The Allen-Bradley 1762-OF4 delivers precise analog control for MicroLogix systems. This module converts digital commands into smooth signals for modulating actuators. It provides four single-ended outputs for voltage or current loops. Use this module to drive valves, dampers, and variable frequency drives. The 1762-OF4 integrates seamlessly with MicroLogix 1100, 1200, and 1400 controllers. It supports critical data formats like Scaled-for-PID for closed-loop control.
Product Procurement & Buyer Guide
The 1762-OF4 solves the common problem of controlling analog field devices. You need a reliable way to command a VFD or position a valve. This module offers four configurable output channels for this exact task. Each channel works with either voltage or current signals. You can choose from ranges like 0-10VDC and 4-20mA. This flexibility allows one module to handle diverse actuators in your system.
Selecting this module ensures compatibility with your existing MicroLogix chassis. The 1762-OF4 is a standard expansion module for this popular PLC family. You can install up to six units on a MicroLogix 1200 system. This scalability lets you expand your analog outputs as your process grows. The module uses a 24VDC input power supply from the backplane.
The module's accuracy guarantees consistent process control results. At 25°C, the typical overall accuracy is ±0.5% full scale. This precision ensures your valve or drive receives the correct command signal. The 12-bit unipolar resolution provides fine granularity for smooth adjustments. The repeatability of ±0.12% ensures the same output for the same digital value every time.
Procurement managers value the module's low heat dissipation of 2.8 Watts. This reduces thermal stress inside your control panel. The compact dimensions of 90 x 87 x 40 mm save valuable space. The module also features an output protection value of ±32 mA. This protects the hardware from wiring faults or short circuits.
Step-by-Step User & Installation Guide
Before installation, review the ESD prevention guidelines for the module. The 1762-OF4 is sensitive to electrostatic discharge. Use a grounded wrist strap when handling the module. First, ensure the mounting surface is a well-grounded metal panel. This provides a solid electrical reference for the module.
Mount the module horizontally on a DIN rail or directly to the panel. Extra grounding connections from the tabs are not necessary. The ground path through the DIN rail or panel is sufficient. Slide the module into the desired slot on the MicroLogix expansion rail. Ensure the bus connector engages fully with the adjacent module.
Wire the output channels using the recommended Belden 8761 shielded cable. This cable minimizes electrical noise interference on the analog signals. Connect the shield to the ground at one end only. For a current output, the resistive load must be between 0 and 500 ohms. For a voltage output, the load must be more than 1 KΩ.
The output update time is only 2.5 milliseconds. This fast response allows the module to react quickly to PID loop commands. Configure the module's data format in your PLC program. Use Raw/Proportional or Scaled-for-PID formats as needed. The module acts as a direct output for a PID controller.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1762-OF4 Analog Output Module
- One (1) Removable Terminal Block for wiring connections
- One (1) Static Shielding Bag for safe storage
- We offer express shipping via FedEx, UPS, and DHL.
