LTi SO84.032 ServoOne Drive Controller 32A BG4
The LTi SO84.032 is the highest power variant in the BG4 housing, offering 32A continuous and 64A peak current. Designed for three-phase mains (230-480V), this drive tackles heavy-duty single-axis applications. Both air-cooled and liquid-cooled versions are available.
Main Specifications
Rated current: 32 A (400V, 8 kHz), peak: 64 A (0-5 Hz)
Mains: 3 x 230/400/460/480V AC ±10%
Switching frequencies: 4, 8, 12, 16 kHz
BG4 dimensions: width 171 mm, height 345 mm, depth 242 mm (air)
Weight: 7.5 kg (air) / similar for liquid
Integrated brake chopper
Technical Data
Power Ratings
Rated output current: 32 A
Peak current (0-5 Hz): 64 A
Connected load: 22.2 kVA (with mains choke)
Power loss at IN: 420 W (8 kHz)
DC link capacitance: 2000 μF
Braking
Brake chopper threshold: 650V DC (400V) / 820V (460/480V)
Minimum external braking resistor: 10 Ω
Continuous braking power (external): 67 kW
Peak braking power: 67 kW
Optional internal braking resistor: 10 Ω, continuous 1350 W, peak 67 kW
Cooling Options
Air-cooled: requires 150 mm clearance above/below
Liquid-cooled: nominal flow 3 l/min, pressure 1/2 bar, coolant temp 5-40°C
Liquid-cooled dimensions: 171 x 345 x 198.3 mm
Control Interfaces
24V control supply (6A start, 2A continuous)
6 digital inputs, 3 digital outputs, relay
2 analog inputs (±10V)
Resolver (X6) and high-resolution encoder (X7)
USB, Ethernet, MMC slot, option 1 (fieldbus), option 2 (technology)
Installation Guidelines
Mount vertically on a conductive plate. For air-cooled versions, ensure unobstructed airflow. For liquid-cooled, connect to a cooling circuit with clean water+corrosion inhibitor. The device will shut down at 65°C heat sink temperature. Use shielded motor cables (max 10 m for full current rating). External mains choke is mandatory for BG5 and above, but recommended for BG4 in harsh environments.
Commissioning
After wiring, apply 24V control supply. Use DriveManager 5 to set motor parameters, configure I/O, and tune the controller. The STO function must be wired to enable the power stage. The 7-segment display shows status and error codes. Parameter sets can be downloaded/uploaded via MMC card for series commissioning.
Typical Applications
Ideal for servo motors up to 15 kW (400V). Applications include heavy-duty robotics, large winding machines, metal cutting, and test benches. The 64A peak ensures rapid acceleration and high torque at low speeds.
Compliance
Complies with 2006/95/EC, 2004/108/EC, EN 61800-5-1, EN 61800-3 (C2/C3). UL approval conditions apply.
The LTi SO84.032 delivers robust, high-power servo control for the most demanding single-axis tasks.
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