1762-IF4 4-Channel Differential Voltage Current Analog Input Module

The 1762-IF4 is a four-channel differential analog input module used to acquire voltage and current signals from industrial sensors and transmitters.

Each channel can be configured for either -10 to +10 V DC or 4–20 mA input. Differential wiring helps reduce common-mode interference in electrically noisy machine environments.

The module is intended for analog input expansion and does not provide analog output channels or transmitter loop power.

Key Features

• Four differential analog inputs
• ±10 V voltage input
• 4–20 mA current input
• Up to 15-bit plus sign resolution
• Selectable 50/60 Hz filtering
• Compact expansion design

Typical Applications

• Pressure transmitters
• Flow measurement
• Level monitoring
• Position feedback
• Process signal acquisition

Voltage or Current Selection

Each channel must be configured for voltage or current input using both the module selector switch and the controller configuration.

The physical switch setting must match the programmed signal range.

External Transmitter Power

The module reads the analog signal but does not supply operating power to connected transmitters.

Two-wire and three-wire 4–20 mA devices require a suitable external DC power supply.

1762-IF4 vs 1762-IF2OF2

1762-IF4

4 analog input channels

No analog outputs

Suitable for multi-sensor acquisition

1762-IF2OF2

2 analog inputs

2 analog outputs

Suitable for combined measurement and control

Installation Notes

• Select voltage or current mode
• Match switch and software settings
• Use shielded analog cable
• Ground the shield correctly
• Separate analog wiring from motor cables
• Provide external transmitter power
• Test each channel before operation

FAQ

Q1: How many inputs does 1762-IF4 provide?

A1: It provides four differential analog input channels.

Q2: Which signals are supported?

A2: It supports -10 to +10 V DC and 4–20 mA signals.

Q3: Does it include analog outputs?

A3: No. It is an input-only module.

Q4: Does it power 4–20 mA transmitters?

A4: No. An external transmitter power supply is required.

Q5: What is the maximum resolution?

A5: Voltage input resolution is up to 15-bit plus sign, depending on the configured filter and data format.