YASKAWA iQpump1000 Installation & Start?Up Manual page 94

i.8 Parameter Table
No. Name
Shutdown Pump Delta
P3-08
Level
Shutdown Pump Delay
P3-09
Time
Setpoint Boost
P3-10
Maximum at De-Stage
Setpoint Boost after
P3-11
De-Stage Time
Multi Pump Setpoint
P3-12 Increase during
Transition
Multi Pump Setpoint
P3-13 Decrease during
Transition
Multiplex Stabilization
P3-14
Time
High Feedback Quick
P3-15
De-stage
Low Feedback Quick
P3-16
De-stage
P3-30 Stage Selection Mode
De-Stage Selection
P3-31
Mode
94
Description
Sets the level used for the multiplex
pumping operation.
Parameter is active only when P3-02 is set
to 1 or 2.
When P3-02 is set to 1, the last pump that
was brought online will be shut down by
opening the dedicated mult-function
discrete output (H2-0o = 80 to 84) when
the delta feedback (feedback minus
setpoint) has exceeded the level
programmed in this parameter for the time
set in P3-09.
When the P3-02 is set to 2, the last pump
that was brought online will be shut down
by opening the dedicated multi-function
discrete output (H2-0o = 80 to 84) when
the output frequency drops below the level
programmed in P3-50, P3-60, P3-70,
P3-80, or P3-90 and the delta feedback
(feedback minus setpoint) has exceeded the
level set in this parameter for the time set in
P3-09.
Note: Programming this
parameter too close to the
system setpoint may cause
the pump system to cycle
excessively.
Sets the delay time before one of the
additional line pumps is shut down.
Sets the maximum amount of boost that can
be added to the setpoint after a de-stage
occurs.
Setting this parameter to 0.0 disables the
function.
Sets the amount of time that the setpoint will
remain boosted after lag pump is de-staged.
Sets the system setpoint increase each time
a new pump is brought online.
Pump 1: Setpoint
Pump 1 + 2: Setpoint + P3-12
Pump 1 + 2 + 3: Setpoint + 2 x P3-12
Sets the system setpoint decrease each time
a new pump is brought online.
Pump 1: Setpoint
Pump 1 + 2: Setpoint - P3-13
Pump 1 + 2 + 3: Setpoint - 2 x P3-13
Sets the time used to stabilize the system
when a pump is added or shut down 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.
Function is active in contactor multiplex
mode (P1-01 = 1). Time pump protection
and lead/lag control is suspended during
stabilization time.
Sets the High Feedback level that will
trigger a quick de-stage. The quick de-stage
uses an internal 2 sec delay.
A setting of 0 disables this feature.
Sets the Low Feedback level that will
trigger a quick de-stage. The quick de-stage
uses an internal 2 sec delay.
A setting of 0 disables this feature.
Sets the method of staging for the pumps.
0: Sequential
1: Stop history
Sets the method for removing contactor
pumps.
0: Last in, first out (LIFO)
1: First in, first out (FIFO)
YASKAWA TOEP YAIP1W 02E YASKAWA AC Drive - iQpump1000 Installation & Start-up Guide
No. Name
Pre-Charge Lag Pump
P3-40
Select
Pre-Charge Lag Pump
P3-41
Run Time
Post-Pre-Charge Lag
P3-42
Pump Operation
Pre-Charge Lag Pump
P3-43
Delay Time
P3-50,
P3-60, Pumps 2 to 6
P3-70, Frequency Shutdown
P3-80, Level
P3-90
P4-01 Pre-Charge Level
P4-02 Pre-Charge Frequency
P4-03 Pre-Charge Time
Pre-Charge Message
P4-04
Style
Pre-Charge Loss of
P4-05
Prime Level
Pre-Charge Frequency
P4-06
2
P4-07 Pre-Charge Time 2
Description
Selects which of the lag pumps can come on
during a pre-charge.
0: Disabled
2: Pump 2 (H2-0o = 80)
3: Pump 3 (H2-0o = 81)
4: Pump 4 (H2-0o = 82)
5: Pump 5 (H2-0o = 83)
6: Pump 6 (H2-0o = 84)
Sets the length of time that the lag pump
specified in P3-40 is energized.
Determines whether the lag pump set in pre-
charge (P3-40) turns off or maintains its
state when pre-charge is completed.
0: Turn off
1: Continue
Sets the length of time that the drive is in
the pre-charge mode before the lag pump
set in P3-40 is energized.
Sets the level used for the multiplex
pumping operation.
Parameter is active only when P3-02 is set
to 0 or 2.
When P3-02 is set to 0 and a total of two
pumps are running, the last pump (Pump 2)
that was brought online will be shut down
by opening the dedicated mult-function
discrete output (H2-0o = 80 to 84) when
the output frequency falls below the level
set in this parameter for the time set in
P3-09.
When P3-02 is set to 2 and a total of two
pumps are running, the last pump (Pump 2)
that was brought online will be shut down
by opening the dedicated mult-function
discrete output (H2-0o = 80 to 84) when
the delta feedback (setpoint minus
feedback) has exceeded the level
programmed in this parameter for the time
set in P3-09.
Runs the drive at the frequency set in P4-02.
Sets the frequency reference used when the
Pre-Charge function is active.
Sets the maximum allowed Pre-Charge
time.
When P1-01 is set to 3 (MEMOBUS
network), the function is active only on the
first drive to run in the network.
Setting this parameter to 0.0 disables the
function.
Selects how the "Pre-charge Active"
message is displayed on the operator.
0: Full Screen Message
1: Home Monitor Text
Detects loss of prime in the pump.
When the measured quantity determined by
P1-18 drops below this level for the time set
in P1-20 and the output frequency is at the
level set in P4-02, a "Loss of Prime"
condition occurs.
The drive responds to the "Loss of Prime"
condition depending on the setting of
P1-22, Loss of Prime Selection.
Sets the frequency reference used when the
Pre-Charge function 2 is active.
Setting this parameter to 0.0 disables the
function.
Sets the time at which the drive will spend
at the Pre-Charge frequency 2 speed during
pre-charge.
Setting this parameter to 0.0 disables the
function.