Keri Systems Isolation Relay H IRP 1 Installation Guide
User Manual: Keri Systems IRP-1 Isolation Relay Installation Guide Installation Guide
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IRP-1 Isolation Relay Installation Guide 1.0 Purpose Keri controllers are designed with built-in voltage transient suppression. The controller ship kits also provide external transorbs that Keri 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. 2. Magnetic locks and similar devices Dry-contact devices for use with heavy-duty solenoids such as turnstiles, vehicle gates, and overhead 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. 2.0 Kit Contents The IRP-1 kit is made up of the following items: • • • One relay PCB One transorb (1.5KE39C nonpolarized) Double sticky-sided foam tape (for PCB mounting) 3.0 Specifications The isolation relay is rated at 12 A max @ 28 VDC. 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. 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 12 VDC. Page 1 of 4 P/N: 01833-001 Rev. H IRP-1 Isolation Relay Installation Guide 4.1 Wiring to an External Locking Device IRP-1 Power Terminal Block Controller Power Ground COM N/O N/C –+ Relay Terminal Block Connection for a Fail-Secure Device External Lock Device NO / Lock Common Connection for a Fail-Safe Device NC / Lock Transorb – 12 VDC Lock Power Supply + – + 12 VDC Controller Power Supply Page 2 of 4 Other Pins Keri Controller P/N: 01833-001 Rev. H IRP-1 Isolation Relay Installation Guide 4.2 Wiring to a Dry Contact Device IRP-1 Power Terminal Block Controller Power Ground COM N/O N/C –+ Relay Terminal Block Connection for a Fail-Secure Device Dry Contact Device NO / Lock Common Connection for a Fail-Safe Device NC / Lock Transorb – + 12 VDC Controller Power Supply Page 3 of 4 Other Pins Keri Controller P/N: 01833-001 Rev. H IRP-1 Isolation Relay Installation Guide 5.0 Contact Keri Systems Keri USA Keri UK, Ireland, Europe 2305 Bering Drive San Jose, CA 95131 Unit 17 Park Farm Industrial Estate Ermine Street Buntingford Herts SG9 9AZ UK Telephone: (800) 260-5265 (408) 435-8400 Telephone: + 44 (0) 1763 273 243 Fax: (408) 577-1792 Fax: + 44 (0) 1763 274 106 Web: www.kerisys.com Web: www.kerisystems.co.uk E-mail: sales@kerisys.com techsupport@kerisys.com E-mail: sales@kerisystems.co.uk tech-support@kerisystems.co.uk end of document Page 4 of 4 P/N: 01833-001 Rev. H
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