Toshiba W7 manual Overcurrent Stall Level, Overload Reduction Starting Frequency, Overtorque Trip

Overcurrent Stall Level							Overtorque Trip
Overcurrent Stall Level
Program	⇒	Protection Settings			⇒	Overcurrent Stall Level	Parameter Type — Numerical
							Factory Default — (ASD-dependent)
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							Changeable During Run — Yes
percentage of the maximum rating of the ASD.
Note: Soft Stall must be enabled to use this feature.							Minimum — 0.00
							Maximum — 200.0
							Units — %
Overload Reduction Starting Frequency
Program	⇒	Protection Settings			⇒	Overload Reduction Starting	Parameter Type — Numerical
Frequency							Factory Default — 6.00
This parameter is used to reduce the start frequency during very low-speed							Changeable During Run — Yes
motor operation. During very low-speed operation the cooling efficiency of the
motor decreases. Lowering the start frequency aides in minimizing the							Minimum — 0.00
generated heat.							Maximum — 30.00
							Units — Hz
Overspeed Detection Frequency Range
Program	⇒	Protection Settings			⇒	Overspeed Detection Frequency	Parameter Type — Numerical
Range							Factory Default — 0.0
This parameter sets the upper level of the Base Frequency range that, once							Changeable During Run — Yes
exceeded, will cause an Overspeed Detected alert.
							Minimum — 0.0
							Maximum — 30.0
							Units — Hz
Overtorque Detection Time
Program		Protection Settings				Overtorque Detection Time	Parameter Type — Numerical
This parameter sets the amount of time that the overtorque condition may							Factory Default — 0.50
exceed the tripping threshold level set at Overtorque Trip/Alarm Level							Changeable During Run — No
(Positive Torque) and Overtorque Trip/Alarm Level (Negative Torque)
before a trip occurs.							Minimum — 0.00
							Maximum — 100.0
							Units — Seconds
Overtorque Trip
Program		Protection Settings				Overtorque Trip	Parameter Type — Selection List
This parameter Enables/Disables the Over Torque Tripping function.							Factory Default — Disabled
When enabled, the ASD trips if an output torque larger than the setting of							Changeable During Run — No
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.
W7 ASD Installation⇒				and Operation Manual⇒			93