ABB AI523 Analog Input Module

ABB AI523 Analog Input Module

Description: The AI523 is an analog input module designed for use in ABB's AC500 and AC500-XC programmable logic controllers (PLCs). It features 16 analog input channels that can handle voltage, current, and Pt100 signals. The module has a 12-bit resolution (including sign) and supports 2-wire connections.

Technical Specifications:

Process Voltage:

• Rated Value: 24 V DC
• Max Ripple: 5%
• Protection Against Reversed Voltage: Yes
• Rated Protection Fuse on UP: 10 A fast
• Galvanic Isolation: Yes (per module)
• Current Consumption: Approximately 2 mA from 24 V DC power supply
• Inrush Current from UP (at power-up): 0.050 A²s
• Max Length of Analog Cables (conductor cross-section > 0.14 mm²): 100 m
• Weight: 300 g
• Mounting Position: Horizontal or vertical (with derating at +40°C)
• Cooling: Natural convection (avoid hindrance by cable ducts or other parts)

Analog Inputs:

• Number of Channels per Module: 16 (divided into 2 groups of 8 channels each)
• Input Type: Bipolar (not for current or Pt100/Pt1000/Ni1000)
• Configurability: 0 V to 10 V, -10 V to +10 V, 0/4 mA to 20 mA, Pt100/1000, Ni1000 (each input can be configured individually)
• Channel Input Resistance: Voltage (>100 kΩ), Current (approximately 330 Ω)
• Time Constant of Input Filter: Voltage (100 μs), Current (100 μs)
• Indication of Input Signals: 1 LED per channel

Digital Input Mode (if used as digital inputs):

• Conversion Cycle: 2 ms (for 16 inputs), with Pt/Ni… 1 s
• Resolution (Range 0 V to 10 V): 12 bits

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