Toshiba WX9 ASD Installation & Operation Manual page 158

F451
Torque Limit Mode (Speed Dependent)
Program Torque Torque Limit Settings
This parameter allows for either wide or very limited speed fluctuations while
operating in the Torque Control mode.
The ASD output follows the commanded speed when No Speed Cooperation
is selected and has a very limited speed fluctuation range when Standard is
selected.
Settings:
0 — Standard
1 — No Speed Cooperation
Power Running Stall Continuous Trip Detection Time
Program Protection Stall
This parameter allows the user to extend the Over-Voltage Limit Operation
(F305) and the Motor Overload Protection Configuration (F017) time
settings.
Regenerative Braking Stall Prevention Mode Selection
Program Protection Stall
This parameter Enables/Disables the Over-Voltage Limit Operation (F305)
and the Over-Current Stall (F017) function during regeneration only.
Application-specific conditions that warrant disabling the Stall function during
regeneration may occur.
Settings:
0 — Enabled
1 — Disabled
Current Differential Gain
Program Special Special Parameters
This parameter determines the degree that the current differential function
affects the output signal. The larger the value entered here, the more
pronounced the Current Differential Gain.
VI/II Bias
Program Frequency  Speed Reference Setpoints
This parameter is used to fine-tune the bias of the VI/II input terminals.
Note: See note on pg. 21
terminal.
This setting may be used to ensure that the zero level of the input source (pot,
pressure transducer, flow meter, etc.) is also the zero level setting of the ASD
system.
This is accomplished by setting the input source to zero and either increasing or
decreasing this setting to provide an output of zero from the ASD.
146
for additional information on the VI/II
Direct Access Number — F451
Parameter Type — Selection List
Factory Default — Standard
Changeable During Run — Yes
Direct Access Number — F452
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — 1.00
Units — Seconds
Direct Access Number — F453
Parameter Type — Selection List
Factory Default — Enabled
Changeable During Run — Yes
Direct Access Number — F454
Parameter Type — Numerical
Factory Default — (ASD-Dependent)
Changeable During Run — Yes
Minimum — 0.00
Maximum — 327.6
Direct Access Number — F470
Parameter Type — Numerical
Factory Default — 99
Changeable During Run — Yes
Minimum — 0.0
Maximum — 255
WX9 ASD Installation and Operation Manual
F470