All You Need to Know About Allen Bradley MSR127T Wiring Diagram

If you’re looking for a reliable and efficient safety relay for your machinery, Allen Bradley MSR127T is a great option. The MSR127T is capable of monitoring dual-channel safety devices such as light curtains, laser scanners, and magnetic switches. It is designed to stop hazardous movements in machines or equipment when a fault is detected. In this article, we will discuss the wiring diagram of Allen Bradley MSR127T and provide you with the necessary information to properly wire the device.

Introduction to Allen Bradley MSR127T Wiring Diagram

The wiring diagram is an essential component of any electrical system or device. It provides a visual representation of the electrical connections and circuits needed to make the system or device work. In the case of the Allen Bradley MSR127T, the wiring diagram shows how to connect the device to dual-channel safety devices and other electrical components to ensure proper operation.

Before we dive into the specifics of the wiring diagram, it’s important to understand the different components of the Allen Bradley MSR127T relay. The relay consists of two channels, labeled A and B. Each channel has a set of input terminals (13, 14, 21, and 22) and a set of output terminals (23, 24, 31, and 32). The relay also has a set of supply voltage terminals (11 and 12) and a set of auxiliary contact terminals (41, 42, 43, and 44).

Wiring Diagram for Allen Bradley MSR127T

The wiring diagram for the Allen Bradley MSR127T can be broken down into three main parts: the power supply wiring, the input wiring, and the output wiring. Let’s take a closer look at each of these parts.

Power Supply Wiring

The power supply wiring is the first step in wiring the Allen Bradley MSR127T. The relay requires a power supply of 24V DC. To connect the power supply, simply connect the positive lead of the power supply to terminal 11 and the negative lead to terminal 12. Make sure to use appropriate wire size and insulation rating for the power supply wiring.

Input Wiring

The input wiring is the next step in wiring the Allen Bradley MSR127T. The relay is designed to work with dual-channel safety devices such as light curtains or laser scanners. Each channel has two input terminals, labeled S11 and S12 for channel A and S21 and S22 for channel B. To wire the safety device to the relay, connect one wire from each channel of the safety device to the corresponding input terminals of the relay. Make sure to follow the manufacturer’s instructions for wiring the safety device, and use appropriate wire size and insulation rating.

Output Wiring

The output wiring is the final step in wiring the Allen Bradley MSR127T. The relay has four output terminals, labeled O13 and O14 for channel A and O23 and O24 for channel B. To wire the output of the relay to the machine or equipment, connect one wire from each output terminal to the corresponding input of the machine or equipment. Make sure to follow the manufacturer’s instructions for wiring the machine or equipment, and use appropriate wire size and insulation rating.

FAQ

1) What is the maximum voltage rating for the Allen Bradley MSR127T relay?

The Allen Bradley MSR127T is rated for a maximum voltage of 250V AC/DC.

2) Can the Allen Bradley MSR127T be used with single-channel safety devices?

No, the Allen Bradley MSR127T is designed to work with dual-channel safety devices only.

3) What is the maximum switching current rating for the Allen Bradley MSR127T relay?

The Allen Bradley MSR127T is rated for a maximum switching current of 6A per channel.

4) What is the expected life cycle of the Allen Bradley MSR127T relay?

The Allen Bradley MSR127T is rated for a minimum of 10 million operations at full load.

5) Does the Allen Bradley MSR127T relay have any built-in diagnostics?

Yes, the Allen Bradley MSR127T has built-in LEDs to indicate power status and fault conditions. The relay also provides fault output signals.

Conclusion

The Allen Bradley MSR127T is an excellent safety relay for machinery and equipment. By following the wiring diagram and manufacturer’s instructions, you can ensure proper operation and safety. The wiring diagram breaks down the wiring process into three main parts, power supply wiring, input wiring, and output wiring. The relay also has built-in diagnostics to aid in troubleshooting. By using the information provided in this article, you can confidently wire the Allen Bradley MSR127T for your safety needs.