1746-INT4

Overview

1746-INT4 is an Allen-Bradley SLC 500 thermocouple/mV isolated input module with 4 isolated channels.

Electrical Specifications

• Backplane Current Consumption: 110 mA @ 5 V DC, 85 mA @ 24 V DC

• Backplane Power Consumption: 0.6 W max (0.55 W @ 5 V DC, 2 W @ 24 V DC)

• Number of Channels: 4 (backplane and channel-to-channel isolated)

• I/O Chassis Location: Any module slot except slot 0

Input and Conversion

• A/D Conversion Method: Sigma-delta modulation

• Input Filtering: Analog filter with low-pass digital filter

• Normal Mode Rejection: >50 dB @ 50 Hz, >60 dB @ 60 Hz

• Common Mode Rejection: >120 dB at 50/60 Hz (with 1 kΩ imbalance)

• Channel Bandwidth (-3 dB): 8 Hz

• Calibration: Once yearly, if required

Isolation

• Channel-to-Channel / Channel-to-Backplane: 1000 V transient or 150 V AC continuous

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