Chapter IV Function Parameter Table
76
Parameter
Code
Parameter
name
Parameter detailed description
Minimum
Unit
Factory
value
Change
closed-loop input value.
F8.24
Water
supply
sleep
selection
0: Automatic sleep
1: Run at lower limit frequency
1
0
○
F8.25
Water
supply
sleep
detection
time
F8.25 set range: 0.0
～
3600.0s
F8.26 set range: 0.01
～
600.00s
Sleep detection pressure =
(100.0%-F8.15) * set pressure value.
When the drive is running, it will detect
whether the feedback pressure is higher
than the sleep detection pressure. If the
feedback pressure is higher than the sleep
detection pressure, the drive starts the
sleep detection. After the water supply
sleep detection delay time set by F8.25, if
the feedback pressure is still greater than
the sleep detection pressure, it enters the
sleep status, and the drive gradually
reduces the output frequency according to
the water supply sleep deceleration time
defined by F8.26. If the feedback pressure
becomes lower than the sleep detection
pressure in the above process, the drive
determines that the sleep detection has
failed, and the drive returns to the PID
adjustment status.
0.1s
2.0s
○
F8.26
Water
supply
sleep
deceleratio
n time
0.01s
30.00s
○
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
1. Water supply wake-up pressure =
(100.0%-F8.27) * set pressure value.
2. When the drive enters the sleep status,
if the feedback pressure is lower than the
water supply wake-up pressure, the drive
starts wake-up detection. After the water
supply wake-up detection time set by
F8.28, if the feedback pressure is still
lower than the wake-up pressure, the
wake-up is successful and the drive
returns to the PID adjustment status,
otherwise the wake-up fails. Setting the
wake-up pressure too high may cause the
drive to start and stop frequently. Setting
it too low may cause insufficient water
0.1%
10.0%
○
F8.28
Water
supply
wake
detection
time
0.1s
2.0s
○