Direct Access Parameter Information
Q9 Plus ASD Install/Op Manual
https://www.toshiba.com/tic/ 171
Virtual Linear Pump External Device Low Band Threshold
Program Virtual Linear Pump Run External Devices
During a properly configured Virtual Linear Pump operation, this
parameter establishes the upper limit of the Virtual Linear Pump
Minimum (Threshold) threshold.
See F480 for additional information on this parameter.
Direct Access Number —
F481
Parameter Type — Numerical
Factory Default — 10
Changeable During Run — Yes
Minimum — 0
Maximum — 30
Virtual Linear Pump External Device High Band Threshold
Program Virtual Linear Pump Run External Devices
This parameter sets the lower limit of the Virtual Linear Pump
Maximum (Threshold) threshold.
See F480 for additional information on this parameter.
Direct Access Number —
F482
Parameter Type — Numerical
Factory Default — 10
Changeable During Run — Yes
Minimum — 0
Maximum — 30
Virtual Linear Pump Low Suction/No-Flow Cut Off Mode
Program Virtual Linear Pump Low Suction/No Flow Cut Off
This parameter is used to halt the ASD in the event of the loss of
feed water to the pump or if there is a closed output valve at the
pump output.
A low-pressure suction switch may be used to detect the loss of
feed water by opening or closing a circuit in the event of feed
water loss. The switch state change would result in the activation
of a discrete input terminal (set to Low Suction/No Flow Protec-
tion) resulting in an AbFL trip.
Either a closed output valve or a suction pressure loss will result
in the ASD running at the Upper-Limit Frequency indefinitely.
To monitor the Upper-Limit Frequency run time for either condi-
tion, set F484 for the time that the ASD may output the Upper-
Limit Frequency continuously before the system initiates an AbFL
trip.
Set this parameter to On (Physical Switch) if using a discrete
input terminal for detection.
Set this parameter to On (Electronic Switch) if using the Upper
Limit run-time for detection — set the run-time limit at F484.
Note: The On (Electronic Switch) setting allows for the availability
of the Trip (0) and Alarm (1) selections at F450 ONLY.
Settings:
0 — Off
1 — On (Physical Switch)
2 — On (Electronic Switch)
Direct Access Number —
F483
Parameter Type — Selection List
Factory Default — Off
Changeable During Run — Yes
F481 – F484
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