Allen-Bradley 1771-OBN/B PLC-5 Digital DC Output Module
$123.00
$320.00
Description
Allen-Bradley 1771-OBN/B PLC-5 Digital DC Output Module
Configured for DC load switching in PLC-5 I/O chassis, the Allen-Bradley 1771-OBN/B (1771-OBN Digital DC Output Module) provides direct physical/electrical execution through 8 sourcing output channels. The module operates with 10-30 VDC field signals and supports discrete control of DC actuators.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-OBN/B |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 2.01 lbs |
| Power Consumption | 16.9 W maximum, 0.9 W minimum |
| Product Type | Digital DC Output Modules |
| Product Family | PLC-5 |
| Module Type | DC sourcing output module |
| Number of Outputs | 8 sourcing outputs |
| Output Voltage Range | 10-30 VDC |
| Maximum Continuous Current Per Output | 1.5 A |
| Maximum Continuous Current Per Module | 8 A |
| Surge Current | 4 A for 1 ms, repeatable every 1 s |
| Off-State Leakage Current | 1 mA per output |
| On-State Voltage Drop | Maximum 2 VDC |
| Turn-On/Off Delay | Approximately 10 ms |
| Backplane Current | 165 mA @ 5 VDC |
| Isolation | 1500 V AC rms tested |
| Wiring Arm | 1771-WA |
| Mounting | Rack mountable |
| Data Format | BDC or Natural Binary |
PLC-5 Industrial Control Output Characteristics
The 1771-OBN/B uses PLC-5 backplane communication for discrete output data transfer. The module provides I/O density scaling through 8 individually controlled sourcing outputs designed for DC field devices. Output channels supply positive voltage to connected loads and are configured for devices requiring sink input connections.
The Allen-Bradley PLC-5 architecture uses deterministic rack-based I/O communication. The module supports electrical separation through optical isolation and includes output status indication for field circuit monitoring.
Frequently Asked Questions
Q: What type of field devices can be connected to the 1771-OBN/B output channels?
A: The module provides 10-30 VDC sourcing outputs for DC loads such as solenoids, relays, pilot lights, and annunciators within the rated current limits.
Q: What is the backplane current requirement of the 1771-OBN/B?
A: The module requires 165 mA from the 5 VDC backplane supply.
Q: Does the module provide output isolation?
A: Yes. The module includes optical isolation tested to 1500 V AC rms between control circuitry and field output circuits.
Field Installation Guidelines
Install the 1771-OBN/B in a compatible 1771 I/O chassis slot and confirm chassis power capacity before energizing the rack. Connect field wiring through the specified 1771-WA wiring arm and verify output polarity before connecting DC loads.
Separate DC output wiring from high-voltage AC conductors and high-frequency switching cables to reduce electrical interference. Use proper grounding practices for the chassis and apply cable shielding methods according to the installation environment.
Verify each output channel current requirement against the module output ratings. Inspect terminal connections, module seating, and field wiring continuity before system commissioning.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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