No. Name Description
P3-08
Shutdown Pump Delta
Level
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.
P3-09
Shutdown Pump Delay
Time
Sets the delay time before one of the
additional line pumps is shut down.
P3-10
Setpoint Boost
Maximum at De-Stage
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.
P3-11
Setpoint Boost after
De-Stage Time
Sets the amount of time that the setpoint will
remain boosted after lag pump is de-staged.
P3-12
Multi Pump Setpoint
Increase during
Transition
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
P3-13
Multi Pump Setpoint
Decrease during
Transition
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
P3-14
Multiplex Stabilization
Time
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.
P3-15
High Feedback Quick
De-stage
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.
P3-16
Low Feedback Quick
De-stage
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.
P3-30 Stage Selection Mode
Sets the method of staging for the pumps.
0: Sequential
1: Stop history
P3-31
De-Stage Selection
Mode
Sets the method for removing contactor
pumps.
0: Last in, first out (LIFO)
1: First in, first out (FIFO)
No. Name Description
P3-40
Pre-Charge Lag Pump
Select
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)
P3-41
Pre-Charge Lag Pump
Run Time
Sets the length of time that the lag pump
specified in P3-40 is energized.
P3-42
Post-Pre-Charge Lag
Pump Operation
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
P3-43
Pre-Charge Lag Pump
Delay Time
Sets the length of time that the drive is in
the pre-charge mode before the lag pump
set in P3-40 is energized.
P3-50,
P3-60,
P3-70,
P3-80,
P3-90
Pumps 2 to 6
Frequency Shutdown
Level
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.
P4-01 Pre-Charge Level Runs the drive at the frequency set in P4-02.
P4-02 Pre-Charge Frequency
Sets the frequency reference used when the
Pre-Charge function is active.
P4-03 Pre-Charge Time
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.
P4-04
Pre-Charge Message
Style
Selects how the “Pre-charge Active”
message is displayed on the operator.
0: Full Screen Message
1: Home Monitor Text
P4-05
Pre-Charge Loss of
Prime Level
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.
P4-06
Pre-Charge Frequency
2
Sets the frequency reference used when the
Pre-Charge function 2 is active.
Setting this parameter to 0.0 disables the
function.
P4-07 Pre-Charge Time 2
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.
i.8 Parameter Table
94
YASKAWA TOEP YAIP1W 02E YASKAWA AC Drive - iQpump1000 Installation & Start-up Guide
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