Allen-Bradley 1747-FC Ferrite Collar for SLC 500 EMI/RFI Suppression

Technical Specifications Breakdown

Key parameters for the 1747-FC are listed below for quick reference:

Industry Applications for Reliable Communication

Preventing Data Corruption in Manufacturing Cells

In automated production lines, SLC 500 controllers communicate with HMIs or programming terminals via RS-232. Without proper filtering, nearby motors or variable frequency drives can induce noise, corrupting data. The 1747-FC attenuates that noise, preserving signal integrity.

Ensuring Compliance in Regulated Environments

Facilities subject to the European EMC Directive must limit electromagnetic emissions. Using this ferrite collar helps meet those requirements without redesigning cable routing or adding expensive filters.

Reducing Unplanned Downtime

Noise-related communication errors often cause intermittent faults that are hard to diagnose. By installing the collar at the cable exit point, engineers eliminate a common failure mode, reducing troubleshooting time.

Installation & Setup Guidance

Place the 1747-FC at the location where the RS-232 cable exits the SLC 500 module. Snap the collar around the cable; the plastic housing holds it securely. No tools or additional hardware are required. Ensure the collar is positioned as close to the module as possible for maximum suppression. This low-complexity installation takes seconds and can be performed without powering down the controller.

Maintenance & Reliability

The ferrite material and plastic housing require no routine maintenance. Periodically inspect the collar for physical damage or displacement. If the cable is moved or replaced, reattach the collar in the same position. The component is passive and does not wear out under normal conditions, providing long-term noise suppression.

Solving Noise Interference in SLC 500 Systems

Electrical noise can disrupt communication between controllers and programming devices, leading to data errors or system instability. The Allen-Bradley 1747-FC ferrite collar addresses this challenge directly by suppressing electromagnetic interference (EMI) and radio frequency interference (RFI) on RS-232 cables. Designed as part of the SLC 500 series, this accessory ensures reliable data transmission in industrial environments.

Compatibility & Integration

The 1747-FC is specifically designed for RS-232 cables used with Allen-Bradley SLC 500 controllers. It is compatible with models 1747-L541, 1747-L542, and 1747-L543. No configuration or software changes are needed. Simply attach the collar to the cable, and it begins filtering interference immediately.

Selection Guide & Purchasing Advice

When ordering the 1747-FC, verify that your controller model is among the compatible list (1747-L541, 1747-L542, 1747-L543). AutoDCSTech stocks this part and can advise on quantity for multi-cable setups. Please verify current lifecycle status and availability with AutoDCSTech before ordering.

Troubleshooting & Common Issues

If communication errors persist after installing the collar, check that it is positioned at the cable exit point of the module. Confirm the collar is fully closed around the cable. If noise remains, the source may be extremely high; consider additional shielding or ferrite collars on other cables. The 1747-FC alone resolves most typical EMI/RFI problems in SLC 500 systems.