Allen-Bradley 1771-IM AC Input Module
$123.00
$320.00
Description
Allen-Bradley 1771-IM AC Input Module
The Allen-Bradley 1771-IM, also cataloged as the 1771-IM AC Input Module, operates as a dedicated hardware component for AC field signal acquisition within PLC-5 I/O chassis platforms. It provides 32-point AC input monitoring with optically isolated channels, input filtering, and LED status indication for discrete signal processing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-IM |
| Brand | Allen-Bradley |
| Origin | USA |
| Product Type | AC Digital Input Module |
| Series | PLC-5 1771 I/O |
| Input Channels | 32 AC input points |
| Input Voltage Range | 85-138 VAC or 170-265 VAC |
| Input Frequency | 47-63 Hz |
| Input Current | Approx. 10 mA per channel |
| Isolation | Optoelectrical isolation between field inputs and backplane |
| Response Time | 10-17 ms typical |
| Backplane Current | 250 mA @ 5 VDC |
| Power Consumption | 6 W |
| Weight | 1.08 lbs |
| Dimensions | 237.5 x 183 x 55 mm |
| Operating Temp | 0-60 deg C |
| Wiring Arm | 1771-WJ |
| Mounting | Rack mount, 1 slot |
| Compatibility | PLC-5 processors and 1771 I/O chassis |
PLC-5 AC Input Signal Processing
The 1771-IM module provides discrete AC signal conversion for PLC-5 control systems. The input circuitry supports AC field devices including switches, relays, and sensors. Each channel includes LED indication for input state monitoring and optoelectrical isolation for separation between field wiring and the PLC backplane interface.
For Allen-Bradley PLC-5 architectures, the module uses deterministic I/O density scaling through the 1771 rack backplane. The fixed channel structure allows integration with existing PLC-5 chassis configurations while maintaining block-oriented data exchange between the controller and I/O assembly.
Frequently Asked Questions
Q: What type of field signals can the 1771-IM process?
A: The module processes discrete AC input signals within the specified 85-138 VAC and 170-265 VAC operating ranges.
Q: How is field-side electrical separation implemented?
A: The module uses optoelectrical isolation between the AC input channels and the PLC-5 backplane interface.
Q: What chassis systems are compatible with the 1771-IM?
A: The module is designed for installation in Allen-Bradley 1771 I/O chassis used with PLC-5 processors.
Field Installation Guidelines
Install the 1771-IM module in a compatible 1771 I/O chassis slot and secure the module according to rack mounting procedures. Connect field wiring through the specified 1771-WJ wiring arm.
Separate AC field signal wiring from low-level analog or communication cables to reduce electrical interference. Use appropriate grounding practices for enclosure shielding and maintain clear routing between power conductors and control signal wiring.
Verify input voltage levels before connection and confirm LED channel indication after installation. Follow PLC-5 system grounding and wiring documentation when integrating the module into an existing control cabinet.
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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