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Direct Access Parameter Information
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
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
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
-
tion 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
.
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
Direct Access Number —
F485
Parameter Type —
Selection List
Factory Default —
Disabled
Changeable During Run —
Yes
Summary of Contents for DN-68249-003
Page 1: ...ADJUSTABLE SPEED DRIVES Q9 DN 68249 003 INSTALLATION OPERATION MANUAL April 2020 ...
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Page 3: ...Document Number 68249 003 April 2020 Q9 Plus ASD Installation Operation Manual ...
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Page 12: ...Table of Contents Q9 Plus ASD Install Op Manual iv https www toshiba com tic ...
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