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Functional Safety
Product Reliability Data (MTTF) for
H1P069-280
www.danfoss.com
Functional Safety
H1 Pumps 069-280 Product Reliability Data
Revision history |
Table of revisions |
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Date |
Changed |
Rev |
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April 2021 |
Changed document number from '70086000' to 'AB159286485026' and added H1 280 |
0204 |
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information |
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May 2015 |
Added CCO information |
CB |
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April 2014 |
Danfoss layout |
CA |
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May 2013 |
Revise Functions - EC1035798 |
B |
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August 2012 |
First edition - EC1014364 |
A |
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2 | © Danfoss | April 2021 |
AB159286485026en-000204 |
Functional Safety |
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H1 Pumps 069-280 Product Reliability Data |
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Contents |
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Reliability Data (MTTF) |
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Danfoss Component |
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H1 Pumps............................................................................................................................................................................................ |
5 |
Intended Use...................................................................................................................................................................................... |
5 |
Introduction........................................................................................................................................................................................ |
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Results................................................................................................................................................................................................... |
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Mission Time....................................................................................................................................................................................... |
6 |
Standards and Assumptions |
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Standards............................................................................................................................................................................................. |
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Criteria............................................................................................................................................................................................. |
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Component Information and Calculations |
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MTTFd Individual Pump Functions............................................................................................................................................. |
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F1: Safe Controllability (Pump at Demanded Displacement)........................................................................................... |
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F2: Safe Stop (Pump to Neutral).................................................................................................................................................. |
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F3: Prevent Unexpected Movement....................................................................................................................................... |
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F4: CCO Function............................................................................................................................................................................ |
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F5: Safe Start.................................................................................................................................................................................... |
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F6: Safe/Correct Direction of Rotation/Movement (Hydraulic Motor/Cylinder)..................................................... |
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References |
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List of References........................................................................................................................................................................... |
12 |
© Danfoss | April 2021 |
AB159286485026en-000204 | 3 |
Functional Safety
H1 Pumps 069-280 Product Reliability Data
Reliability Data (MTTF)
Transfer of Mean Time to Failure (MTTF) data for the given product from Danfoss to the appropriate party.
This Mean Time to Failure (MTTF) data has been compiled by the Business Area engineering team responsible. 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 data 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 data 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 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.
4 | © Danfoss | April 2021 |
AB159286485026en-000204 |
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