Danfoss Product Reliability Data (MTTF) LC/KC Motor Application guide
Functional Safety
Product Reliability Data (MTTF)
LC/KC Motor
powersolutions.danfoss.com
Functional Safety
LC/KC Motor Reliability Data (MTTF)
Revision history Table of revisions
Date Changed Rev
November 2017 First edition 0101
2 | © Danfoss | November 2017 AB00000082en-US0101
Functional Safety
LC/KC Motor Reliability Data (MTTF)
Contents
Introduction
Overview..............................................................................................................................................................................................4
Danfoss Component
LC Motor (30cc), and KC Motor (38cc).......................................................................................................................................5
Intended Use......................................................................................................................................................................................5
Results...................................................................................................................................................................................................5
Standards and Assumptions
Calculations........................................................................................................................................................................................ 6
MTTF for Individual Motor Function..........................................................................................................................................6
Component Information
F1: Safe Controllability (Motor at Demanded Displacement).......................................................................................... 7
References
List of References..............................................................................................................................................................................8
©
Danfoss | November 2017 AB00000082en-US0101 | 3
Functional Safety
LC/KC Motor Reliability Data (MTTF)
Introduction
This technical report states the MTTF for a 30cc LC & 38cc KC motor configuration.
Overview
This MTTF data has been compiled by the engineering team responsible for the LC/KC Motor. These are
professionals at Danfoss, who have the authority and technical knowledge to calculate the MTTF Data for
this product based on the standards set in place by both the industry and/or Danfoss.
The purpose of this document is to assist in the transfer of MTTF information for the given product from
Danfoss to the appropriate party in a way which will result in a clear understanding and documentation
on how we derived it. This MTTF information is provided to assist in calculating the overall MTTF of a
complete or partially complete piece of machinery.
Danfoss cannot be held responsible for the suitability of these calculated MTTF values for use in the
calculation of the overall machinery MTTF values. The MTTF values for the LC/KC Motor are based on a
specific machine use, operating environment, and/or duty cycle as stated by the standards set in place by
both the industry and/or Danfoss. This communication along with any attached Danfoss drawings,
sketches, or data is transmitted in confidence.
No information stated in this document or any attachments or supplements may be reproduced or
disclosed in whole or in part without written permission of Danfoss. Further, neither these documents
nor any attachments are a warranty of any sort by Danfoss or a guarantee of machine suitability for its
intended purpose. It remains the responsibility of the machine manufacturer to ensure overall machine
functionality and overall machine safety.
We recommend consulting the functional safety cross BA team before applying the document to the
customer.
4 | © Danfoss | November 2017 AB00000082en-US0101
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