4-97
Diagram of sleep stop alternative selection action
A. Dual pumps are enabled during this time. Higher operation pressure occurs, Master keeps operation
and Slave output frequency decreases.
B. Master operation frequency maintains 60Hz. If water pressure doesn’t decrease to the target
constant pressure and Slave continuously decreases to the set trip frequency (14-22), Slave
detection time (14-30) starts and Slave decelerates to stop.
C. If milder water consumption and higher water pressure occur and Slave operation command is in
sleep status, Master output frequency decreases to let the water pressure be in constant status
when the detection time (14-30) is over.
D. When Master operation frequency decreases to the sleep frequency of constant pressure
(23-10), Master will decrease to stop, water consumption is continuously mild and water pressure
will reduce slowly.。
E. When water consumption stops, Master jumps into sleep and the pressure remains the same. and
Slave’s detection time (14-30) starts.
F. When the detection time (14-30) is over, shift operation stops and virtual Master starts to become
Slave. The inverter operates in constant pressure under the target pressure value.
14-34 Tolerance Range of Constant Pressure 2
Range
When 14-20=0, range is 0.00~650.00
When 14-20=1, range is 0~100
14-35 Selection of Multiple Pumps Shift Operation
Range
0: No Function
1: Timer Alternately Selection
2: Sleep Stop Alternately Selection
3: Timer and Sleep Stop Alternately Selection
4: Multiple Pumps Test Mode
14-35=1, if the operation time is over the switching time (14-29) or sleep to stop under the operation
of dual pumps, the dominance between Master and Slave will exchange to operate.
14-35=2, when the Master and Slave of multiple pumps in parallel are both in sleep mode,
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