Yaskawa iQpump Controller User Manual - Manual (Page 83)

4.2 iQpump Drive Quick Start-Up Procedures
YASKAWA TM.iQp.06 iQpump Controller User Manual 83
Figure 4.8
b5-14 2.0 s
PI Feedback Loss
Detection Time
Delay time before iQpump shows alarm or fault when feedback device
has failed or is disconnected. Example: 2.0 s, iQpump displays alarm or
fault 2 s after the device has failed or is disconnected.
C1-01 20.0 s Acceleration Time 1
Time it takes to accelerate the pump motor from zero to maximum
speed.
Adjusted depending on system
performance.
C1-02 10.0 s Deceleration Time 1
Time it takes to decelerate the plump motor from maximum speed to
zero.
L5-01 5
Number of Restart
Attempts
Determines the number of times iQpump will perform an automatic
restart on the faults listed in the comments column.
iQpump System Protection Faults that can be setup to restart are Low
Level Feedback, High Level Feedback, transducer Loss, Not
Maintaining Setpoint, Loss of Prime, PUmp Over Cycle. Refer to
parameters P4-07 and P4-08. The number of restart attempts is set by
L5-01.
Overcurrent
Ground Fault
Output Phase Loss
Input Phase Loss
iQpump Overload
L5-03 20 s
Maximum Restart Time
After Fault
If the restart fails (or is not attempted due to a continuing fault
condition), iQpump waits the Maximum Restart Time After Fault before
attempting another restart.
Motor Overload
Overtorque
DC Bus Fuse Blown
DC Bus Undervoltage
DC Bus Overvoltage
Overheat
P1-06 40.0 Hz
Minimum Pump
Frequency
Minimum speed (Hz) the pump has to operate at.
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 should be set to the level where
the pump can produce the minimum
pressure even at zero flow.
P2-03 5 s Sleep Delay Time
Time it takes before the pump system goes to sleep when the selected
signal level (P2-01) falls below the specified sleep level (P2-02 Adjust according to system
requirements.
P4-05 30.0 Hz Thrust Bearing Frequency
Sets the frequency reference used when the thrust bearing function is
active. A value of 0 disables this function.
Primarily used for submersible
pumps. Program P4-05 = 0.0 Hz to
disable function when iQpump is used
with a centrifugal pump.
(See
Figure 4.11 )
P4-11 0.2 min Utility Start Delay
When utility power is restored and P4-10 is enabled (1), iQpump waits
the time specified in P4-11 before auto operation becomes active.
Note: Only active when P4-10 is
enabled (1) and operation (start / stop)
is from the digital operator.
Parameter Value Description Reference Comments
Examples:
0 – 1000 , no decimals, P1-03 = 1000
0 – 300.0, one decimal, P1-03 = 10300
0 – 50.00, two decimals , P1-03 = 25000
P1-03 = 0 0 0 0 0 Feedback Scaling
Feedback
Maximum
Decimal Point
Position
TRANSDUCER / FEEDBACK DEVICE SCALING 1