Chapter V Basic Operation Instructions
136
Parameter
Code
Parameter
name
Parameter detailed description
Minimum
Unit
Factory
value Change
F8.27
Water
supply
wake
pressure
tolerance
F8.27 set range: 0.0
～
100.0% (100.0% is
the set pressure value)
F8.28 set range: 0.0
～
3600.0s
0.1%
10.0%
○
F8.28
Water
supply
wake
detection
time
0.1s
2.0s
○
F8.29
Water
pressure
overpressur
e alarm
detection
value
Set range: 0.0
～
100.0% (Do not test when
set to 0, 100.0% is the maximum range of
pressure sensor)
0.1%
90.0%
○
F8.30
Water
pressure
undervoltag
e alarm
detection
value
Set range: 0.0
～
100.0% (Do not test when
set to 0, 100.0% is the maximum range of
pressure sensor)
0.1%
0.0%
○
F8.31
Water
pressure
abnormal
alarm
detection
time
Set range: 0.0
～
3600.0s
0.1s
50.0s
○
F8.32
Water
shortage
alarm set
value
F8.32 set range: 0.0
～
100.0% (100.0% is
the set pressure value)
F8.33 set range: 0.0
～
3600.0s
F8.34 set range: 0
～
10000min (0min
indicate there’s no water shortage restart
function)
0.1%
0.0%
○
F8.33
Water
shortage
alarm
detection
time
0.1s
20.0s
○
F8.34
Water
shortage
restart wait
time
1min
0min
○
F8.35
Water
supply
absolute
sleep
detection
time
Setting range: 0~3600.0s
When the drive sleeps and decelerates to the
lower limit frequency, it will run at the
lower limit frequency for the time defined
by F8.35 and then go to zero frequency
operation.
0.1s
10.0s
○
5.11 Multi-pump control
Multi-pump control function can control the automatic switch of multiple pumps through