PLC Mounting Clip | Roll Forming Machine Control System

A PLC mounting clip is a mechanical fastening component used to secure PLC modules to a DIN rail or mounting structure within an electrical control

PLC Mounting Clip

1. Technical Definition

A PLC mounting clip is a mechanical fastening component used to secure PLC modules to a DIN rail or mounting structure within an electrical control cabinet.

It provides a stable attachment point that prevents PLC modules from moving due to vibration or mechanical stress.

In roll forming machines, PLC mounting clips hold automation components such as:

• PLC CPU modules

• Digital input modules

• Digital output modules

• Analog I/O modules

• Communication modules

These clips ensure the PLC system remains securely mounted during machine operation.

2. Where It Is Located

PLC mounting clips are located on the rear side or base of PLC modules where they attach to the DIN rail.

Typical installation locations include:

• PLC automation racks

• DIN rail control panels

• Electrical control cabinets

• Industrial automation systems

They connect the PLC module housing to the 35 mm DIN rail mounting system.

3. Primary Functions

3.1 Secure PLC Modules

Mounting clips hold PLC modules firmly on the DIN rail.

3.2 Prevent Movement

They prevent modules from loosening due to machine vibration.

3.3 Enable Quick Installation

Clips allow modules to snap onto the DIN rail easily.

3.4 Support Modular PLC Systems

They allow modules to be added or removed quickly.

4. How It Works

PLC mounting clips operate as mechanical locking devices.

Typical operation process:

1. The PLC module is positioned against the DIN rail.

2. The mounting clip engages with the rail.

3. The clip locks the module into place.

4. The module remains fixed during machine operation.

5. The clip can be released when the module is removed.

This allows secure but removable module installation.

5. Types of PLC Mounting Clips

Spring-Loaded Mounting Clip

Uses a spring mechanism to lock the module onto the rail.

Sliding Lock Clip

Slides into position to secure the module.

Screw-Lock Mount Clip

Uses a screw mechanism for additional security.

Integrated Module Clip

Built directly into the PLC module housing.

6. Construction & Materials

PLC mounting clips are manufactured using durable materials designed for industrial environments.

Common materials include:

• Reinforced thermoplastic

• Stainless steel springs

• Zinc-plated steel components

• High-strength polymer housings

Important structural features include:

• Rail engagement hooks

• Locking mechanisms

• Spring retention systems

• Release tabs

These components ensure reliable module mounting.

7. Design Considerations

Engineers consider several factors when designing mounting clips.

Important considerations include:

• DIN rail compatibility

• Mechanical locking strength

• Ease of installation and removal

• Resistance to vibration

• Long-term durability

Proper clip design ensures reliable PLC mounting.

8. Load & Stress Conditions

PLC mounting clips must withstand:

• Mechanical vibration from machine operation

• Repeated module installation and removal

• Cabinet temperature variations

• Mechanical stress during maintenance

Industrial clips are designed for long-term reliability.

9. High-Speed Production Considerations

High-speed roll forming machines generate vibration that can affect electrical components.

Secure PLC mounting clips help maintain stable automation systems.

10. Heavy Gauge Applications

Heavy gauge roll forming machines often generate higher vibration levels due to larger motors and mechanical forces.

Secure mounting clips help protect PLC components.

11. Light Gauge Applications

Light gauge roll forming machines rely on compact automation systems mounted using DIN rail mounting clips.

12. Common Failure Causes

PLC mounting clips may fail due to:

• Mechanical fatigue over time

• Excessive force during installation

• Plastic cracking due to aging

• Mechanical damage during maintenance

Proper handling helps prevent clip damage.

13. Symptoms of Mounting Clip Issues

Technicians may observe:

• PLC modules becoming loose on the DIN rail

• Modules shifting inside the cabinet

• Difficulty securing modules during installation

• Increased vibration of control components

These symptoms may indicate clip damage.

14. Installation Requirements

Proper installation of PLC mounting clips includes:

• Aligning the module with the DIN rail

• Engaging the mounting clip correctly

• Ensuring the module locks securely

• Verifying that the module cannot move freely

Correct installation ensures stable PLC mounting.

15. Maintenance Requirements

Routine maintenance should include:

• Inspecting mounting clips for damage

• Checking that modules remain securely mounted

• Verifying DIN rail condition

• Replacing damaged clips when necessary

Regular inspection helps maintain cabinet stability.

16. Typical Replacement Cost

PLC mounting clips are inexpensive mechanical components.

Typical price ranges include:

Standard PLC mounting clip
$2 – $10

Industrial DIN rail mounting clip
$10 – $25

Heavy-duty PLC mounting clip
$25 – $60+

Costs depend on module type and manufacturer.

17. Safety Considerations

Failure of PLC mounting clips may lead to:

• PLC modules becoming loose

• Electrical connection problems

• Communication interruptions between modules

• Potential automation system faults

Secure mounting is essential for reliable PLC operation.

18. Role in Roll Forming Machine Assemblies

PLC mounting clips secure automation components used in roll forming machines including:

• PLC CPU modules

• Input and output modules

• Communication modules

• Power supply modules

• Industrial control equipment

They help maintain stable mounting of the machine’s automation control system.

Engineering Summary

The PLC mounting clip is a mechanical fastening component used to secure PLC modules to DIN rails inside industrial control cabinets.

It:

• Holds PLC modules firmly in place

• Prevents movement caused by vibration

• Enables quick installation and removal

• Supports modular PLC automation systems

• Maintains stable control system mounting

PLC mounting clips are essential components used in roll forming machines to ensure reliable installation of PLC automation hardware.

Technical FAQ

What is a PLC mounting clip?

A PLC mounting clip is a fastening device that secures PLC modules to a DIN rail.

Why are PLC mounting clips used in roll forming machines?

They keep PLC modules securely mounted inside the control cabinet.

Where are PLC mounting clips located?

They are located on the rear side of PLC modules where they connect to the DIN rail.

Can PLC mounting clips be replaced?

Yes, damaged clips can be replaced to restore secure mounting.

What happens if a mounting clip fails?

PLC modules may become loose, which can cause electrical connection issues or system faults.