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1756-OF6VI

Allen-Bradley 1756-OF6VI Isolated Analog Output Module | 6-Channel

A kan haja (30 guda), a shirye don aikawa

  • Manufacturer: Allen-Bradley

  • Product No.: 1756-OF6VI

  • Product Type: Analog Output Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Allen-Bradley 1756-OF6VI Isolated Analog Output Module

The Allen-Bradley 1756-OF6VI is a high-precision analog output module for the ControlLogix platform. This module from Rockwell Automation delivers six isolated voltage output channels. It provides reliable and accurate signal generation for controlling actuators, drives, and valves. The module fits into any available slot in a compatible ControlLogix chassis.

Key Technical Specifications

  • Brand & Manufacturer: Allen-Bradley / Rockwell Automation
  • Model & Series: 1756-OF6VI (ControlLogix Isolated Analog Output)
  • Number of Channels: Six (6) individually isolated voltage output points.
  • Output Signal Range: +/- 10 Volts DC per channel.
  • Output Resolution: 14 bits across a 21V span (1.3 mV).
  • Overall Accuracy: Better than 0.5% of the full output range.
  • Data Formats: Supports Integer mode (2's complement) and IEEE 32-bit floating point.
  • Output Settling Time: Less than 2 milliseconds to reach 95% of final value (resistive load).
  • Output Drive Capability: 10 mA minimum into a >1000 ohm load.

Electrical & Environmental Ratings

  • Power Consumption: 250 mA @ 5.1VDC and 175 mA @ 24VDC from the backplane.
  • Maximum Power Dissipation: 4.9 Watts (16.54 BTU per hour).
  • Isolation Voltage: 50 Volts continuous between channels and backplane.
  • Protection Features: Electronic short-circuit protection and overvoltage protection up to +/- 24VDC.
  • Operating Temperature: 0°C to 60°C (32°F to 140°F) at 5-95% non-condensing humidity.
  • Temperature Code: IEC T4 / T4A for use in hazardous locations.
  • Vibration Resistance: 2 G from 10 to 500 Hz.
  • Operating Shock: 30 G, ensuring durability in harsh environments.

Installation & Configuration

  • The 1756-OF6VI is a single-slot module that fits any slot in a ControlLogix chassis.
  • Terminal Block Required: Use a compatible removable block like 1756-TBNH or 1756-TBSH (sold separately).
  • Configure the module's scaling, data format, and alarming using Studio 5000 Logix Designer software.
  • The module supports on-board data alarming and direct scaling to engineering units for easy integration.
  • For optimal accuracy, perform a system calibration every six (6) months under normal operating conditions.
  • Ensure proper wire gauge and terminations for the +/-10VDC output signals to the field devices.

Frequently Asked Questions (FAQ)

What type of terminal block do I need for the 1756-OF6VI?

  • You need a compatible 20-pin removable terminal block. Rockwell Automation offers the 1756-TBNH (standard) or 1756-TBSH (high-density) blocks. These are purchased separately from the module itself.

How isolated are the output channels on this module?

  • All six channels on the 1756-OF6VI are individually isolated from each other and from the backplane. This prevents noise and ground loops from affecting signal integrity across different devices.

What is the difference between integer and floating-point data format?

  • Integer format (like 16-bit) offers faster module update times (10ms scan). The IEEE 32-bit floating-point format provides higher precision for calculations but has a slightly longer scan time (25ms). You select the format in the controller configuration.
🏷️ Tags: Analog Output Module

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