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sprecher + schuh CEP7 User Manual

Solid-state overload relay
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Summary of Contents for sprecher + schuh CEP7

  • Page 2 CEP7 Solid-state Overload Relay User Manual Important User Information Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.

  • Page 3: Table Of Contents

    Troubleshooting CEP7 Solid-state Overload Relay ........15 Accessory Modules .
  • Page 4 Table of Contents Notes: Sprecher+Schuh Publication CEP7-UM013B-EN-P - March 2022...

  • Page 5: About This Publication

    This manual describes how to install, configure, operate, and troubleshoot the CEP7 Solid-state Overload Relay. Terminology Throughout this publication, we also refer to the CEP7 Solid-state Overload Relay as the CEP7 overload relay and CEP7 relay. These terms are interchangeable. Additional Resources These documents contain additional information concerning related products from Sprecher+Schuh.
  • Page 6 Preface Notes: Sprecher+Schuh Publication CEP7-UM013B-EN-P - March 2022...

  • Page 7: Description

    The device is split between two offerings: a Basic (Cat. No. CEP7-1EE) and Advanced (Cat. No. CEP7-1EF) version. The Basic offering allows adjustable trip current and limited trip class selection. The Advanced version offers the same adjustable trip current, a larger selection of trip classes, and the ability to add additional accessory modules.
  • Page 8 Chapter 1 Product Overview Notes: Sprecher+Schuh Publication CEP7-UM013B-EN-P - March 2022...

  • Page 9: Before You Begin

    Trip Current and Trip Class. This chapter also describes the accessory modules that are available for the Advanced (CEP7-1EF) CEP7 relay. Before You Begin Before you configure the CEP7 relay, you must install it onto a contactor or DIN Rail, or mount it on a panel. See page 5 for a list of related installation instructions.

  • Page 10: Set The Trip Current

    Cat. No. CEP7-1EGJ Universal Protection Expansion Module The Cat. No. CEP7-1EGJ Universal Protection expansion module adds Ground fault and Jam protection to the Advanced version (CEP7-1EF) of the CEP7 relay. The add-on module lets you select the jam current level, jam trip delay, and ground fault level.
  • Page 11 Chapter 2 System Operation and Configuration Figure 2 - Cat. No. CEP7-1EGJ Universal Protection Expansion Module Settings Accessory Diagnostic LED Jam Level Jam Delay Ground Fault Level Note Number Feature Information Jam Level Set the FLA percentage for Jam Protection. Selectable from 125…600% FLA.

  • Page 12: Cat. No. Cep7-1Err Electronic Reset And Indication

    Figure 3 Figure 5 show the basic wiring for the CEP7-1ERR Module. Figure 5 - Cat. No. CEP7-1ERR Electronic Reset and Indication Display Module Wiring Note Number Information Cat. No. CEP7-ERID or CEP7-1ERIDN Remote Indication and Display module. External power must be user supplied. 24…240V, 47…63 Hz or DC.

  • Page 13: Cat. No. Cep7-Erid Or Cep7-1Eridn Remote Indication And Display Module

    Module The remote indication and display modules let you view the status of the CEP7 relay from the front of a panel. Cat. No. CEP7-ERID also features a reset button. The light-emitting diode (LED) status indicators notify you of the status of the overload relay.
  • Page 14 Chapter 2 System Operation and Configuration Notes: Sprecher+Schuh Publication CEP7-UM013B-EN-P - March 2022...

  • Page 15: Cep7 Solid-State Overload Relay

    CEP7 Solid-state Overload All CEP7 relay units include a trip indicator window on the front of the unit labeled “Status”. If the red indicator is not visible, the overload relay is not Relay tripped.

  • Page 16: Remote Indication Display

    If the issue persists, consider replacing the communication interface cable. Remote Indication Display There are four LED status indicators on the front of the Cat. No. CEP7-ERID and CEP7-1ERIDN modules. These status indicators show Module Power/ Status, Overload, Phase Loss, and Fault Status. See Figure Figure 7 - Cat.
  • Page 17 11 Flashing Test Trip (1) An Overload warning occurs when the CEP7 overload reaches 90% thermal capacity utilization (TCU ). The overload trips at 100% TCU. (2) Phase Loss warning is active if the overload detects a Phase Loss condition. The warning is maintained for 3 seconds before a Phase Loss Trip occurs.
  • Page 18 Chapter 3 Troubleshooting Notes: Sprecher+Schuh Publication CEP7-UM013B-EN-P - March 2022...

  • Page 19: Cep7 Wiring Configurations

    Appendix Wiring Diagrams CEP7 Wiring Configurations The following pages illustrate various wiring configurations for the CEP7 Solid-state Overload Relay. Figure 9 - 3-Phase, Full-voltage Direct-on-line Starter, NEMA Symbology Short-circuit Protection Device Connection must be fitted by the user Figure 10 - 3-Phase, Full-voltage Direct-on-line Starter, IEC Symbology...
  • Page 20 Overload Relay T1/2 T2/4 T3/6 T2/4 T1/2 T3/6 For more information about how to install an external Current Transformer, see Bulletin CEP7 Core Balanced Ground Fault Sensor Application and Installation Instructions, publication 42053-002-01 (2). Sprecher+Schuh Publication CEP7-UM013B-EN-P - March 2022...
  • Page 21 CEP7 Solid-state Overload Relay User Manual Notes: Sprecher+Schuh Publication CEP7-UM013B-EN-P - March 2022...
  • Page 22 Sprecher+Schuh maintains current product environmental information on its website at https://www.sprecherschuh.com/library/approvals/compliance.html www.sprecherschuh.com Power, Control and Information Solutions Headquarters Sprecher + Schuh, 15910 Int. Plaza Dr., Houston TX 77032, USA Publication CEP7-UM013B-EN-P - March 2022 Copyright © 2022 Sprecher+Schuh, Inc. All rights reserved. Printed in the U.S.A.

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