YASKAWA iQpump Series Programming Manual page 144

Figure 1.109
Max-Multi Level
P3-02
STOP, 0Hz
System
Set-Point
Start Level
P1-04
0%
Auto Mode Run
OFF Mode
Multi-function
Output #40
Multi-function
Output #41
Wait for Start
Start System
Auxiliary Pump De-Staging (OFF)
The de-staging of the auxiliary pumps 2 and 3 will occur in the reverse order of the staging process described previously.
The de-staging of auxiliary pump 3 occurs when the output frequency falls below the Pump 3 Frequency Shutdown Level (P3-10) for the
time programmed in the Shutdown Pump Delay Time (P3-06).
The de-staging of pump 2 occurs when the auxiliary pump 3 is de-staged and the output frequency falls below the Pump 2 Frequency
Shutdown Level (P3-09) for the time programmed in the Shutdown Pump Delay Time (P3-06). Refer to
the auxiliary pumps 2 and 3 using the "output frequency" control method.
144
Add Pump Delay Time
P3-04
Output Frequency
Start Level Delay
P1-05
AUTO MODE RUN: PUMP 1
START DELAY
Multiplex Stabilize Time Multiplex Stabilize Time
P3-11
Add Pump Delay Time
P3-04
ADD PUMP 2
Start System, Incoming Run Command
TIME
Figure 114
P3-11
Feedback
ADD PUMP 3
Figure 115 for the de-staging of
YASKAWA TM.iQp.02 iQpump Drive Programming Manual