TECO F510 series - Page 365

4-276
23-25 = 0.0 (sec) means to disable the function of water pressure detection.
When function of water pressure detection is enabled, it can shorten the time of jumping into sleep without
water consumption or with mild water consumption.
If water consumption frequenctly continues, it is recommended to extend the cycle of water pressure
detection (23-25) so as the detection times can be reduced and the occurance of fluttering or instability
during water pressure detection in constant pressure can be avoided.
When upward detection of water pressure starts, water pressure will slightly increase. At this time, it may
cause shortly pressure fluttering or instability if water consumption continues. It is recommended to reduce
the range of water pressure detection (23-24) but it will extend the time of inverter jumping into sleep
without water consumption or with mild water consumption.
Bar
Hz
time
Water
Consumption
Continues
Water
Consumption
Stops
23-11
Sleep Time of
Constant Pressure
23-10
Sleep Frequency
23-24
Range of Water Pressure Detection
time
23-02
Target Pr essure
Value
23-27
Decel. Time of Water
Pressure Detection
Output
Frequency
23-23 = 1
Downward Detection of Water Pressure
Pressure
Feedback Value
23-25
Period of Water
Pressur e Detection
Figure 4.4.110 Diagram for downward detection of water pressure
23-25 = 0.0 (sec) means to disable the function of water pressure detection.
When function of water pressure detection is enabled, it can shorten the time of inverter jumping into sleep
without water consumption or with mild water consumption.
If water consumption frequenctly continues, it is recommended to extend the cycle of water pressure
detection (23-25) so as the detection times can be reduced and the occurance of fluttering or instability
during water pressure detection in constant pressure can be avoided.
When downward detection of water pressure starts, the output frequency will decelerate with the
deceleration time of water pressure detection (23-27). Water pressure reduces with the deceleration when
water consumption continues and pressure feedback value rises if the value is lower than that of target
pressure value (23-02) - range of water pressure detection (23-24).