YASKAWA iQpump Manual Supplement page 76

Parameter Name
Parameter Addr.
Digital Operator
No. Hex
Pump 2 Frequency
P3-09
061C Shutdown Level
P2 Freq Shd Lvl
Pump 3 Frequency
P3-10
061D Shutdown Level
P3 Freq Shd Lvl
Multiplex Stabilization
P3-11
0110 Time
M-Stabilize Time
Delta Set-point Feedback
P3-12
0111 Acc/Dec Changeover
SP ACC/DEC Hyst.
Friction Compensation
P3-13
0112 start Frequency
Fric. Comp Lvl
Maximum Friction
P3-14 Increase at Maximum
0113
Frequency
Friction Inc
Denotes that parameter can be changed when the drive is running.
76
Display
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-
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).
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-
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).
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.
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.
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.
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.
Description
= 40, 41).
= 40, 41).
YASKAWA TM.iQp.10 Technical Manual Supplement
Setting Factory Menu
Range Setting Location
0.0 ~
40.0 Hz Programming
120.0 Hz
=
0.0 ~
40.0 Hz Programming
120.0 Hz
=
0 ~ 3600
2 sec Programming
sec
0.0 ~
6000.0 0.0 (system
(system units Programming
units P1-02)
P1-02)
0.0 ~
0.0 Hz Programming
120.0 Hz
0.0 ~
6000.0 0.0 (system
(system units Programming
units P1-02)
P1-02)