LTi SO84.045 ServoOne Drive Controller 45A BG5

The LTi SO84.045 is a high-power three-phase servo drive from the ServoOne family, featuring BG5 housing. It delivers 45A continuous current and 90A peak current, making it suitable for large industrial axes. Both air-cooled and liquid-cooled versions are offered, with mandatory external mains choke.

Key Features

• Rated current: 45 A (400V, 8 kHz), peak: 90 A (0-5 Hz)

• Mains voltage: 3 x 230V to 480V AC ±10%

• Switching frequencies: 4, 8, 12, 16 kHz (air) / up to 16 kHz (liquid)

• BG5 dimensions (air): width 190 mm, height 345 mm, depth 322 mm, weight 16.5 kg

• External mains choke mandatory (uk = 2% for BG5)

• Integrated brake chopper (external resistor min. 10 Ω for 400V)

Technical Specifications

Installation Requirements

For BG5 air-cooled, maintain 180 mm clearance above and below. For liquid-cooled, a cooling circuit with sufficient flow (8 l/min nominal) is mandatory. Use shielded motor cables (max 25 mm² terminal capacity). An external mains choke must be installed between mains filter and drive. The PE conductor must be sized according to EN 61800-5-1 (≥10 mm² Cu or two conductors).

Commissioning and Operation

Commission using DriveManager 5. The 7-segment display shows status. The power stage is enabled by +24V on ENPO and ISDSH (STO). The drive supports iPlc (CoDeSys) and various fieldbus options (EtherCAT, SERCOS). For braking, the internal brake chopper can handle up to 67 kW peak. A thermal switch in the braking resistor should be wired to a digital input for protection.

Applications

Ideal for servo motors up to 22 kW (400V). Typical uses include large presses, extruders, heavy-duty conveyor systems, and test stands. The 90A peak ensures high dynamic performance even with high inertia loads.

Compliance

Complies with EN 61800-5-1, EN 61800-3, LVD, EMC. UL approval for BG5 with specified fuses (class RK1) and tightening torques.

The LTi SO84.045 offers exceptional power and flexibility for high-end single-axis servo applications.