Toshiba WX9 ASD, Руководство по установке и эксплуатации

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WX9 ASD Installation and Operation Manual 113
PG Point 2 Frequency
Program

Frequency

Speed Reference Setpoints
This parameter is used to set the direction, gain, and bias of the PG input
terminal when it is used as the Speed/Direction - Control input.
This parameter sets PG Point 2 Frequency and is the frequency that is
associated with the setting of PG Reference Point 2 ( F236 ).
See PG Reference Point 1 ( F234
)
for additional information on this setting.
Direct Access Number — F237
Parameter Type — Numerical
Factory Default — + 60.0
Changeable During Run — Yes
Minimum — - (Maximum Freq. ( F011 ))
Maximum — + (Maximum Freq. ( F011 ))
Units — Hz
Start Frequency
Program

Special

Frequency Control
The output of the drive will remain at 0.0 Hz until the programmed speed value
exceeds this setting during startup. Once exceeded during startup, the output
frequency of the drive will accelerate to the programmed setting.
Output frequencies below the Start Frequency will not be output from the
drive during startup. However, once reaching the Start Frequency , speed
values below the Start Frequency may be output from the drive.
If the setting of this parameter results in an over-current condition at startup,
reduce the setting of this parameter to a value less than the rated slippage of the
motor.
If zero-speed torque is required, set this parameter and the End Frequency
( F243) to 0.0 Hz.
This setting will override the Dead Band of 0 Hz Frequency Setting Signal
( F244) if this setting has a higher value.
This parameter setting is used during a Jog as the Lower-Limit Frequency
(see F260 ).
Direct Access Number — F240
Parameter Type — Numerical
Factory Default — 0.10
Changeable During Run — Yes
Minimum — 0.0
Maximum — 10.0
Units — Hz
Run Frequency
Program

Special

Frequency Control
This parameter establishes a center frequency ( Run Frequency ) of a frequency
band.
The Run Frequency Hysteresis ( F242 ) setting provides a plus-or-minus value
for the Run Frequency , thus establishing a frequency band.
During acceleration, the drive will not output a signal to the motor until the
lower level of the band is reached.
During deceleration, the drive will continue to output the programmed
deceleration output signal to the motor until the lower level of the band is
reached. When the lower level of the band is reached, the output will go to 0.0
Hz.
Direct Access Number — F241
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — Maximum Freq. ( F011 )
Units — Hz
Run Frequency Hysteresis
Program

Special

Frequency Control
This parameter provides a plus-or-minus value for the Run Frequency
(
F241 ) setting.
Direct Access Number — F242
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — 30.0
Units — Hz
F237 F242