YASKAWA TOEPYAIUPW02A U1000 iQpump Drive Quick Start Procedure
U1000 iQpump Drive
Quick Start Procedure
Page 22
of 25
Programming Advanced Parameters (continued)
12
STEP
Task
Parameter
Name
Description/Menu Access
Default Value
12.6
P1-06 should be set to
the level at which the pump
produces minimum pressure
even at zero flow. Example:
Base pump motor speed is
3600 RPM, minimum speed is
2400 RPM. Set minimum pump
frequency to 40.0 Hz. (2400 ÷
3600 x 60 Hz=40 Hz)
P1-06
Minimum Pump
Speed
Minimum frequency at which the drive
will run. Applies to both HAND and AUTO
modes.
NOTE: For minimum pump frequency, the
drive will use the highest setting from among
P1-06, P4-12 (Thrust Bearing Frequency), or
d2-02 (Reference Lower Limit).
40.0 Hz
12.7
Adjust this parameter
according to system
requirements.
P2-03
Sleep Delay Time
Sets the delay time before the drive enters
Sleep Mode when the selected signal level
(P2-01) falls below the specified sleep level
(P2-02).
5 seconds
12.8
Primarily used for
submersible pumps. Program
P4-12 = 0.0 Hz to disable
function when the drive is used
with a centrifugal pump.
P4-12
Thrust Bearing
Frequency
Sets the frequency reference used when the
thrust bearing function is active.
The drive will accelerate to this frequency
in the time set to P4-11. The drive will
decelerate from the frequency in the time set
to P4-13.
Programming
30.0 Hz
12.9
Set the amount of time
for the drive to delay starting if
a Run command is present at
power-up.
Note:
Utility Start Delay is
active when P4-10 is enabled
and operation (start/stop) is
from the HOA keypad.
P4-17
Utility Start Delay
Sets the amount of time that the drive will
delay starting if a Run command is present
at power-up.
The drive waits the time specified in P4-11
before auto operation becomes active when
utility power is restored and
P4-10 is enabled.
Programming
0.2 minutes
Setting this
parameter to
0.0 disables the
function.
Programming
