Toshiba Q9 Series, Installation And Operation Manual, Page: 108 / 233

98 Q9 ASD Installation and Operation Manual
Run Frequency
Program

Special Controls
This parameter establishes a center frequency (Run Frequency) of a frequency
band.
Parameter F242 provides a plus-or-minus value for the Run Frequency; thus,
establishing a frequency band.
During acceleration, the ASD will not output a signal to the motor until the lower
level of the band is reached.
During deceleration, the ASD will continue to output the programmed
deceleration signal to the motor until the lower level of the band is reached; at
which time the output will go to 0.0 Hz.
Direct Access Number — F241
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — Max. Freq. ( F011 )
Units — Hz
Run Frequency Hysteresis
Program

Special Controls
This parameter provides a plus-or-minus value for the Run Frequency setting
(F241 ).
Direct Access Number — F242
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 30.0
Units — Hz
End Frequency
Program

Special Controls
This parameter sets the lowest frequency that the ASD will recognize during
deceleration before the ASD goes to 0.0 Hz.
Direct Access Number — F243
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 30.0
Units — Hz
0 Hz Dead Band Signal
No Path — Direct Access Only
This parameter sets an output frequency threshold that, until the commanded
frequency surpasses this setting, the ASD will output 0 Hz to the motor.
This setting will override the Startup Frequency setting ( F240 ) if this setting has
a higher value.
Direct Access Number — F244
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 5.00
Units — Hz
F241 F244