YASKAWA iQpump1000 User Manual page 185

• Increase the de-staging delay time (P9-15)
• Increase the stabilization time (P9-16)
• Increase both the Add Freq Level and Add Dly Time
Table 4.11 Related Parameters for Duplex System with Fine Tuning Application Example
Description
Run Source: 1 (Terminals)
Node Address
Highest Node Address
Pump Mode: 3 (Network)
Feedback Source: 0 (Analog)
Lag Fixed Speed
Setpoint
Start Level
High Feedback Quick De-Stage
Setpoint Modifier
Add Drive Frequency Level
Add Drive Delay
<1> All other multiplexing and alternation parameters are set to default settings.
n Duplex System with Jockey Pump Example
A customer requires a pump system with the following requirements:
• One small pump (the Jockey pump) will run the system during off-peak times.
• Two larger pumps will run the system when the demand is higher.
• The Jockey pump should not run when the two larger pumps are running.
• Pump wear is still an issue, but it is expected that the small pump will run longer hours and will always run first after a loss
of power.
• The feedback scale is 145 PSI.
• There is only one feedback transducer in the system.
Table 4.12 Related Parameters for Duplex System with Jockey Pump Example
Description
Node Address
Highest Node Address
Pump Mode: 3 (Network)
Feedback Source: 0 (Analog),
3 (Network)
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
Drive A
P9-06 = 54.0 Hz
U5-99 = 100 PSI
P1-04 = 140 PSI
P9-18 = 89.3%
P9-17 = 5.0 PSI
P9-09 = 59.0 Hz
P9-11 = 12.0 s
S1 S1
SN SN
(Jockey Pump)
10 HP
+V +V
A1 A1
A2 A2
AC AC
R+ R- S+ S-
Figure 4.21 Simplified Wiring Diagram
<1>
Jockey Pump
H5-01 = 1
P9-25 = 3
P1-01 = 3
P9-02 = 0
4.6 iQpump Presets and Functions
<1>
b1-02 = 1
H5-01 = 1
P9-25 = 2
P1-01 = 3
P9-02 = 0
S1
SN
Drive B
15 HP
+V
A1
A2
AC
R+ R- S+ S-
<1>
Drive B
H5-01 = 2
P9-25 = 3
P1-01 = 3
P9-02 = 3
<1>
Drive B
b1-02 = 1
H5-01 = 2
P9-25 = 2
P1-01 = 3
P9-02 = 0
P9-06 = 54.0 Hz
U5-99 = 100 PSI
P1-04 = 140 PSI
P9-18 = 89.3%
P9-17 = 5.0 PSI
P9-09 = 59.0 Hz
P9-11 = 12.0 s
Drive C
15 HP
R+ R- S+ S-
Drive C
H5-01 = 3
P9-25 = 3
P1-01 = 3
P9-02 = 3
4
<1>
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