Yaskawa iQpump Controller User Manual - Manual (Page 260)

260 YASKAWA TM.iQp.06 iQpump Controller User Manual
G.9 iQpump Software Multiplexing Set-up
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Duplex System with Jockey Pump
A customer requires a pump system with the following requirements:
• One small pump (the Jockey pump) would run the system during off-peak times.
• Two larger pumps would run the system when the demand is higher.
• The Jockey pump should not run when the two larger pumps are running.
• Pu
mp 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.
Figure G.14
Figure G.16 With Jockey Pump Wiring Diagram
Related Parameters for Duplex System with Jockey Pump Example
Description Jockey Pump Drive C Drive D
Node Address H5-01 = 1 H5-01 = 2 H5-01 = 3
Highest Node Address P9-25 = 3 P9-25 = 3 P9-25 = 3
Pump Mode: 3 = Network P1-01 = 3 P1-01 = 3 P1-01 = 3
Feedback Source: 0 = Analog, 3 = Network P9-02 = 0 P9-02 = 3 P9-02 = 3
Lag Drive Speed: 0 = Always, 2 = Turn Off P9-05 = 2 P9-05 = 0 P9-05 = 0
Allow Net Run: 0 = Always, 2 = First Only P9-20 = 2 P9-20 = 0 P9-20 = 0
Run Priority P9-21 = 7 P9-21 = 8 P9-21 = 8
Lead Swap @ Sleep P9-24 = 0 P9-24 = 1200 s P9-24 = 1200 s
Setpoint U1-01 = 100 psi U1-01 = 100 psi U1-01 = 100 psi
Start Level P1-04 = 80 psi P1-04 = 80 psi P1-04 = 80 psi
* All other multiplexing and alternation parameters are at default settings.
(Jockey Pump)
CIMR-P7U47P51-107
R+ S+ S- R-
A2
AC
+V
A1
SN
S1
Drive B
CIMR-P7U40111-107
R+ S+ S- R-
A2
AC
+V
A1
SN
S1
SYSTEM PRESSURE
FEEDBACK
Drive C
CIMR-P7U40111-107
R+ S+ S- R-
A2
AC
+V
A1
SN
S1