Allen-Bradley 1756-OB16E Digital Output Module – ControlLogix 16-Point Spare Part
Allen-Bradley 1756-OB16E is listed for ControlLogix RFQ review. Confirm quantity, condition and destination before quotation.
Model: 22D-D1P4N104
Product Overview
Commercial availability is handled through direct RFQ, model verification and export-oriented follow-up rather than public cart checkout.
Datasheet Preview
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Commercial Path
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Technical Dossier
RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.
| Part Number | 22D-D1P4N104 |
| Brand | Allen-Bradley (Rockwell Automation) |
| Series | PowerFlex 40P |
| Drive Type | AC Variable Frequency Drive (VFD) |
| Input Voltage | 380–480V AC, 3-Phase |
| Control Method | Sensorless Vector / V/Hz |
| Communication | DSI (Drive Serial Interface) port standard |
| Enclosure Rating | IP20 / Open Type |
| Discontinuation Status | Confirmed discontinued by Rockwell Automation. No direct OEM replacement with identical form factor. |
| Country of Origin | United States |
Note: Electrical parameters listed are based on published Rockwell Automation documentation. Always cross-reference with your specific installation nameplate data before installation.
The PowerFlex 40P series was widely deployed across food and beverage, water treatment, material handling, and discrete manufacturing facilities throughout the 2000s and 2010s. Many of these installations are embedded within larger Allen-Bradley control architectures — coordinated by ControlLogix or CompactLogix PLCs, monitored via FactoryTalk View, and networked over DeviceNet or EtherNet/IP. Replacing a single failed 22D-D1P4N104 with a current-generation drive is not a plug-and-play exercise. Parameter mapping differences, communication protocol gaps, and physical mounting constraints mean that a simple swap frequently escalates into a multi-week engineering project.
The 22D-D1P4N104 is a known single point of failure in installations where it controls conveyor drives, pump stations, or HVAC systems integrated into a broader Allen-Bradley network. Its discontinuation means that each unit remaining in the market represents a finite, non-renewable resource for the facilities that depend on it.
DriveKNMS applies a structured 5-step quality verification process to all legacy drive inventory before dispatch review:
Q: Should I purchase more than one unit as a long-term reserve?
A: For any installation where the 22D-D1P4N104 represents a single point of failure on a critical production asset, holding a minimum of one cold spare is standard practice. For high-utilization lines or multi-unit installations, a reserve of two to three units is a defensible risk management position given the confirmed discontinuation of this part number.
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