ABB CAI20 Analog Input Module Most Favorable In Stock

Overview

The ABB CAI20 is an advanced analog input module designed for ABB Symphony control systems. It provides high-precision signal acquisition for various industrial applications, supporting both current and voltage inputs. This module also features HART communication, ensuring flexibility and reliable integration with control systems. Its design includes full electrical isolation for added safety and robust performance in demanding environments.

Technical Specifications

Input Channels

• 32 Analog Inputs

Signal Types Supported

• Current: 0/4–20 mA
• Voltage: 0–10 V
• HART Protocol: Versions 5.0 / 5.1

A/D Conversion

• Resolution: 12-bit

Electrical Isolation

• Type: Full isolation per module
• Rating Voltage: 50 Veff (VDE 0110 standard)
• Test Voltage: 500 Veff to system

Transmitter Power Supply

• Voltage: ≥23 V
• Rated Current: 25 mA
• Short-Circuit Current: 38 mA (short-circuit-proof)

Measurement Accuracy

• Linearity Error:
  • Current: ≤6 µA
  • Voltage: ≤3 mV
• Zero Error:
  • Current: ≤12 µA
  • Voltage: ≤6 mV
• Amplification Error: ≤0.1%

Temperature Influence

• Zero Drift:
  • Current: ≤4 µA/10K
  • Voltage: ≤2 mV/10K
• Amplification Drift: ≤0.08%/10K

Signal Processing

• Damping Filter: Low-pass (T = 100 ms, -30 dB at 50 Hz)
• Measurement Update Time: <40 ms (typical)

Power Supply Requirements

• Supply Voltage: 20–33 V DC (nominal 24 V ±10%)
• Fusing: 3.15 A time-lag glass fuse (5×20 mm)
• Overvoltage Tolerance:
  • 35 V for 1 s
  • 45 V for 10 ms

Current Consumption

• Transmitter Supply Off: ~195 mA @ 24 V
• Transmitter Supply On: ~865 mA @ 24 V (η = 0.75)
• Power Loss: Maximum 11 W @ 24 V

Environmental Conditions

• Operating Temperature: 0°C to 50°C
• Weight: 0.76 kg
• Dimensions: 212 mm × 350 mm × 55 mm

Binary Input Specifications

• Low Signal Range: -3 to +5 V
• High Signal Range: +12 to 35 V
• Input Current: 0.75 mA