The Allen‑Bradley 1769‑OF4 is a compact analog output module that offers four isolated, single-ended channels. Specifically, this module generates both voltage and current outputs to meet diverse application needs. For instance, you can configure it for ±10V DC, 0 to 10V DC, 0 to 5V DC, or 1 to 5V DC. Meanwhile, it also supports standard current loops like 0-20 mA and 4-20 mA. Therefore, this flexibility makes the 1769‑OF4 suitable for a wide range of field devices and control scenarios.
The module integrates a sigma-delta Digital-to-Analog converter for precise signal generation. Consequently, it achieves a resolution of 15 bits (unipolar) and 15 bits plus a sign bit for ± (plus/minus) ranges. Specifically, the conversion rate is just 2.5 ms, while the step response completes within 2.9 ms at 63% of full scale. Moreover, this rapid response ensures precise control for demanding PID loops and fast-acting processes.
Accuracy remains a critical factor for this device. At 25 °C, the voltage accuracy is ±0.5% of full range. For current outputs, the accuracy reaches the same high standard under identical conditions. Additionally, the module error boundary is a low 0.8% across 0 to 60 °C, with an accuracy drift of only ±0.0086% per degree Celsius. Therefore, this module maintains stable performance even in fluctuating temperatures. Furthermore, its repeatability and nonlinearity margins are both rated at ±0.05%, guaranteeing consistent operation over time. The output ripple is also exceptionally low at ±0.05% from 0 to 50 kHz.
Each channel on the 1769‑OF4 can drive a variety of loads without difficulty. For voltage outputs, the minimum load resistance is greater than 1 kΩ. For current outputs, the resistive load range is 0 to 600 Ω, including wire resistance. Furthermore, the module handles an inductive load of up to 0.1 mH per current output. For voltage outputs, the capacitive load is limited to 1.0 µF. These specifications allow the 1769‑OF4 to interface reliably with most common actuators, VFDs, dampers, and signal receivers. Besides that, the output impedance is rated at less than 1 MΩ for voltage and greater than 1 MΩ for current, which ensures proper signal transfer.
Reliability is enhanced through built-in protection circuits. The 1769‑OF4 includes short-circuit protection with a maximum current limit of 40 mA. It also features over-voltage protection to safeguard the module and connected devices. Moreover, it offers a fast power-up and power-down response time of less than 1 ms. This rapid response helps prevent output spikes during system startup or shutdown. In addition, the offset error margin is minimal, which contributes to overall measurement integrity. The operational voltage rating is 30V DC, providing a safe operating margin.
The 1769‑OF4 comes in a single-slot width form factor. Its physical dimensions are 118 x 35 x 87 millimeters (4.65 x 1.38 x 3.43 inches), and it weighs approximately 280 grams (0.61 pounds). You can mount it on a standard DIN rail or directly onto a panel. For wiring, the module uses solid copper wire sizes from 22 to 14 AWG, or stranded wire from 22 to 16 AWG. Its heat dissipation is rated at 2.86 W, and it draws 120 mA at 5.1V and 170 mA at 24V from the backplane. Notably, the power supply distance rating is 8, which simplifies system layout and planning. If you need more than 8 modules, simply add another power supply to the CompactLogix assembly.
Installation of the 1769‑OF4 is straightforward and user-friendly. First, secure the module to the DIN rail or panel using standard mounting hardware. Next, connect the wiring using the recommended 22-14 AWG solid or 22-16 AWG stranded copper wire. For replacement parts, the terminal block is the 1769-RTBN18, and the replacement door is the 1769-RD. This module is compatible with MicroLogix 1500 and CompactLogix controllers. It also works seamlessly in systems running CompactLogix version 20 or later. Best of all, no field calibration is ever required, as the hardware design guarantees long-term accuracy.
The 1769‑OF4 serves as a critical component in programmable automation control systems. For example, you can use it to drive modulating final control elements like valves and dampers. Similarly, it works effectively with variable frequency drives (VFDs) for motor speed control. Additionally, the output signals can retransmit data to indicators, recorders, and data loggers. The analog signal may also serve as the control output for a PID controller. Furthermore, operators can initiate outputs via HMI, SCADA, or DCS systems. Consequently, this module offers exceptional versatility across numerous industrial applications.
1769-OF4 Analog Output Module (1 unit)
Removable Terminal Block (RTB) – 1 piece
Module Door – 1 piece
Installation Instructions (printed guide)
Note: This package does not include certificates, software, or warranty documents. Shipping is handled via FedEx, UPS, or DHL.
1. What controllers are compatible with the 1769-OF4?
This module works with MicroLogix 1500 and all CompactLogix controllers, including those running version 20 firmware.
2. Do I need to calibrate the 1769-OF4 after installation?
No. The 1769‑OF4 does not require any field calibration. Its accuracy is guaranteed by the hardware design and remains stable over time.
3. What output ranges can the 1769-OF4 support?
It supports voltage ranges of ±10V, 0-10V, 0-5V, and 1-5V DC. For current, it supports 0-20 mA and 4-20 mA signals.
4. What is the power supply distance rating for the 1769-OF4?
The power supply distance rating is 8. If your system requires more than 8 modules, you can add another power supply to the CompactLogix assembly.
5. What shipping carriers do you use?
We ship all orders via FedEx, UPS, or DHL to ensure fast and reliable delivery worldwide.
| Brand Name | |
| Model No. | 1769-OF4 |
| Product Type | Output Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
