Detailed Product Description of SEW BTS20-300-40-24
SEW BTS20-300-40-24 is a servo drive controller under the BTS20 series of SEW. It provides precise motion control for high-performance servo systems, is compatible with medium to large power servo motors, and is widely used in industrial automation equipment for high-precision positioning and synchronous control.

I. Basic Information

Product Series: BTS20 Series Servo Drives

Product Type: Servo Drive Controller

Manufacturer: SEW-EURODRIVE

Application Fields:

Machine tools, robots, automated production lines

Packaging, printing, textile machinery

Material handling, lifting equipment

High-precision positioning, synchronous control equipment

Installation Method: Control cabinet rail installation / Panel installation

Protection Grade: IP20 (installed inside the cabinet)

II. Model Meaning Interpretation

BTS20: BTS20 Series Servo Drives

300: DC bus voltage 300V DC

40: Rated output current 40A

24: Control voltage 24V DC

III. Core Technical Parameters

1. Electrical Parameters

Input Voltage: 300V DC (DC bus)

Control Voltage: 24V DC

Rated Output Current: 40A

Maximum Output Current: 80A (short time)

Output Voltage: 0–230V AC (compatible with three-phase servo motors)

Switching Frequency: 8–16kHz (adjustable)

Control Mode: Vector Control (FOC), Position / Speed / Torque Three-Loop Control

Feedback Interface: Supports encoders (TTL, Sin/Cos, EnDat)

2. Functional Features

Control Mode: Position, Speed, Torque Closed-loop Control

Communication Interface: PROFIBUS-DP, CANopen, DeviceNet (optional)

I/O Interface:

Digital Input: 8 channels (24V DC)

Digital Output: 4 channels (24V DC, 0.5A)

Analog Input: 2 channels (±10V)

Analog Output: 2 channels (±10V)

Protection Function: Overcurrent, Overvoltage, Undervoltage, Overheating, Overload, Short-circuit Protection

Status Indicator: LED Operating / Fault Indicator

3. Physical Parameters

Size (W×H×D): Approximately 150 × 300 × 120 mm

Weight: Approximately 4.5 kg

Operating Temperature: -10℃ ~ +45℃

Storage Temperature: -25℃ ~ +70℃

Relative Humidity: 5–95% (no condensation)

IV. Functions and Advantages

1. High-performance Control

40A Large Current Output: Compatible with medium-large power servo motors

Vector Control: Fast dynamic response, high positioning accuracy

Three-Loop Control: Precise adjustment of position, speed, and torque

High Bandwidth: Supports high-speed, high-dynamic motion control

2. Flexible Communication

Multiple Bus Support: Compatible with mainstream industrial field buses

Fast I/O: High-speed digital / analog interfaces

Encoder Feedback: Supports various high-precision encoders

3. Reliable and Stable

Comprehensive Protection: Overcurrent, Overvoltage, Overheating, Short-circuit Full Protection

Industrial Design: Anti-interference, adaptable to harsh working conditions

SEW Quality: Factory warranty, long-term stability

4. Easy to Use and Maintain

Parameterized Configuration: Software rapid debugging

Status Diagnosis: Real-time monitoring, fault recording

Compact Design: Saves cabinet space

V. Typical Applications

Compatible Motors: SEW CMP, CM, CF Series Servo Motors

Motor Power: 5.5–11 kW (300V DC, 40A)

System Configuration: PLC + BTS20 Servo Drive + Servo Motor (High-precision Motion Control)

VI. Selection and Installation Tips

Current Matching: Motor rated current ≤ 40A

Voltage Matching: DC bus 300V DC

Heat Dissipation: Forced ventilation in cabinet, ambient temperature ≤ 45℃

Grounding: Reliable grounding (EMC and safety)

VII. Order Information

Model: BTS20-300-40-24 Warranty: 12 months (industry standard)

Standard equipment: Drive unit, terminal blocks, manual

VIII. Comparison with the same series

BTS20-300-20-24: 20A, low-power servo

BTS20-300-40-24: 40A, medium-power servo (current model)

BTS20-300-50-24: 50A, high-power servo