Parameter No.

Function description

Setting rang

Factory default

Pr068

Parameter lock/restore settings (return to the factory default needs to power-off completely and repower-on)

The factory default is displayed as five flashing “8”, and any key shall be pressed at this time.

(it takes 5s-8s to return to the factory default.)

dr0000: All parameters can be readable and writable

d0001: All parameters can be readable but not writable

d0000-

d0019

d0000

220V model

d0010: Restore to single-phase water pump 0-5V factory parameters

d0017: Restore to single-phase water pump 4-20mA factory parameter

d0018: Restore to single-phase pump 0.5-4.5V factory parameters

Pr000

Main frequency source selection

d0000- d0004

d0001

Note: 0: frequency can be modified by the up and down keys on the panel.

1: 0-5V analog quantity input (common for water supply)

2: Control the main frequency through RS485

3: 4-20mA input (common for water supply)

Pr001

Operation instruction source

d0000- d0004

d0000

      0: panel key of start and stop

      1: external terminal of start and stop

Pr034

X4 multi-function terminal function selection

d0001- d0022

d0019

      19: enable PID function

Pr035-

Pr123

******

*****

*****

Pr124

Password setting of the frequency converter

d0000-

d9999

0168

The parameter modification interface can not be entered until the correct password is input.

Pr126

Time (unit: minute) can be automatically reset after the water shortage.

d0000-

d9999

d0030

Pr127

Automatic reset function for water shortage protection (for water shortages only)

d0000-

d0001

d0000

0: it is forbidden to start the automatic reset

1: enable automatic reset and start the frequency converter

Pr128

 The corresponding voltage of the pressure gauge 0MPa

d00.00- d10.00V

d00.15

0.15: 0-5V compensation value

0.5: 0.5-4.5V compensation value

1.0: 4-20mA compensation value

Pr129

The corresponding voltage when the pressure gauge is in full scale (it can be used to calibrate pressure value)     

d00.00- d10.00V

d05.00

4.50: 0.5-4.5V pressure sensor corresponding value

5.00: Remote transmission pressure gauge/4-20mA pressure transmitter corresponding value

Pr130

Scale setting of the remote transmission pressure gauge/ pressure transmitter (unit: Mpa)

d00.00- d10.00

d00.60

Pr131

PID target value (Mpa)

d00.01- d01.00 Mpa

d00.25

Setting pressure value SV can be modified by directly pressing the up and down keys in the pressure display state; Note: 0.1Mpa=1 kilogram pressure

Pr132

Proportionality constant (P)

d0000- d0999

d0055

Pr133

Integration time (I)

d0000- d0999

d0009

Pr134

Differential time (I)

d0000-

d0100

d0000

Pr135

PID target source selection

d0000-

d0001

d0000

d0000: determined by Pr0131

d0001: determined by external analog quantity (0-10V)

Pr136

PID upper limit (%)

d0000- d0100

d0100

100% of the corresponding frequency is 50HZ.

Pr137

PID lower limit (%)

d0000- d0100

d0040

40% of the corresponding frequency is 20HZ.

Pr138

Shutdown pressure level (%)

d0000- d0200

d0090

Note: shutdown pressure= setting pressure*Pr138

Pr139

Continuous time (seconds) of shutdown pressure level

d000.0-

d999.9s

d030.0

Note: within the setting time, if the actual pressure has always been greater than or equal to the shutdown pressure level, the frequency converter will start to decrease frequency to the sleep frequency;

Pr140

Wake-up level (%) (Wake-up pressure = setting pressure* Pr140)

0～100%

d0080

Note: When the actual pipeline pressure is less than the wake-up pressure, the frequency converter starts automatically;

Pr 141

Sleep frequency

d000.1—d060.0Hz

d025.0

Note: If the frequency converter runs at the frequency within the time set by Pr142, and the actual pipeline pressure has always greater than or equal to the shutdown pressure, the frequency converter will stop automatically;

Pr142

Continuous time (s) of sleep frequency

d000.1—d999.9s

d30.00

Pr143

High-speed operation time (s) in frequency conversion of 50HZ:

d0001 —d9999s

d0060

After the time is up, the frequency conversion stops outputting. After the interlocking time expires, the power frequency relay shall be turned on to switch to the power frequency state.

Pr144

Interlocking time between power frequency and frequency conversion (s)

d000.1—d600.0s

d002.0

Pr145

Operation time of the power frequency (s)

d0060

d0060

After the power frequency operation time is up, if the actual pressure is not greater than 110% of the setting pressure, it will always run in the power frequency state.

Pr146

Power frequency state

d0000-

d0001

d0000

Note: d0000: there is no power frequency contactor

d0001: There is a power frequency contactor

Pr147

Pipe-burst pressure/pressure is too low (MPa)

d00.00—d10.00MPa

d00.05

Note: In the setting time of Pr149, when the actual pipeline pressure is less than the setting value, the frequency converter will automatically stop and the 220V model machine will display Er.012 and the 380V model machine Er.014.

Pr148

Pipe-burst pressure alarm is delayed.

d0000 —d0600 s

d0060

Note: if the frequency converter detects that the water pressure is lower than the pipe-burst pressure over the setting time, it will report fault and shutdown.

Pr149

Energy saving coefficient (decrease increment)

d0000-

d0100

d0004

Note:

Pr150

Standby (open the flow switch)

d0000-

d0001

d0000

Note: 0: the manual and automatic switch shall be determined by X4 terminal signal.

1: Panel manual/automatic keys can also be switched.

Pr151

Flow threshold (flow frequency HZ)

d0000-

d2000

d0040

When the flowmeter is enabled, if the detected actual flow is less than the setting value, the frequency converter will stop automatically;

Pr155

Timer 1 (No.1 pump running time) minutes

d0000-

d9999

d0030

Pr156

Timer 2 (No.2 pump running time) minutes

d0000-

d9999

d0030

Pr157-

Pr164

Standby

d0000-

d9999

d0000

Pr165

Dual pumps alternation function can be used with Timer 1 and Timer 2.

d0000-

d0001

d0000

Pr166

Standby

d0000-

d0001

d0000