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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
turned off.
This condition is used as an indication of loss of feed water or a
closed output valve. See
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
tion on this function.
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
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
Settings:
0 — Disabled
1 — Enabled
172
–
F484
Direct Access Parameter Information
Q9 Plus ASD Install/Op Manual
continuously before the system is
F483
for additional information on this
F450
for additional informa-
Sealing
Water.
F495
Direct Access Number —
Parameter Type — Numerical
Factory Default — 10
Changeable During Run — Yes
Minimum — 1
Maximum — 255
Units — Seconds
Direct Access Number —
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — Yes
Sealing
https://www.toshiba.com/tic/
F484
F485
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