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Allen-Bradley

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Allen-Bradley 1756-OF4 Analog Output Module, 4-Channel Voltage/Current

Allen-Bradley 1756-OF4 Analog Output Module, 4-Channel Voltage/Current

  • Manufacturer: Allen-Bradley

  • Product No.: 1756-OF4

  • Condition：in Stock

  • Product Type: Analog Output Module, 4-Channel Voltage/Current

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 1000g

  • Shipping port: Shanghai/Yiwu/Shenzhen

  • Warranty: 12 months

Product Overview

The Allen-Bradley 1756-OF4 is a 4-channel analog output module for precise voltage or current control in industrial automation applications. It supports output ranges of ±10 V or 4–20 mA, with high-resolution 15-bit conversion for accurate control. The module features overvoltage and short-circuit protection, open-circuit detection, and fast settling time (<2 ms), ensuring reliable and safe operation.

This module is ideal for integration with ControlLogix systems, offering software-configurable keying, robust thermal and electrical protection, and industry-standard calibration intervals.

Technical Specifications

Parameter Specification
Manufacturer / Brand Allen-Bradley / Rockwell Automation
Part Number / Model 1756-OF4
Module Type Analog Output Module
Number of Outputs 4 voltage or current outputs
Output Range ±10 V; 4–20 mA
Resolution Voltage: 15 bits (320 µV/bit); Current: 15 bits (650 nA/bit)
Current Draw 150 mA @ 5.1 V; 210 mA @ 24 V
Backplane Power 5.8 W
Power Dissipation (Max) 3.25 W (4-channel current)
Thermal Dissipation 10.91 BTU/hr
Open Circuit Detection Current output only (>0.1 mA)
Overvoltage Protection 24 V DC
Short Circuit Protection Electronically limited to ≤21 mA
Drive Capability Voltage: >2000 Ω; Current: 0.5 Ω
Settling Time <2 ms to 95% of final value (resistive load)
Calibrated Accuracy (25 °C) Voltage: ±0.05% of range; Current: ±0.05% of range
Calibration Interval 12 months typical
Offset Drift Voltage: 50 µV/°C; Current: 100 nA/°C
Gain Drift Voltage: 25 ppm/°C; Current: 50 ppm/°C
Module Error Voltage: 0.15% of range; Current: 0.3% of range
Module Input Scan Time 12 ms (floating point); 8 ms (integer)
Data Format Integer mode (2’s complement), IEEE 32-bit floating point
DAC Method R-Ladder DAC, monotonic, no missing codes
Isolation Voltage 250 V continuous; reinforced insulation to backplane
Module Keying Electronic, software configurable
Slot Width 1
Wire Category 2¹
Temperature Rating North America: T4A; IEC: T4
Enclosure Type Open-style (none)

Key Features

  • Four-channel analog output for voltage or current control.

  • High-resolution 15-bit DAC for precise signal generation.

  • Short-circuit, overvoltage, and open-circuit protection ensures safety.

  • Fast settling time (<2 ms) supports dynamic process control.

  • Hardened module design with reinforced isolation and thermal dissipation.

  • Compatible with ControlLogix and CompactLogix systems.

  • Software-configurable keying for flexible module placement.

 

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4-Channel Voltage/Current Allen-Bradley
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