Yaskawa iQpump Controller User Manual - Manual (Page 128)

5.2 Pump Basic
128 YASKAWA TM.iQp.06 iQpump Controller User Manual
5.2 Pump Basic
◆ Parameter Overview — P1 Group
Table 5.6
◆ P1 Pump Minimum Speed and No-Flow Detection
The iQpump drive can be programmed to operate the pump motor at a user set minimum speed and has three independent built-in
functions to protect the pump against a no-flow condition.
The following sections describe each of these functions.
■
Set Minimum Pump Speed (P1-06)
The required minimum operating speed of the pump motor can be set with Parameter P1-06 Minimum Pump Frequency.
Table 5.7
Parameter
No.
Address
Hex
Parameter Name
Digital Operator
Display
Description Range Default
Menu
Location
P1-01 0600
Pump Mode
Pump Mode
Select type of control operation.
0: Drive Only (Simplex)
1: Drive + 1 Pump
2: Drive + 2 Pumps
3: Memobus network
<0034>
0 ~ 3 0 Programming
P1-02
0601
System Units
System Units
0: WC: InchOfWater
1: psi: lb / SqrInch
2: GPM: Gallons / min
3: F: DegFarenheit
4: CFM: Cubic ft / min
5: CMH: Cubic m / hr
6: LPH: Liters / hr
7: LPS: Liters / s
8: Bar: Bar
9: Pa: Pascals
10: C: DegCelsius
11: Ft: Feet
<0032>
12:%: Percent
13: rpm: Revs / min
<0034>
14: Hz: Hertz <0034>
0 ~ 14 1 Programming
P1-03 0602
Feedback Device Scaling
Fb Dev Scaling
Scaling of feedback device in user units (P1-02=1, e.g. 150 psi).
Digits 1 through 4 set the maximum feedback number. Digit 5 determines
the number of decimal places.
Digit 5 = 0: Number format is XXXX
Digit 5 = 1: Number format is XXX.X
Digit 5 = 2: Number format is XX.XX
Digit 5 = 3: Number format is X.XXX
Examples:
01000 = 1000
13000 = 300.0
25000 = 50.00
32000 = 2.000
1 ~ 36000
(system
units
P1-02)
00145 Programming
Parameter
No.
Address
Hex
Parameter Name
Digital Operator
Display
Description Range Default
Menu
Location
P1-06

0605
Minimum Pump
Frequency
Min. Pump Freq.
Minimum drive frequency when operated in the auto mode. Programmed
value will limit minimum PID output. Minimum value has to be
programmed to a value smaller than P3-09 and P3-10 when the drive is
operating in the multiplex mode (P1-01).
0 ~ 120 Hz 40.0 Hz
Pump Quick
Setup
 Denotes that parameter can be changed when the drive is running.