LTi SO84.024 ServoOne Drive Controller 24A BG4
The LTi SO84.024 is a high-power three-phase servo drive in the BG4 housing. Delivering 24A continuous and 48A peak current, it is suitable for demanding industrial axes requiring high torque and fast response. Both air-cooled and liquid-cooled versions are available.
Core Features
Rated current: 24 A (400V, 8 kHz), peak: 48 A (0-5 Hz)
Mains: 3 x 230V to 480V AC ±10%
Switching frequencies: 4, 8, 12, 16 kHz
BG4 dimensions: width 171 mm, height 345 mm, depth 242 mm (air) / 198.3 mm (liquid)
Weight: 7.5 kg (air)
Integrated brake chopper (external resistor min. 10 Ω for 400V)
Technical Specifications
Power
Rated current: 24 A
Peak current: 48 A
Connected load: 16.6 kVA (with mains choke)
Power loss at IN: 340 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 (external): 67 kW
Optional internal braking resistor: 20 Ω, continuous 675 W, peak 34 kW
Cooling Data (Liquid)
Coolant flow: 3 l/min nominal (4 max)
Coolant pressure: 1 bar nominal (2 max)
Coolant temperature: 5°C to 40°C, avoid condensation
Coolant quality: drinking water + corrosion inhibitor, chloride<100 ppm
Control
Control supply: 24V DC (6A start, 2A continuous)
6 digital inputs (2 high-speed), 3 digital outputs, 1 relay
2 analog inputs (±10V, 12-bit)
Resolver, high-resolution encoder
Motor brake output: 24V/2A
USB, Ethernet, MMC, option slots
Installation and Cooling
For air-cooled BG4, maintain 150 mm clearance above/below. For liquid-cooled, connect the cooling circuit using 3/8 inch female threads. Use drip-free quick-release couplings to avoid spills. The liquid capacity is approx. 0.5 l. The control cabinet must be at least IP4x (IP54 for STO).
Commissioning and Protection
Commission with DriveManager 5. The drive features overcurrent, overvoltage, undervoltage, and overtemperature protection. The dynamic coolant temperature monitoring shuts down the drive at 65°C heat sink temperature. For safety, the STO function (Safe Torque Off) disables torque output when requested.
Applications
Suitable for servo motors up to 11 kW (400V). Typical uses include large CNC machines, presses, extruders, and heavy-duty material handling. The 48A peak ensures high dynamic performance.
Standards
Complies with EN 61800-5-1, EN 61800-3, LVD, EMC. UL approval for BG4 pending.
The LTi SO84.024 provides a robust, high-power solution for advanced single-axis servo systems.
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