TECO L510S Series - Page 139

4-94
Diagram for download detection of water pressure
 When 14-25=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 frequently continues, it is recommended to extend the cycle of water pressure
detection (14-25) so as the detection times can be reduced and the occurrence 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 (14-24) but it will extend the time of
inverter jumping into sleep without water consumption or with mild water consumption.
Pros Cons
Upward
detection
of water
pressure
 Keep the pressure above the target pressure during
this process.
 For strict and precise applications
 If “Pump lift” is too high, operation frequency is
higher without water consumption or with mild
water consumption. So this detection effect is too
restricted to jump into sleep.
 Energy-saving of water flow is not obvious and
Slave is not easy to sleep under the multiple pumps
in parallel.
Downward
detection
of water
pressure
 Jump into sleep status without water consumption or
with mild water consumption.
 For energy-saving purpose, under the multiple pumps
in parallel regulate the pumps to the optimum operation
state during this process.
 Startup sequency is by Master, Slave 1, Slave 2, and
Slave 3. Sleep sequency is by Slave 1, Slave 2, and
Slave 3 and Master. After the switching time is
allowable, alternate Master and Slave reach the
average of life expectancy.
 Pressure fluctuations may occur during this process
if user inappropriately regulates the range of water
pressure detection (23-24) and the deceleration time
of water pressure detection (23-27).
Guide for comparison of water pressure detection direction