1771-OD16/A Allen-Bradley Digital Output Module
$123.00
$320.00
Description
Allen-Bradley 1771-OD16/A PLC-5 DC Output Module
Configured for DC load switching in PLC-5 I/O rack systems, the Allen-Bradley 1771-OD16/A (1771-OD16 DC Output Module) provides 16 individually fused sinking outputs for direct control of 10-60 VDC field devices. The module executes discrete electrical output functions through optically isolated channels with per-point diagnostic indication.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-OD16/A |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 1.8 lbs |
| Dimensions | 1771 I/O rack module format |
| Power Consumption | 20 W maximum dissipation |
| Product Type | DC Sinking Output Module |
| Series | PLC-5 1771 I/O Series |
| Output Channels | 16 sinking outputs |
| Output Voltage Range | 10-60 VDC |
| Maximum Current per Output | 2 A continuous |
| Maximum Module Current | 16 A continuous |
| Surge Current Capability | 4 A for 10 ms, repeatable every 1 s |
| Off-State Leakage Current | 1 mA per output |
| On-State Voltage Drop | 2 VDC maximum |
| Turn-On/Off Delay | Approximately 10 ms |
| Backplane Current | 350 mA at 5 VDC |
| Isolation | 1500 V AC rms tested |
| Wiring Arm Compatibility | 1771-WH |
| Protection Method | Individually fused outputs |
| Diagnostics | Output and fuse status LED indicators |
EtherNet/IP and PLC-5 I/O Control Characteristics
The 1771-OD16/A operates as a discrete output interface within the Allen-Bradley PLC-5 architecture. Its 16 output channels provide individual electrical switching paths for DC field loads. The module communicates with the PLC processor through the 1771 backplane bus, with output commands transferred through the I/O rack structure.
The optically isolated output design separates field-side switching circuits from internal controller electronics. Each output channel includes individual fuse protection and LED status indication for channel-level fault identification. The module supports sinking output operation, where connected loads are switched toward ground potential.
Frequently Asked Questions
Q: What type of loads can the 1771-OD16/A control?
A: The module controls DC loads including solenoids, relays, pilot lights, and annunciator devices within the 10-60 VDC output range.
Q: Does the module provide electrical isolation between field wiring and the PLC system?
A: Yes. The output channels use optical isolation to separate field-side circuits from the PLC-5 backplane interface.
Q: What protection is provided for individual output channels?
A: Each output channel includes individual fuse protection to limit damage from overload and short-circuit conditions.
Field Installation Guidelines
Install the 1771-OD16/A in a compatible PLC-5 1771 I/O chassis with correct rack addressing configuration. Connect field wiring through the specified 1771-WH wiring arm and verify terminal assignments before energizing external loads.
Route DC output wiring separately from high-voltage AC conductors and high-current switching cables to reduce electrical noise coupling. Connect cable shields according to plant grounding standards, normally bonding shields at the designated control cabinet grounding point.
Verify load current requirements before operation. Each output channel must remain within the specified current rating, and the total module load must remain within the aggregate current limit. Confirm fuse status indicators and output diagnostics during 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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