原裝VIKCERS比例放大板EATON比例放大板特點(diǎn)
roportional valve solenoids are current
controlled. This current is usually
regulated by varying the command
voltage into the amplifier. The greater
the current to the solenoid coil, the
greater will be the valve spool
displacement (travel) and oil flow
through the valve. By controlling the rate
of current increase or decrease, the
spool displacement or valve opening
rate will increase or decrease resulting
in acceleration or deceleration control of
the hydraulic actuator and its working
load.
A typical circuit for a single stage
feedback type valve in an open (outer)
loop application is shown in Figure 1. A
24VDC power supply is connected to
pins bdz32 (+) and bdz30 (–). An enable
switch connected between bdz32 and
pin z2a is required. The valve is
connected according to the circuit
diagram. A (+) or (–) 10V at 5mA
reference is provided for command
voltage control. When wired as shown in
the diagram, the control pots should be
2000 ohms or greater. If the pot is to be
connected across the (+) or (–) pins z2
and b2, the minimum pot size should be

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原裝VIKCERS比例放大板EATON比例放大板特點(diǎn)

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