Yaskawa iQpump Controller Programming Manual - Manual (Page 162)

162 YASKAWA TM.iQp.07 iQpump Controller Programming Manual
Figure 1.116
Figure 120. No-Flow Detection During Deceleration
◆ P2-05 Feedback Detection Drop Time
Setting Range: 0 ~ 3600 s
Factory Default: 10 s
The iQpump drive can be configured to detect a no-flow condition. The drive can be programmed to monitor the feedback signal during a
flow, no-flow condition for a programmed Feedback Detection Drop Time (P2-05).
The Feedback Detection Drop Time (P2-05) works in conjunction with the Delta Sleep Feedback Drop Level (P2-04).
◆ P2-06 Sleep Mode: Cycling Protection
Setting Range: 0 ~ 10
Factory Default: 0
The iQpump drive can be configured to allow a maximum number of cycles before initiating a “Pump Over Cycle Fault (POC).” The
drive will determine the maximum number of cycles based on the programmed number in the Sleep Mode: Cycling Protection (P2-06).
One cycle is defined by the drive transferring from normal operation to sleep mode when operating in the Auto Mode. A value of 0
programmed into the Sleep Mode: Cycling Protection (P2-06) will disable this function.
The maximum time allowed between cycles can be programmed in the Sleep Mode: Maximum Cycling Protection Time (P2-07).
TIME
Output Frequency
Sleep Delay Time
P2-03
Feedback
Auto Mode Run
Sleep Active
Wait for Start
Sleep Level
P2-02
STOP, 0Hz
0%
OFF Mode
Start Level
P1-04
FB Drop
Check
AUTO MODE RUN
Ramp
Down
Start System, Incoming Run Command
Start System
Min. Frequency
P1-06
AUTO MODE RUN
Start Level Delay
P1-05
START DELAY
System
Set-Point
P2-04 Delta FB Drop Level
P2-05 Feedback Drop Detection Time
Sleep Detected
Feedback Drop
Detected