YASKAWA iQpump1000 User Manual page 186

4.6 iQpump Presets and Functions
Description
Lag Drive Speed: 0 (Always),
2 (Turn Off)
Allow Net Run: 0 (Always),
2 (First Only)
Run Priority
Lead Swap @ Sleep
Setpoint
Start Level
<1> All other multiplexing and alternation parameters are set to default settings.
n Triplex System Example
A customer who currently runs a duplex system would like to retrofit an existing triplex system with the following requirements:
• Three similarly sized pumps would run the system.
• A maximum of two drives should be running at any point; the third drive is a backup.
• Alternation should only happen when pumps are not running (sleeping).
• If one of the analog pressure feedback transducers should fail, read from a working one and notify the customer of the failure
by the alarm display.
• Setpoint is 90 PSI, feedback scale is 145 PSI, start level is 75 PSI.
S1
SN
+V
A1
A2
AC
Description
Node Address
Highest Node Address
Pump Mode: 3 (Network)
Feedback Source:
2 (Analog ->Net, with Alarm)
Alternation Mode: 3 (FIFO @ Sleep)
Maximum Running Pumps
Setpoint
Start Level
<1> All other multiplexing and alternation parameters are set to default settings.
186
<1>
Jockey Pump
P9-05 = 2
P9-20 = 2
P9-21 = 7
P9-24 = 0
U5-99 = 100 PSI
P1-04 = 80 PSI
Drive A
25 HP
R+ R- S+ S-
Figure 4.22 Simplified Wiring Diagram
Table 4.13 Related Parameters for Triplex System Example
<1>
Drive A
H5-01 = 1
P9-25 = 3
P1-01 = 3
P9-02 = 2
P9-04 = 3
P9-23 = 2
U5-99 = 90 PSI
P1-04 = 75 PSI
<1>
Drive B
P9-05 = 0
P9-20 = 0
P9-21 = 8
P9-24 = 1200 s
U5-99 = 100 PSI
P1-04 = 80 PSI
S1
SN
Drive B
25 HP
+V
A1
A2
AC
R+ R- S+ S-
<1>
Drive B
H5-01 = 2
P9-25 = 3
P1-01 = 3
P9-02 = 2
P9-04 = 3
P9-23 = 2
U5-99 = 90 PSI
P1-04 = 75 PSI
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
<1>
Drive C
P9-05 = 0
P9-20 = 0
P9-21 = 8
P9-24 = 1200 s
U5-99 = 100 PSI
P1-04 = 80 PSI
S1
SN
Drive C
25 HP
+V
A1
A2
AC
R+ R- S+ S-
<1>
Drive C
H5-01 = 3
P9-25 = 3
P1-01 = 3
P9-02 = 2
P9-04 = 3
P9-23 = 2
U5-99 = 90 PSI
P1-04 = 75 PSI