Allen-Bradley 1771-IFF/A PLC-5 Frequency Analog Input Module
$123.00
$320.00
Description
Allen-Bradley 1771-IFF/A PLC-5 Frequency Analog Input Module
The Allen-Bradley 1771-IFF/A, also cataloged as the 1771-IFF/A Frequency Analog Input Module, operates as a dedicated hardware component for frequency signal acquisition within PLC-5 I/O systems. The module converts frequency-based sensor signals into digital values through isolated analog input processing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-IFF/A |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 1.15 lbs |
| Dimensions | 237.5 x 183 x 55 mm |
| Operating Temp | 0-60 deg C |
| Power Consumption | Approximately 6 W |
| Product Type | Frequency Analog Input Module |
| Product Line | PLC-5 |
| Input Channels | 16 single-ended or 8 differential |
| Signal Type | Frequency inputs |
| Frequency Range | Typically 0.1 Hz to 10 kHz |
| Resolution | 12-bit plus sign |
| Accuracy | +/-0.05% of full scale |
| Conversion Time | Approximately 2.5 ms per channel |
| Isolation | Optical isolation between field inputs and backplane |
| Backplane Current | Approximately 1.2 A at 5 VDC |
| Input Impedance | High impedance input interface |
| Wiring Arm | 1771-WQ |
| Humidity | 5-95% non-condensing |
| Storage Temperature | -40 to 85 deg C |
| Indicators | Status LEDs |
PLC-5 Frequency Signal Processing and Industrial Control Interface
The 1771-IFF/A provides frequency input conversion for PLC-5 control architectures by measuring frequency-based signals from transducers and transferring processed data through the 1771 backplane interface.
The module supports I/O density scaling through PLC-5 rack configurations and uses backplane bus communication for controller data exchange. Optical isolation separates field input circuits from controller electronics. Configuration compatibility depends on the installed PLC-5 processor, adapter hardware, and firmware revision.
Frequently Asked Questions
Q: What type of signals can the 1771-IFF/A process?
A: The module processes frequency-based input signals from industrial transducers such as flow sensors, speed sensors, and other frequency-output devices.
Q: How are the input channels configured on the 1771-IFF/A?
A: The module supports 16 single-ended inputs or 8 differential inputs depending on system configuration.
Q: What is the power requirement of the module?
A: The module requires approximately 1.2 A from the 5 VDC PLC-5 backplane supply.
Field Installation Guidelines
Install the 1771-IFF/A module into a compatible 1771 PLC-5 chassis slot after verifying chassis power isolation and available backplane capacity. Connect frequency signal wiring through the specified 1771-WQ wiring arm and confirm signal polarity before commissioning.
Route frequency input cables separately from high-current switching conductors to reduce electromagnetic interference. Use shielded sensor wiring where required and terminate cable shields according to the cabinet grounding design.
Verify input channel configuration, frequency scaling parameters, and PLC-5 data mapping before operation. Confirm module status indicators and controller diagnostics after installation.
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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