Q9 Plus ASD Installation and Operation Manual
149
Virtual Linear Pump Start/Stop Mode
Program
Virtual Linear Pump
Start and Stop Points
During a properly configured
Virtual Linear Pump
operation, this parameter
Enables/Disables
the ability of the system to receive transducer input to
manage system starts and stops as it pertains to the process variable.
This parameter is also used to select the ASD response (Stop or Start) upon
meeting the criteria of
F388
and
F389
settings.
On Forward
= Run ASD while measured signal is
F388
setting and stop
ASD upon reaching
F389
setting.
On Reverse
= Run ASD while measured signal is
F389
setting and stop ASD
upon reaching
F388
setting.
Settings:
0 — Off
1 — On (Forward Acting)
2 — On (Reverse Acting)
Direct Access Number — F385
Parameter Type —
Selection List
Factory Default —
Off
Changeable During Run —
Yes
Virtual Linear Pump Start-Stop Delay Timer
Program
Virtual Linear Pump
Start and Stop Points
During a properly configured
Virtual Linear Pump
operation, this parameter
establishes the time that the
Start-Stop
criteria of
F388
and
F389
must be
maintained to activate the
Auto Start-Stop
function.
This feature is used to minimize system responses to rapid fluctuations in the
feedback signal.
See
F385
for additional information on this parameter.
Direct Access Number — F387
Parameter Type —
Numerical
Factory Default —
5.0
Changeable During Run —
Yes
Minimum — 0.1
Maximum — 6553.5
Units — Seconds
Virtual Linear Pump Low Start/Stop Point
Program
Virtual Linear Pump
Start and Stop Points
During a properly configured
Virtual Linear Pump
operation while in the
On
Forward
or
On Reverse
modes (
F385
), this parameter establishes the lower
level of the
Auto Start-Stop
threshold.
See
F385
for additional information on this parameter.
The unit of measure for this parameter may be one of the following types — the
type is selected while running the
Virtual Linear Pump Setup Wizard
.
• PSI
• GPM
• Inches of Water Column
• Feet of Water Column
• CFM
• °C
• °F
• Custom
(Custom selection allows for three character spaces to be populated from the 26
alphabet and 13 special characters)
Direct Access Number — F388
Parameter Type —
Numerical
Factory Default —
0.0
Changeable During Run —
Yes
Minimum —
F403
Setting
Maximum —
F393
Setting
Units — Selectable at Wizard
WARNING
The Auto Start-Stop operating mode may result in the
unexpected Start or Stop of the motor. Signs to this effect are
to be posted at the location of the motor/pump.
F385
F388
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