Toshiba G7 Operation Manual page 145

F487
Compensation Coefficient for Iron Loss
Program ⇒ Special Control Parameters ⇒ Special Parameters⇒
Compensation Coefficient for Iron Loss
This parameter compensates for losses in the rotor-to-stator coupling of the
excitation and torque current energy.
Voltage Compensation Coefficient for Dead Time
Program ⇒ Special Control Parameters ⇒ Special Parameters⇒
Voltage Compensation Coefficient for Dead Time
This parameter adjusts the degree of voltage compensation during dead time by
increasing or decreasing the on-time of the programmed PWM just prior to the
start of the dead time.
Dead Time Compensation (Enable)
Program ⇒ Special Control Parameters ⇒ Special Parameters⇒ Dead
Time Compensation
This parameter Enables/Disables the Dead Time Compensation function. The
Dead Time Compensation feature provides a smoothing of the on-off IGBT
signal that feeds the Gate Driver board during the off portion of the on-off
cycle.
Settings:
Enabled
Disabled
Dead-time Compensation Bias
Program ⇒ Special Control Parameters ⇒ Special Parameters⇒ Dead-
time Compensation Bias
This parameter sets a bias for the Dead-time Compensation function. The
Dead-time Compensation feature provides a smoothing of the on-off IGBT
signal that feeds the Gate Driver board.
Switching Frequency of Current/Voltage Control
Program ⇒ Special Control Parameters ⇒ Special Parameters ⇒
Switching Frequency between Current and Voltage Control
This parameter sets the threshold frequency at which ASD control is switched
between Current-control and Voltage -control.
G7 ASD Operation Manual
Direct Access Number — F487
Parameter Type — Numerical
Factory Default — 105.0
Changeable During Run — Yes
Minimum — 0
Maximum — 255
Direct Access Number — F488
Parameter Type — Numerical
Factory Default — 163.8
Changeable During Run — Yes
Minimum — 1.64
Maximum — 327.6
Direct Access Number — F489
Parameter Type — Selection List
Factory Default — Enabled
Changeable During Run — Yes
Direct Access Number — F490
Parameter Type — Numerical
Factory Default — 0.000
Changeable During Run — Yes
Minimum — -32.768
Maximum — 32.767
Direct Access Number — F491
Parameter Type — Numerical
Factory Default — 40.00
Changeable During Run — Yes
Minimum — 10.00
Maximum — 60.00
Units — Hz
F491
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