Fuji Electric FRENIC-AQUA series, User Manual

Page: 513 / 751

6-232
„ End of curve protection (Detection current) (J183)
Set a detection current value at the time of drought, as a detection condition.
(Because large-water-volume operation is being performed, current according to the
maximum load flows.)
- Data setting range: 1% to 150% of the inverter rated current (allowable continuous
current), OFF
„ End of curve protection (Deviation) (J184)
Set deviation as a detection condition.
(During large-water-volume operation, the feedback value decreases because request of
water supply is beyond assumption.)
Data setting range: 0.01 to 9990.00, OFF
(The setting range is limited by the maximum scale and minimum scale.)
„ End of curve protection (Flow sensor) (J185)
Set presence/absence of a flow sensor as a detection condition.
(When in large-water-volume status, the flow sensor is turned ON.)
- Data setting range: 0 (Disable); 1 (Enable)
Even if the flow sensor (J185) is selected, it is disabled if function code J163: 0
(analog input selection), E01 to E07: 131 (flow switch) is not set.
Also, even if function code J163: 0 (analog input selection) is set, it is disabled if the
ON/OFF level of J164, J165 is OFF.
„ End of curve protection (Detection timer) (J186)
Set detection timer as a detection condition.
- Data setting range: 0 to 600 (s)
J188
J189
J190
J191
J192
J193
J194
J195
Filter Clogging Prevention/Anti Jam Function
(Input selection)
Filter Clogging Prevention Function
(Reverse operation cycle time)
Filter Clogging Prevention Function
(Load resistance current)
Filter Clogging Prevention Function
(Load resistance PV signal)
Filter Clogging Prevention Function
(Load resistance detection timer)
Filter Clogging Prevention/ Anti Jam Function
(Reverse rotation running frequency)
Filter Clogging Prevention/ Anti Jam Function
(Reverse rotation running time)
Filter Clogging Prevention/ Anti Jam Function
(Number of allowable reverse runs)
< Anti jam function >
When organic substance such as sand jams in the impeller of a submersible pump, the anti
jam function expels it through reverse rotation operation and then starts normal water supply
through normal rotation operation.
< Filter clogging prevention function >
When a fan's filter is clogged with coarse-grained dust, the filter clogging prevention function
expels the dust through reverse rotation operation, break it up, and then starts air blow
through normal rotation operation.
Only PID control 1 is valid for the filter clogging prevention function. When switch
from PID control 1 to PID control 2 is made, count values for the number of times
and time length for the filter clogging prevention function are cleared.