Moog D633-A Series - Page 8

List of Figures
© Moog GmbH User Manual "D633-A Series" (CA80942-001; Version 1.0, 12/08) vi
List of Figures
Figure 1: Representative depiction of a direct drive servovalve...................................................................11
Figure 2: Representative depiction of a permanent magnet linear force motor ........................................... 12
Figure 3: 4-way operation with mechanical fail-safe function F (hydraulic symbol) ..................................... 16
Figure 4: 3-way operation with mechanical fail-safe function F (hydraulic symbol) ..................................... 16
Figure 5: 2-way operation with mechanical fail-safe function M (hydraulic symbol)..................................... 17
Figure 6: 2x2-way operation with mechanical fail-safe function M (hydraulic symbol)................................. 17
Figure 7: Nameplate (example).................................................................................................................... 18
Figure 8: Flow signal characteristic curve .................................................................................................... 29
Figure 9: Setup for measuring the flow signal characteristic curve .............................................................. 29
Figure 10: Spool stroke signal characteristic curve........................................................................................ 30
Figure 11: Pressure signal characteristic curve of the valves with zero lap ................................................... 30
Figure 12: Setup for measuring the pressure signal characteristic curve ...................................................... 30
Figure 13: Step response of the spool stroke................................................................................................. 31
Figure 14: Frequency response of the spool stroke ....................................................................................... 31
Figure 15: Installation drawings for valves with M12 or MIL valve connector, dimensions in mm (inches).... 36
Figure 16: Mounting pattern of mounting surface as per ISO 4401-03-03-0-05, dimensions in mm (inches) 37
Figure 17: M12 valve connector X1 (circuit and pin assignment)................................................................... 43
Figure 18: MIL valve connector X1 (circuit and pin assignment).................................................................... 43
Figure 19: Grounding screw........................................................................................................................... 44
Figure 20: Repair quality seal......................................................................................................................... 61