MVD – Motorized valve drive
Block SymbolLicensing group: STANDARD
Function Description
The MVD block simulates a servo valve. The UP (DN) input is a binary command for opening (closing) the valve
at a constant speed ,
where tv is a parameter of the block. The opening (closing) continues for
() until the
full open (full
closed ) position
is reached. The full open (full closed) position is signalized by the end switch HS (LS). The initial position
at start-up is .
If or
, then
the position of the valve remains unchanged (neither opening nor closing).
Inputs
UP | Open | bool |
DN | Close | bool |
Outputs
y | Valve position | double |
HS | Upper end switch | bool |
LS | Lower end switch | bool |
Parameters
y0 | Initial valve position | double |
tv | Time required for transition between and [s] 10.0 | double |
hilim | Upper limit position (open) 1.0 | double |
lolim | Lower limit position (closed) | double |
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