ABB RDCU-12C Drive Control Unit | 3AUA0000036521

Overview:

The ABB RDCU-12C Drive Control Unit is a robust and reliable device designed for controlling drives in industrial environments. Featuring various I/O connectors and robust housing materials, this control unit is engineered to ensure durability and efficient performance. Suitable for various automation applications, it offers versatile connectivity options including analogue, digital, and relay outputs.

Key Features:

• Mounting Type: Easily mounted on a 35 × 7.5 mm DIN rail.
• Housing Material: Zinc-plated steel (base) and ABS/PC (cover) for enhanced durability.
• Multiple I/O Options: Includes constant voltage, analogue I/O, digital inputs, relay outputs, and more.
• Temperature Tolerance: Operating range from 0°C to 60°C (32°F to 140°F).
• Power Supply: Powered by 24 VDC with a robust isolation feature for stable operation.

Technical Specifications:

• Brand: ABB
• Model: RDCU-12C
• Part Number: 3AUA0000036521
• Power Supply: 24 VDC (X34 terminal)
• Voltage Outputs (X20, X21): ±10 VDC (0, +10, -10 VDC) with a maximum load of 10 mA
• Temperature Coefficient: ±100 ppm/°C (±56 ppm/°F)
• Resolution: 12-bit for ±10 V, 11-bit for 0…+10 V and 0…20 mA inputs
• Accuracy: ±0.5% of the full-scale range at 25°C
• LED Indicators: “Power” (green), “Fault” (red) for easy status monitoring
• Connector Types:
  • X20: 2-pole detachable screw terminal block for constant voltage output
  • X21: 3-pole detachable screw terminal blocks for analogue I/O
  • X22-X23: Digital inputs, relay outputs (up to 3 relay blocks)
  • X31-X34: Slots for additional connectivity and power inputs
  • X39: 12-pin header for control panel connection

Frequently Asked Questions (FAQ):

1. What is the operating temperature range of the RDCU-12C?
   • The RDCU-12C operates between 0°C to 60°C (32°F to 140°F).
2. How should I wire the constant voltage output?
   • Use a wire gauge between 0.3 mm² to 3.3 mm² (22–12 AWG) and tighten the screws to a torque range of 0.2–0.4 Nm (2–4 lbf.in.).
3. What are the input and output voltage specifications?
   • The unit provides output voltages of +10 VDC, 0, and -10 VDC with a ±0.5% tolerance.
4. How do I mount the unit?
   • The RDCU-12C can be easily mounted onto a 35 × 7.5 mm DIN rail.

For more detailed information: RDCU_HW_C