0–10000s
Time setting of full water delay (This function code is still valid when the
digital indicates the full-water signal.)
Wake-up delay
in full water
state
0–10000s
Time setting of wake-up delay in full-water state (This function code is still
valid when the digital indicates the full-water signal.)
0–10000s
Time setting of empty-water delay (This function code is still valid when the
digital indicates the empty-water signal.)
Wake-up delay in
empty-water
state
0–10000s
Time setting of wake-up delay in empty-water state (This function code is still
valid when the digital indicates the empty-water signal.)
0.0–100.0%
0.0%: Invalid. If it is not 0.0%, when the signal is longer than P15.18, it will
report tSF fault directly and stop.
Operation time
of water pump
underload
0.0–1000.0s
This parameter is used to set the operation time of water pump underload.
Under the continuous underload operation, underload pre alarm (A-LL) will be
reported if the operation time is reached.
Current
detection value
of underload
operation
0.0%: Automatic underload detection
0.1–100.0%
If it is 0.0%, it is determined by the underload detection of the water pump
controller . If it is not 0.0%, it is determined by P15.20. 100.0% corresponds to
the rated current of the motor.
If the target frequency and the absolute value of the ramp frequency is less
than or equal to P15.22, and the current is less than P15.20, after the time set by
P15.19, underload fault is reported. Otherwise, it will be operated normally. If
the state is not continuous, the delay counting will be cleared automatically.
0.0–1000.0s
This parameter is used to set the underload reset delay.
The operation time and reset time are counted at the same time during
underload, and it is generally bigger than P15.19 so as to ensure underload
prealarm is reported after underload delay operation time is reached. After the
time set by P15.21-P15.19, it is reset. If the value is the same as P15.19, it is
automatically reset when underload Prealarm is reported.
0.00–200.00Hz
P15.22 is the lag frequency threshold for the analysis of underload operation. If
the target frequency and the absolute value of the ramp frequency is less
than or equal to P15.22, the current will be compared.
0.0–3600.0s
Delay time of weak light
If the output frequency is less than or equal to the lower limit of PI output
frequency and the state lasts for the set value, it will report A-LS and sleep. If
the state is not continuous, the delay counting will be cleared automatically.
Note: If the bus voltage is lower than the undervoltage point or the PV voltage is
lower than 70V, it will report the weak light alarm without any delay time.
If P15.32=0, the system will switch to the power frequency input when the light is
weak.
Delay time of
wake-up at weak
light
0.0–3600.0s
Delay time of wake-up at weak light
During the weak light warning, if the PV voltage is higher than the starting
voltage, after the delay time, the warning will be cleared and it will run again.
When P15.32=0, if the PV voltage is higher than P15.34. After the delay time, it
will switch to solar input mode.
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