YASKAWA TM.iQp.07 iQpump Controller Programming Manual 153
Table 59 Parameters
Table 60 Modified Multi-Function Input Setting
Table 61 Multi-Function Input Setting
Table 62 Faults
◆ P1-16 Loss of Prime Time <0034>
Setting Range: 1 - 600 s
Factory Default: 20 s
Prime Loss Time: The “Prime Loss” detection is no longer controlled by parameter P1-12. Instead it is controlled by a new parameter,
P1-16. Also, the “Prime Loss” detection is enabled during the pre-charge function, but only when not ramping (output frequency = pre-
charge frequency).
• Parameter P1-16 is used as the “Loss of Prime” fault timer.
• Parameter P1-16 should be enabled when in pre-charge, but only when the output frequency is within 1 Hz of the pre-charge frequency.
• Loss of Prime Detection is allowed when output frequency is within 1 Hz of d2-01 value instead of the fmax value.
• Loss of Prime Detection is allowed regardless of how many pumps are staged (contactor multiplex operation).
• Loss of Prime is enabled during Timed Run and Run / Stop Control.
Parameter
No.
Addr.
Hex
Parameter Name
Digital Operator Display
Description Range Default
Menu
Location
P1-15 10A
Low / Hi Water Digital Input
Configuration
Water DI Config
0 = Low N.O.-Hi N.O. (Low Water Normally Open High Water
Normally Open)
1 = Low N.C.-Hi N.O. (Low Water Normally Closed High Water
Normally Open)
2 = Low N.O.-Hi N.C. (Low Water Normally Open High Water
Normally Closed)3
3 = Low N.C.-Hi N.C. (Low Water Normally Closed High Water
Normally Closed)
0 ~ 3 0 Programming
Setting Description
85
Low Water Level
Function Active in Auto Mode during normal operation, also used with pre-charge function.
Function logic depends on parameter P1-15 (Water DI Config)
P1-15 = 0 or 2 (Normally Open)
Closed: Low Water Level Fault
Open: Reservoir / Tank is filled to normal level
P1-15 = 1 or 3 (Normally Closed)
Closed: Reservoir / Tank is filled to normal level
Open: Low Water Level Fault
Pre-charge function: Function uses low water level input as “Tank / Reservoir” feedback to indicate water level reached. Important: Program
P1-15 to 0 or 2 when the “Low Water” function is not used.
Setting Description
76
High Water Level
Function will be active whenever the drive is running.
Function logic depends on parameter P1-15 (Water DI Config)
P1-15 = 0 or 1 (Normally Open)
Closed: High Water Level Fault
Open: Reservoir / Tank is filled to normal level
P1-15 = 2 or 3 (Normally Closed)
Closed: Reservoir / Tank is filled to normal level
Open: High Water Level Fault
Fault Display Description Cause Countermeasures
High FB / High Water
HFB / HW
High Feedback Fault -
Feedback signal is too high.
OR
The “High Water Level” digital
input is active (H1-0x = 88).
The feedback level has risen above P1-09 level for the
time specified in P1-10. High feedback fault is active
in Hand Mode, Auto Mode, Pre-charge and Thrust
Mode when the drive is running.
OR
High Water Level Switch is activated / defective or P1-
15 is programmed incorrectly.
Feedback level lower than P1-09 High Feedback
Level.
OR
Lower the water level / adjust the High Water Level
switch.
High FB /Water
HFB/HW
0.00 Hz
0.00 A
U2-04 =
U2-05 =
(522 pages)
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