Allen-Bradley MicroLogix 1762-IF2OF2 Analog Input/Output Module

The Allen-Bradley MicroLogix 1762-IF2OF2 Analog Input/Output Module is a versatile module designed for the MicroLogix series of programmable logic controllers (PLCs). It combines analog input and output functionality in a compact design, making it suitable for a variety of industrial automation applications. Here’s a detailed breakdown of its features and specifications:

General Specifications

Class: Programmable Logic Controller Module
I/O Type: 4-channel analog combo (2 inputs, 2 outputs)
Isolation: Isolated I/O
Status Indication: LED
Temperature Range: -20°C to 65°C (-4°F to 149°F)

Electrical Specifications

Analog Inputs

Number of Inputs: 2 differential (unipolar)
Resolution: 12-bit
Input Range:
- Voltage: 0-10V DC
- Current: 4-20mA
Impedance:
- Voltage Terminal: 200 kΩ
Common Mode Voltage Range: -27V to 27V
Common Mode Rejection: >55 dB at 50 and 60 Hz
Input Update Time: 2.5 ms (typical)
Protection:
- Voltage Input: -30V
- Current Input: -32mA

Analog Outputs

Number of Outputs: 2 single-ended (unipolar)
Output Range:
- Voltage: 0-10V DC
- Current: 4-20mA
Load Ranges:
- Voltage Output: >1 kΩ
- Current Output: 0-500 Ω
Update Time: 4.5 ms (typical)
Accuracy:
- ±0.5% full scale at 25°C
- ±1.17% full scale across the operating temperature range
Output Protection:
- Short-circuit and overcurrent protection
- Reactive loads: <1 µF (voltage), <0.1 mH (current)

Electrical Noise Immunity

Fast Transient Burst: IEC 1000-4-4: 2 kV @ 5 kHz
Conducted Immunity: IEC 1000-4-6: 10 V @ 0.15–80 MHz
Radiated Immunity: IEC 1000-4-3: 10 V/m, 80–1,000 MHz

Environmental Specifications

Operating Temperature: -20°C to 65°C
Storage Temperature: -40°C
Operating Humidity: 5% to 95% (non-condensing)
Operating Altitude: 2000 m
Shock Resistance: 30 g
Vibration Resistance: 5 g @ 10–500 Hz

Mechanical Specifications

Dimensions:
- Height: 90 mm
- Width: 40 mm
- Depth: 87 mm
Weight: 240 g (shipping weight)
Connection Type: Screw terminals
Recommended Cable: Belden 8761 (shielded)

Performance

Analog Input and Output Configuration: Fully configurable for various signal types (voltage or current).
A/D and D/A Converter Type:
- Input: Successive Approximation
- Output: Resistor String
Repeatability: ±0.12%

Safety and Compliance

Hazardous Environment Class: Class I, Division 2 (UL 1604, C-UL under CSA C22.2 No. 213)
Radiated and Conducted Emissions: EN 50081-2, Class A
Surge Immunity: IEC 1000-4-5: 1 kV galvanic gun
ESD Immunity: EN 61000-4-2

Applications

The 1762-IF2OF2 module is ideal for applications requiring precise analog control and monitoring, such as:

Process automation
Machine control
Temperature and pressure monitoring

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