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Method for parameter debugging and setting of constant pressure water supply variable frequency cont
Method for setting commissioning parameters of constant pressure water supply variable frequency control cabinet
1. Preparation before debugging
System check: Confirm that the pressure sensor wiring is correct and the feedback signal is normal (such as 4-20mA analog output)
Parameter backup: Back up the current parameters through the inverter operation interface to avoid system abnormalities caused by debugging errors.
2. Core parameter settings
PID parameters:
Proportional coefficient (P): The initial value is recommended to be set at 50%, and it should be gradually adjusted according to pressure fluctuations
Integration time (I): Typically set to 2-5 seconds to eliminate steady-state error
Differential time (D): Set it to 0.1-0.5 seconds to suppress overshoot
Pressure calibration:
Enter the parameter menu (such as P03), and set the pressure range according to the sensor range (such as 0-10kg)
Adjust the target pressure value (e.g. 5kg) using the up and down arrows, save it, and exit.
Frequency limitation:
Set the upper limit frequency to 50Hz and the lower limit frequency to 5Hz to avoid motor overload or idling.
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