Q9 ASD Installation and Operation Manual 65
Manual Torque Boost 1
Program Fundamental 1
The Manual Torque Boost 1 function is used to increase the low frequency
torque for high-inertia loads by increasing the output voltage at frequencies below
½ of the Base Frequency 1 (F014) setting.
The value programmed as a boost percentage establishes an output voltage vs.
output frequency relationship to be used to start the motor or to provide smoother
operation.
Note: Setting an excessive Torque Boost level may cause nuisance
tripping and mechanical stress to loads.
Direct Access Number — F016
Parameter Type — Numerical
Factory Default — (ASD-Dependent)
Changeable During Run — Yes
Minimum — 0.0
Maximum — 30.0
Units — %
Soft Stall Selection
Program Protection
This parameter is used to protect the motor from an over-current condition by
automatically reducing the output frequency when approaching an overload
condition.
The Overload/Stall setting and the type of motor being used is selected here to
better match the application.
This parameter setting may extend the Over-Voltage Stall time settings.
Settings:
0 — Overload Trip without Stall
1 — Overload Trip with Stall
2 — No Overload without Stall
3 — Stall Only
4 — V/f Motor-Overload without Stall
5 — V/f Motor-Overload with Stall
6 — V/f Motor-No Overload without Stall
7 — V/f Motor-Stall Only
Direct Access Number — F017
Parameter Type — Selection List
Factory Default — O/L Trip With Stall
Changeable During Run — Yes
F016 F017
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