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W7 ASD Installation and Operation Manual 93
Overcurrent Stall Level
Program Protection Settings Overcurrent Stall Level
This parameter specifies the output current level at which the output frequency
is reduced in an attempt to prevent a trip. The overcurrent level is entered as a
percentage of the maximum rating of the ASD.
Note: Soft Stall must be enabled to use this feature.
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 0.00
Maximum — 200.0
Units — %
Overload Reduction Starting Frequency
Program Protection Settings Overload Reduction Starting
Frequency
This parameter is used to reduce the start frequency during very low-speed
motor operation. During very low-speed operation the cooling efficiency of the
motor decreases. Lowering the start frequency aides in minimizing the
generated heat.
Parameter Type — Numerical
Factory Default — 6.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 30.00
Units — Hz
Overspeed Detection Frequency Range
Program Protection Settings Overspeed Detection Frequency
Range
This parameter sets the upper level of the Base Frequency range that, once
exceeded, will cause an Overspeed Detected alert.
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — 30.0
Units — Hz
Overtorque Detection Time
Program Protection Settings Overtorque Detection Time
This parameter sets the amount of time that the overtorque condition may
exceed the tripping threshold level set at Overtorque Trip/Alarm Level
(Positive Torque) and Overtorque Trip/Alarm Level (Negative Torque)
before a trip occurs.
Parameter Type — Numerical
Factory Default — 0.50
Changeable During Run — No
Minimum — 0.00
Maximum — 100.0
Units — Seconds
Overtorque Trip
Program Protection Settings Overtorque Trip
This parameter Enables/Disables the Over Torque Tripping function.
When enabled, the ASD trips if an output torque larger than the setting of
parameters Overtorque Trip/Alarm Level (Positive Torque) or Overtorque
Trip/Alarm Level (Positive Torque) is detected for a time longer than the
setting of the Overtorque Detection Time parameter.
When disabled, the ASD does not trip due to overtorque conditions.
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Overcurrent Stall Level Overtorque Trip