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Eaton Moeller Series User Manual

Eaton Moeller Series
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Moeller® series
Manual
Contactor monitoring device
CMD(24VDC), CMDTD
10/12 MN04913001Z-EN
replaces 04/10 AWB2441-1595en
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Eaton Moeller Series Specifications

General IconGeneral
BrandEaton
ModelMoeller Series
CategoryMeasuring Instruments
LanguageEnglish

Summary

CMD Contactor Monitoring Relays

Application of the CMD

Explains CMD use in safety-related circuits for emergency shutdown via contactors.

System Overview

Details the CMD device, power supply requirements, and compatible Eaton components.

Improper Use

Specifies incorrect combinations and configurations to avoid for the CMD device.

Engineering Aspects

Distinction from Other Regulations

Clarifies CMD approval under EN/ISO 13849 and setup per IEC/EN 60204-1.

Performance Level (PL)

Details CMD support for control systems meeting Performance Level "d" as per EN/ISO 13849-1.

Control System Category 3

Explains CMD use in Category 3 systems with DOL or reversing starters.

Average Diagnostic Coverage (DCavg)

Covers DCavg calculation for parallel channels involving CMD and its components.

Mean Time to Dangerous Failure (MTTFd)

Provides formulas and values for MTTFd calculation for CMD and related parts.

Approvals and Standards

Lists IFA approval, CE declaration, UL/CSA approval, and product standards.

Electromagnetic Compatibility (EMC)

States that no specific EMC measures are required for the CMD device.

Installation Guide

Mounting

Describes mounting the CMD device on a top-hat rail in any position.

Connection

Covers connection for DOL/reversing starters and insulation voltage requirements.

Wiring

Details permissible cable cross-sections and tools for wiring CMD relay terminals.

Operating the Device

Function Messages (LEDs)

Explains the function of the two internal LEDs (Contr. and UVR) for status indication.

Test Function

Describes the requirement for regular testing of the undervoltage release via the Test button.

Appendix

Nameplate Information

Shows nameplate details including voltage, certifications, and standards.

Technical Data General

Lists general technical data like lifespan, operating frequency, temperature, and weight.

Dimensions

Provides physical dimensions and clearance requirements for the CMD device.

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