Yaskawa iQpump Controller Programming Manual - Manual (Page 173)

YASKAWA TM.iQp.07 iQpump Controller Programming Manual 173
Figure 1.125
Figure 129.
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
Figure 130. for the de-staging of
the auxiliary pumps 2 and 3 using the “output frequency” control method.
TIME
Output Frequency
Add Pump Delay Time
P3-04
Feedback
Auto Mode Run
Multi-function
Output #40
Wait for Start
Max-Multi Level
P3-02
STOP, 0Hz
0%
OFF Mode
Start Level
P1-04
ADD PUMP 2
AUTO MODE RUN:
Start System, Incoming Run Command
Start System
Start Level Delay
P1-05
START DELAY
System
Set-Point
Add Pump Delay Time
P3-04
Multi-function
Output #41
ADD PUMP 3
PUMP 1
Multiplex Stabilize Time
P3-11
Multiplex Stabilize Time
P3-11