Yaskawa iQpump Controller Programming Manual - Manual (Page 161)

YASKAWA TM.iQp.07 iQpump Controller Programming Manual 161
The iQpump drive can be configured to enter a “sleep” condition based on the programmed Sleep Level Type (P2-01). The drive will
enter the sleep mode when the output frequency or current falls below the programmed Sleep Level (P2-02). When the Sleep Level Type
(P2-01) is set to Feedback (P2-01 = 2), the drive will enter the sleep mode when the feedback signal rises above the programmed Sleep
Level (P2-02).
The display units for the Sleep Level (P2-02) are determined by the setting of P1-02.
A value of 0 programmed into the Sleep Level (P2-02) disables the sleep function. This function is only active during operation in the
Auto Mode.
If P1-01 = 3, the function is active when there is only one drive running on the network.
Note: The Sleep Level (P2-02) has to be programmed above the Minimum Pump Frequency (P1-06) for the sleep function to
operate. If P2-02 = 0, pump will sleep at minimum speed.
◆ P2-03 Sleep Delay Time
Setting Range: 0 ~ 3600 s
Factory Default: 5 s
The iQ Pump drive can be configured to enter a “sleep” condition based on the programmed Sleep Level (P2-02) and Sleep Level Type
(P2-01). The drive can be programmed to provide a delay time before the drive enters the sleep mode by programming the Sleep Delay
Time (P2-03).
The Sleep Delay Time (P2-03) works in conjunction with the Sleep Level (P2-02).
◆ P2-04 Delta Sleep Feedback Drop Level
Setting Range: 0.0 ~ 6000.0
Factory Default: 0.0
The iQpump drive can be configured to detect a no-flow condition when the drive enters the sleep mode. The drive will monitor the
incoming feedback signal. If the difference between the system setpoint and the feedback exceeds the Delta Sleep Feedback Drop Level
(P2-04) within the programmed Feedback Detection Drop Time (P2-05) and the output frequency is greater than the Minimum Pump
Frequency (P1-06), the drive will stop decelerating (sleep deactivate) and return to normal operation (flow detected).
The drive will enter the sleep mode when the difference between the system setpoint and the feedback are smaller than the Delta Sleep
Feedback Drop Level (P2-04). This function is only active during operation in the Auto Mode. A value of 0 programmed into Delta Sleep
Feedback Drop Level (P2-04) will disable this function.
The Delta Sleep Feedback Drop Level (P2-04) works in conjunction with the Feedback Detection Drop Time (P2-05).
Note: A no-flow detection during deceleration is only active when the output frequency is greater than the Thrust Bearing
Frequency (P4-05).
Setting Display Units
0 Hz (Hertz)
1 A (Amps)
2 Determined by System Units P1-02
3 rpm <0034>
4 Determined by P6-02 selection <0034>