AI893

Overview

AI893 is an 8-channel ABB S800 I/O analog input module with high resolution, groupwise isolation, and built-in diagnostics for RTD and thermocouple inputs.

Electrical Characteristics

• Resolution: 15 bit + sign

• Input Impedance: >10 MΩ

• Isolation: Groupwise isolated from ground

• Error:

• TC/mV: <20 µV

• RTD (0–400 Ω): <0.1 Ω

• RTD (0–4000 Ω): <1 Ω

• Temperature Drift:

• TC/mV: <20 µV/10°C

• RTD (0–400 Ω): <0.1 Ω/10°C

• RTD (0–4000 Ω): <1 Ω/10°C

• Update Cycle Time: (No. of active channels × 125) + 125 ms

• Common Mode Voltage Input: ±5 V

• CMRR (50/60 Hz): >100 dB

• NMRR (50/60 Hz): >80 dB

• Rated Insulation Voltage: 50 V

• Dielectric Test Voltage: 500 V AC

• Power Dissipation: 0.5 W

• Current Consumption (+5 V Modulebus): Typ. 90 mA, Max. <125 mA

Diagnostics

• Front LEDs: Fault (F), Run (R), Warning (W)

• Supervision: Open and short circuit detection for RTD

Mechanical Data

• Width: 45 mm

• Depth: 102 mm (111 mm including connector)

• Height: 119 mm

• Weight: 0.16 kg

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