Chapter 4 Parameter Functions
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HES Series
4-16
begins. As the valve opening action responds rather slowly, pressure surges instantaneously and returns
to normal until the valve opens completely. In order to prevent this phenomenon, users can set the value
open delay time to delay the flow output.
Parameter 00-33
Pressure
C ommand
Flow
Command
Before pressure
feedback adj ustment
After pressure
feedback adjustment
Before flow feedback
adjustment
After flow feedback
adjustment
High/Low Flow Reference Point Switch
Control Mode
VF FOCPG
FOCPM
Factory setting: 50.00
Settings 0.00~100.00 %
When pressure feedback reaches the reference point in Pr.00-34 of the Pressure Command*, if the value
in Pr.03-05 to Pr.03-07 of the Multi-function Output is “44: Ram Pump High/Low Flow Switch Signal”, the
ram pump slope switch singal will be output.
Over pressure Detection Level
Control Mode
VF FOCPG
FOCPM
Factory setting: 230
Settings 0~250 Bar
When pressure feedback exceeds the value set in this parameter, the “ovP Over Pressure” error
message will be generated.
Pressure Feedback Fault Detection
Control Mode
VF FOCPG
FOCPM
Factory setting: 0
Settings 0 : No function
1: Enable (for pressure feedback output signal at 1-5V only)
When the parameter is set to “1”, if the pressure feedback output signal is lower than 1V, the “Pfbf
Pressure Feedback Fault” error message will be generated.
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