Q9 Plus ASD Installation and Operation Manual
167
Virtual Linear Pump Low Suction/No Flow Cut Off Delay
Timer
Program
Virtual Linear Pump
Low Suction/No Flow Cut Off
This parameter has three functions.
1.
It is used to set the time that the ASD will be allowed to run at the
Upper-
Limit Frequency
continuously before the system is turned off.
This condition is used as an indication of loss of feed water or a closed
output valve. See
F483
for additional information on this function.
2.
It is used to set the time that a
Low Suction/No Flow
condition is allowed
to continue before a shut down.
3.
It is used to set the time that must lapse before a system restart is attempted
after a system shut down due to a
Low Suction/No Flow
condition. See
F450
for additional information on this function.
Direct Access Number — F484
Parameter Type —
Numerical
Factory Default —
10
Changeable During Run —
Yes
Minimum — 1
Maximum — 255
Units — Seconds
Virtual Linear Pump Sealing Water Mode
Program
Virtual Linear Pump
Sealing Water
This parameter
Enables/Disables
seal water detection.
On larger or older pumps, external sealing water is required at start up. The
ASD will not start until adequately supplied with sealing water.
An external sealing water pump is required to supply sealing water and is
enabled via an ASD output contactor set to
Sealing Water
.
Normal ASD operations are allowed once an adequate water supply is detected
at the seal, as detected by a pump-mounted reed switch that is connected to a
discrete input terminal of the ASD.
Set the discrete input terminal to
Sealing Water
.
Settings:
0 — Disabled
1 — Enabled
Direct Access Number — F485
Parameter Type —
Selection List
Factory Default —
Disabled
Changeable During Run —
Yes
Max Output Voltage Modulation Rate
Program
Feedback
PG Settings
This parameter is used to adjust the duty cycle of the PWM that is being applied
to the motor. Changes to this parameter are effective in reducing the output cur-
rent during an undervoltage condition (which may result in an increased output
current).
Settings:
0 — Standard
1 — 100%
2 — 102.50%
3 — 105%
Direct Access Number — F495
Parameter Type —
Selection List
Factory Default —
Standard
Changeable During Run —
No
Permanent Magnet (PM) Motor Constant 1
Program
Motor
PM Motor
This parameter is used with synchronous motor applications only.
Contact the TIC Customer Support Center for information on this parameter.
Direct Access Number — F498
Parameter Type —
Numerical
Factory Default —
10.0
Changeable During Run —
No
Minimum — 0.0
Maximum — 100.0
Units — %
F484
F498
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