Siemens SINAMICS S120 System Manual page 242
Hydraulic drive
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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Appendix
A.3 Hydraulic
Linearization of flow rate characteristic with a transition point
The valve characteristic with transition point is linearized in the HLA module to match it to the
closed-loop control of the overall drive (cylinder). No steady-state operating point should be
defined in the area of the transition point.
The corresponding valve data are stored in the HLA module and automatically
parameterized when the article number is entered.
Figure A-10
Rated flow rate
The rated flow rate expresses the flow rate with fully opened valve in relation to a specific
pressure drop per control edge.
The flow rate for specific pressure conditions is calculated according to fluid-flow law by the
following formula:
Asymmetrical flow rate characteristic
Also see Chapter "Selection of servo solenoid valves (Page 39)".
242
Electrical valve transition point compensation
System Manual, 04/2015, 6SL3097-4BA00-0BP1
Hydraulic Drive
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