided vehicles (AGVs), and heavy industrial robotics, the Gold Tuba drive combines high power density with ultra-low EMI emissions.
In automated production environments running EtherCAT motion buses, an unexpected servo amplifier failure will halt the entire multi-axis synchronization chain. Sourcing a verified G-TUB30480FEHSNA2 unit ensures seamless, drop-in replacement without altering network topologies or mounting footprints. Maintaining emergency spare drives safeguards against supply chain bottlenecks and protects against prolonged machine downtime.
G-TUB30480FEHSNA2
G-TUB30480FEHSNA2
Installation & Configuration Guide
1.Pre-Installation & Safety Verification:Perform Lock-Out/Tag-Out and discharge DC bus capacitors.
Disconnect 480 VAC mains power and 24 VDC logic supplies. Wait at least 5 minutes for internal DC bus energy to dissipate before handling power terminals. Verify zero voltage using a calibrated multimeter.
2.Removal & Terminal Disconnection:Disconnect motor leads, feedback cables, and fieldbus connections.
Label and disconnect the EtherCAT RJ45 patch cables, feedback D-Sub connectors, STO safety wiring, 24V auxiliary power, and high-voltage 3-phase motor cables (U, V, W, PE).
3.Physical Mounting & Wiring:Mount new Gold Tuba drive and secure ground bonding.
Mount the G-TUB30480FEHSNA2 to the panel backplate using recommended torque values to ensure optimal thermal contact. Reconnect the PE ground strap, motor power leads, feedback harness, and EtherCAT network cables.
4.Parameterization & Commissioning:Apply 24V control power and run Elmo Application Studio (EASII).
Apply 24 VDC logic power. Connect via USB/EtherCAT using Elmo Application Studio (EASII) software to upload or restore drive parameter files (.eas), verify feedback encoder resolution, run auto-tuning, and re-enable Safe Torque Off (STO).
Firmware & Software Integration
- Software Environment: Configured and tuned exclusively using Elmo Application Studio II (EASII).
- Fieldbus Protocol: Full support for EtherCAT (CANoverEtherCAT – DS402 profile) allowing real-time cyclic synchronous position (CSP), velocity (CSV), and torque (CST) modes.
- Parameter Backup: Always export the configuration file (.eas) from the existing drive using EASII prior to swapping hardware to ensure accurate tuning, thermal limits, and motor feedback alignment.
Frequently Asked Questions (FAQ)
Q: What does the “G-TUB” designation mean in the part number?
A: “G-TUB” stands for the Gold Tuba series—Elmo’s high-power, direct-mains AC supply digital servo drive architecture.
Q: Can the G-TUB30480FEHSNA2 drive a linear motor or voice coil motor?
A: Yes. Elmo Gold drives support a wide variety of motor topologies, including 3-phase AC brushless, DC brushed, direct-drive linear motors, and voice coils.
Q: Does this drive require an isolation transformer for 480 VAC operation?
A: No. The Gold Tuba series is specifically engineered for direct connection to 3-phase mains supplies up to 480 VAC without needing an external isolation transformer.
Q: What safety standards does the integrated STO feature meet?
A: The Safe Torque Off (STO) function complies with IEC 61800-5-2 SIL 3 and ISO 13849-1 PLe standards.
