Product Description
The Allen-Bradley 1734-OB8S POINT Safety Output Module, available in Series A and B, features eight 1A solid-state current sourcing outputs with dual-channel redundancy for enhanced safety. It supports single-channel (Category 2, PLe/SIL CL2) and dual-channel (Category 3/4, PLe/SIL CL3) modes, pulse testing for short-circuit detection, and fault detection (short, high, low, cross-circuit). Key specs include a 475s pulse width, 575ms pulse period, 950nF max field capacitance, 0.165V voltage drop, 0.1mA leakage, 6.2ms reaction time, 190mA point-bus current, 4.5W max power dissipation, 15.38 BTU/hour thermal dissipation, and 50V continuous isolation. It operates on 24V DC (19.2-28.8V range), drawing 75mA with no load, and includes indicator lights for lock, power, and channel status. Wiring is Category 2, with terminal block details dependent on the installed block. Dimensions are 77 x 25 x 55 mm, and it weighs 2.2 ounces. It tolerates -20 to 55C operating and -40 to 85C storage temperatures, 5-95% non-condensing humidity, 5G vibration, and 30/50G operating/non-operating shock. It meets SIL CL2, PLe, Category 4 standards and is compatible with GuardLogix, Compact GuardLogix, and SmartGuard controllers, with GuardLogix programming tool/Logix Designer recommended for Ethernet networks. When a fault is detected, outputs are de-energized until the fault is cleared, the output is commanded to a safe state, or the output-error time expires, indicated by the red light turning off.
Is Your Device Showing These Signs?
The Allen Bradley 1734-OB8S POINT I/O module commonly experiences issues such as blown output fuses due to overcurrent conditions from inductive load switching or wiring faults. Field wiring terminations become loose, causing intermittent output signals and communication errors on the POINTBus backplane. The module's internal components degrade over time, leading to output failures and requiring replacement. Firmware corruption occurs, preventing proper module operation and necessitating a firmware update or replacement. Short circuits in connected field devices damage the output channels, resulting in permanent output failure.
Technical specifications
The Allen-Bradley 1734-OB8S POINT Safety Output Module is an 8-channel, 1A solid-state current sourcing output module with dual-channel redundancy for enhanced safety. It supports both single and dual-channel safety modes, pulse testing for short-circuit detection, and comprehensive fault detection. Key specifications include fast reaction time, low leakage current, and wide operating temperature range. It's compatible with various GuardLogix controllers and meets high safety standards (SIL CL2, PLe, Category 4). Upon fault detection, outputs are de-energized until the issue is resolved.
Our Repair Process for the
1734-OB8S
Our repair process for the Allen Bradley 1734-OB8S POINT I/O module begins with a thorough inspection for blown output fuses, loose field wiring terminations, and any signs of physical damage. We then conduct comprehensive testing of all output channels to identify any failures or degradation. Suspect modules undergo internal component analysis and replacement as needed. Firmware is verified and updated or re-flashed to eliminate corruption. In cases of short circuits, damaged output channels are repaired or the module is replaced. Finally, the repaired module undergoes rigorous functional testing to ensure it meets all original performance specifications before being returned.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
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Ships from Rochester, NY