Yaskawa iQpump Manual Supplement - Manual (Page 76)

76 YASKAWA TM.iQp.10 Technical Manual Supplement
P3-09

061C
Pump 2 Frequency
Shutdown Level
P2 Freq Shd Lvl
Sets the level used for multiplex pumping operation. Parameter is active
when P3-01 = 0 or P3-01 = 2 is selected.
P3-0 1= 0: When the output frequency falls below the level programmed in
P3-09 for a time specified in P3-06 and a total of 2 pumps are running, the
last pump (Pump 2) that was brought online will be shutdown by means of
a multi-function digital output opening (H2-†† = 40, 41).
P3-01 = 1: Not Used
P3-01 = 2: When the output frequency falls below the level programmed in
P3-09 and a total of 2 pumps are running and the delta feedback (feedback
minus setpoint) has exceeded the level programmed in P3-05 for a time
specified in P3-06, the last pump (Pump 2) that was brought online will be
shutdown by means of a multi-function digital output opening (H2-†† =
40, 41).
0.0 ~
120.0 Hz
40.0 Hz Programming
P3-10

061D
Pump 3 Frequency
Shutdown Level
P3 Freq Shd Lvl
Sets the level used for multiplex pumping operation. Parameter is active
when P3-01 = 0 or P3-01 = 2 is selected.
P3-01 = 0: When the output frequency falls below the level programmed in
P3-10 for a time specified in P3-06 and a total of 3 pumps are running, the
last pump (Pump 3) that was brought online will be shutdown by means of
a multi-function digital output opening (H2-†† = 40, 41).
P3-01 = 1: Not Used
P3-01 = 2: When the output frequency falls below the level programmed in
P3-10 and a total of 3pumps are running and the delta feedback (feedback
minus setpoint) has exceeded the level programmed in P3-05 for a time
specified in P3-06, the last pump (Pump 3) that was brought online will be
shutdown by means of a multi-function digital output opening (H2-†† =
40, 41).
0.0 ~
120.0 Hz
40.0 Hz Programming
P3-11

0110
Multiplex Stabilization
Time
M-Stabilize Time
Sets the time used to stabilize system when a pump is added (brought
online) or shutdown during multiplex operation. When a pump is added,
the stabilize timer temporarily disables the lead/lag functionality for the
programmed time to prevent pump cycling.
Note: This function only active in the multiplex mode when P1-01 is
greater than 0.
During the stabilization time, the pump protection and lead-lag control is
suspended.
0 ~ 3600
sec
2 sec Programming
P3-12

0111
Delta Set-point Feedback
Acc/Dec Changeover
SP ACC/DEC Hyst.
Sets the level when the acceleration and deceleration times change over to
the values programmed in C1-05 and C1-06 respectively. This function
will activate when the difference between the delta setpoint and feedback
are within the level programmed in P3-12. This function is used to improve
the pump regulation.A value of 0 disables this function. 0.0 ~
6000.0
(system
units
P1-02)
0.0 (system
units
P1-02)
Programming
P3-13

0112
Friction Compensation
start Frequency
Fric. Comp Lvl
Sets the level when the setpoint will be adjusted to compensate for the
friction losses. This function will activate when the output frequency rises
above the level programmed in P3-13. The maximum compensation at
maximum output frequency (E1-04) is specified by maximum setpoint
frequency (P2-10).
Note: This function is only active in simplex mode when P1-01 = 0.
0.0 ~
120.0 Hz
0.0 Hz Programming
P3-14

0113
Maximum Friction
Increase at Maximum
Frequency
Friction Inc
Sets the maximum setpoint friction compensation at maximum output
frequency (E1-04). This function is a linear calculation with P3-13 as its
starting frequency.
Example: P3-13 = 30.0 Hz, P3-14 = 10.0 psi, output frequency = 45.0 Hz
and maximum frequency = 60.0 Hz
Set-point Increase = (45-30 Hz) x 10 psi/(60 Hz – 30 Hz)
≥ 5.0 psi
Note: This function is only active in simplex mode when P1-01 = 0.
0.0 ~
6000.0
(system
units
P1-02)
0.0 (system
units
P1-02)
Programming
 Denotes that parameter can be changed when the drive is running.
Parameter
No.
Addr.
Hex
Parameter Name
Digital Operator
Display
Description
Setting
Range
Factory
Setting
Menu
Location