F487

F491

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.

Direct Access Number — F487

Parameter Type — Numerical

Factory Default — 105.0

Changeable During Run — Yes

Minimum — 0

Maximum — 255

Voltage Compensation Coefficient for Dead Time

Direct Access Number —

F488

Program Special Control Parameters Special Parameters

Parameter Type — Numerical

Voltage Compensation Coefficient for Dead Time

Factory Default — 163.8

 

This parameter adjusts the degree of voltage compensation during dead time by

Changeable During Run — Yes

 

 

increasing or decreasing the on-time of the programmed PWM just prior to the

Minimum — 1.64

 

start of the dead time.

Maximum — 327.6

 

 

 

 

 

 

Dead Time Compensation (Enable)

Direct Access Number —

F489

Program Special Control Parameters Special ParametersDead

Parameter Type — Selection List

Time Compensation

Factory Default — Enabled

 

This parameter Enables/Disables the Dead Time Compensation function. The

Changeable During Run — Yes

 

 

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

Direct Access Number —

F490

Program Special Control Parameters Special ParametersDead-

Parameter Type — Numerical

time Compensation Bias

Factory Default — 0.000

 

This parameter sets a bias for the Dead-time Compensation function. The

Changeable During Run — Yes

 

 

Dead-time Compensation feature provides a smoothing of the on-off IGBT

Minimum — -32.768

 

signal that feeds the Gate Driver board.

Maximum — 32.767

 

 

 

 

 

 

Switching Frequency of Current/Voltage Control

Direct Access Number —

F491

Program Special Control Parameters Special Parameters

Parameter Type — Numerical

Switching Frequency between Current and Voltage Control

Factory Default — 40.00

 

This parameter sets the threshold frequency at which ASD control is switched

Changeable During Run — Yes

 

 

between Current-control and Voltage -control.

Minimum — 10.00

 

Maximum — 60.00

Units — Hz

G7 ASD Operation Manual

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Image 145
Toshiba G7 manual Compensation Coefficient for Iron Loss, Voltage Compensation Coefficient for Dead Time