Siemens Sinumerik 840D Series Function Manual page 243
Hla module
Hide thumbs
Also See for Sinumerik 840D Series:
- Function manual (920 pages) ,
- Diagnostics manual (714 pages) ,
- Operating turning (713 pages)
Table of Contents
Advertisement
10.03
10.03
Flow
characteristic,
linear
Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
The stepless spool movement, and thus the change in throttle cross-section at
the control edges, results in a corresponding flowrate, which is represented as a
function of the spool travel s or of the electrical input signal U (manipulated vari-
able). The flow is dependent on the on the pressure drop, in addition to the
opening cross-section,
Q X
as defined by the law of flow.
Flow rate Q
O B
P T
P
O
Fig. A-6
Linear flow rate characteristic
Window in spool sleeve
Î Î Î Î Î Î Î
Î Î Î Î Î Î Î
Î Î Î Î Î Î Î
Î Î Î Î Î Î Î
Î Î Î Î Î Î Î
Spool stroke
Fig. A-7
Control window in spool sleeve
A.1 Servo solenoid valves
D p
P
O
B
T
O B
P T
B After
T
Q
A Hydraulics
Spool travel s
Input signal U
U
A-243
- Quick Links:
- Typical Applications
- General
- Drive Configuration
Hide quick links:
Advertisement
Table of Contents
