Toshiba G7 Lower Limit Frequency, F013 F015, Motor #1 Base Frequency, V/f Pattern

64 G7 ASD Operation Manual
Lower Limit Frequency
Program ⇒ Fundamental Parameters ⇒ Frequency Settings
This parameter sets the lowe st fre qu e ncy that the ASD will accept as a
frequency command or frequency setpoint. The ASD will output frequencies
lower than the Lower Limit Frequency when accelerating to th e lower limit or
decelerating to a stop. Frequencies below the Lower Limit may also be output
when operating in the PID Control mode, Torque Control mode, or the
Vecto r Con tro l modes (sensorless or feedback).
Direct Access Number — F013
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — Upper Limit (F012)
Units — Hz
Motor #1 Base Frequency
Program ⇒ Fundamental Parameters ⇒ Motor Set #1
The Base Frequency setting determines the frequency at which the output
voltage of the ASD reaches its maximum setting. The maximum voltage setting
cannot be more that the input voltage (see Maximum Output Voltage at
F306). There are four Base Frequency profile settings: #1 – #4.
Note: For proper motor operation, the Base Freque ncy is normally set
for the name-plated frequency of the mot or.
Direct Access Number — F014
Parameter Type — Numerical
Factory Default — 60.0
Changeable During Run — Yes
Minimum — 25.0
Maximum — 299.0
Units — Hz
V/f Pattern
Program ⇒ Fundamental Parameters ⇒ Frequency Settings
This function establishes the relationship between the output frequency and the
output voltage.
Settings:
Constant Torque
Variable Torque
Automatic Torque Boost
Sensorless Vector Control (speed)
Auto Torque Boost with Automatic Ener gy Savings
Sensorless Vector Control (speed) with Automatic Energy Savings
V/f 5-Point Setting (opens 5-point setting screen)
Sensorless Vector Control (speed/torque switching)
PG Feedback Vector Control (speed/torque switching)
PG Feedback Vector Control (speed/position switching)
Note: For proper operation, the carrier frequency must be 2.2 kHz or
above except when operating in the Constant Torque, Variable
Torque, or the 5-Point Setting modes.
The Automatic Torque Boost and the Sensorless Vector Control selections
use the motor tuning parameters of the drive to properly configure the ASD for
the motor being used. If Load Reactors or Long Lead Filters are used, or if
the capacity of the ASD is greater than the motor, manual tuning of the motor
parameters may be required for optimum performance.
Direct Access Number — F015
Parameter Type — Selection List
Factory Default — Constant Torque
Changeable During Run — No
F013 F015