dooch NSQ Series, Manual

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Enter the maximum value that the pressure sensor can measure.
By entering capacity of pressure sensor attached to the drive being used, it is possible
to display the currently measured pressure.
Example) In case the using sensor has 10bar, enter 10.0.
If the using sensor has 16bar, enter 16.0.
And enter the rated value of the pressure sensor for normal pump operation.
Pr-03 : Sensor 1 Capacity Setup
It corrects pressure variation between analog or digital pressure meter and the one
displayed on drive FIND.
Pr-04 : Sensor 1 Correction Setup
It sets up freezing prevention mode of pump.
It is to prevents pump from being broken due to low temperature (below zero) in winter using ambient temperature
sensor information within the drive. The function is operated with a frequency not generating pressure between
0~10 seconds and maintained as stopped status between 11~59 seconds based on 1 minute.
This function is to prevent the pump from freeze and burst by generating frictional heat upon rotation within
pump casing.
Pr-11 : Freezing Prevention Function
It sets up start variation pressure value. That is, the operation starts when the current
pressure has larger variance than the specified value comparing to setting.
In case of alarm occurrence, operation does not start.
Pr-12 : Start Variation
When the pump pressure reaches to setting and maintained for longer than setup time, it starts to reduce
speed. If there is pressure difference as much as starting variation, the pump starts to operate again during
decrease of speed and if not, it stops.
Pr-13 :
Stopping Time after Reaching Setup Pressure
Drive
Pr Mode (Pump Control Mode)
Functional Description Setup Data
0 (Factory Setting) OFF
1 ON
Functional Description Setup Data
0 Deactivation of Pressure Sensing
1 ~ 200 [sec] Setting the time for pressure sensing(Factory setting 30(Sec)