Moog D633-A Series - Default Chapter; Table of Contents

Table of Contents
© Moog GmbH User Manual "D633-A Series" (CA80942-001; Version 1.0, 12/08) i
Table of Contents
Copyright ................................................................................................................................................... A
List of Tables ..............................................................................................................................................v
List of Figures ............................................................................................................................................vi
1 General Information ..................................................................................1
1.1 Notes on the user manual........................................................................................................... 1
1.1.1 Validity and subject to change without notice................................................................. 1
1.1.2 Completeness ................................................................................................................ 1
1.1.3 Storage location ............................................................................................................. 1
1.1.4 Typographical conventions............................................................................................. 2
1.2 Supplementing documents ........................................................................................................ 2
1.3 Manufacturer’s declaration......................................................................................................... 3
1.4 Registered trademarks................................................................................................................ 3
1.5 Warranty and liability .................................................................................................................. 4
2 Safety .........................................................................................................5
2.1 Intended operation ...................................................................................................................... 5
2.2 Handling in accordance with safety requirements................................................................... 6
2.3 Responsibilities ........................................................................................................................... 7
2.4 Selection and qualification of personnel .................................................................................. 8
2.5 Structural modifications ............................................................................................................. 8
2.6 Occupational safety and health ................................................................................................. 9
2.7 General safety instructions ........................................................................................................ 9
2.8 Pressure limitation .................................................................................................................... 10
3 Product Description................................................................................11
3.1 Function and mode of operation.............................................................................................. 11
3.1.1 Representative depiction of the valve .......................................................................... 11
3.1.2 Permanent magnet linear force motor.......................................................................... 12
3.1.3 Signal interfaces........................................................................................................... 12
3.2 Safety function/fail-safe ............................................................................................................ 13
3.2.1 Mechanical fail-safe functions ...................................................................................... 13
3.2.1.1 Valves with fail-safe function F, D or M ................................................... 14
3.2.1.2 Mechanical fail-safe state........................................................................ 14
3.2.1.3 Fail-safe identification.............................................................................. 14
3.2.1.4 Bushing-spool identification..................................................................... 15
3.2.2 Restarting the valve...................................................................................................... 15
3.3 Hydraulics .................................................................................................................................. 16
3.3.1 Open-loop flow control (Q-control) ............................................................................... 16
3.3.2 Valve configurations and hydraulic symbols ................................................................ 16
3.3.2.1 4-way and 3-way operation ..................................................................... 16
3.3.2.2 2-way and 2x2-way operation ................................................................. 17
3.3.3 Leakage port Y............................................................................................................. 17
3.3.3.1 Y-identification......................................................................................... 17
3.4 Activation ................................................................................................................................... 18