IRP-1 Isolation Relay Kit Installation Guide

IRP-1 Isolation Relay Kit Installation Guide

1.0 Purpose

Keri controllers are designed with built-in voltage transient suppression. The controller ship kit also provides external transorbs that Keri highly recommends installing.

For most applications, this level of protection is more than adequate. However, there are certain applications that can require additional protection.

 

Typically these are:

  1. Magnetic locks and similar devices.
  2. Dry-contact devices for use with heavy-duty solenoids such as turnstiles, vehicle gates, and over-head doors. For these applications, the IRP-1 should be used to isolate the controller from the transients these devices can generate, ensuring reliable protection and operation of the controller.

 

For these applications, the IRP-1 should be used to isolate the controller from the transients these devices can generate, ensuring reliable protection and operation of the controller.

 

 2.0 Kit Contents

The IRP-1 kit is made up of the following items:

  • One relay PCB
  • One transorb (1.5KE39C non-polarized)
  • Double sticky-sided foam tape (for PCB mounting)

3.0 Specifications

The isolation relay is rated at 12A max@28VDC.

 

4.0 Wiring Diagrams

This document provides generic drawings for wiring to an external locking device (such as a magnetic lock or door strike) and to a dry-contact device (such as a switch or relay controlling a motor for a parking barrier or power gate). Please refer back to the installation guide for the Keri controller you are installing to determine the specific terminal blocks and pins to which these wiring connections are made. The diagrams on the next page are based on the PXL-500 controller.

There are two wiring paths shown from the external lock to the N/O and N/C connections: one for a fail-secure device and one for a fail-safe device. Review the drawing and ensure you are making the correct connection for your application. Note: Install the supplied transorb as near to the external locking device or dry-contact device as possible. Do not install the transorb if the device is being powered with greater than 12VDC.

 

4.1 Wiring to an External Locking Device 

 


4.2 Wiring to a Dry Contact Device 


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