Direct Access Parameter Information
W7B ASD Installation & Operation Manual
https://www.toshiba.com/tic/
137
Voltage Compensation Coefficient for Dead-time
Program
Special
Special Parameters
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.
Direct Access Number —
F488
Parameter Type —
Numerical
Factory Default —
163.8
Changeable During Run —
Yes
Minimum — 1.64
Maximum — 327.6
Dead Time Compensation
Program
Special
Special Parameters
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:
0 — Enabled
1 — Disabled
Direct Access Number —
F489
Parameter Type —
Selection List
Factory Default —
Enabled
Changeable During Run —
Yes
Dead Time Compensation Bias
Program
Special
Special Parameters
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.
Direct Access Number —
F490
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
Yes
Minimum — -32.768
Maximum — 32.767
Switching Frequency Between Current and Voltage Control
Program
Special
Special Parameters
This parameter sets the threshold frequency at which ASD control is
switched between Current-control and Voltage-control.
Direct Access Number —
F491
Parameter Type —
Numerical
Factory Default —
40.00
Changeable During Run —
Yes
Minimum — 10.00
Maximum — 60.00
Units — Hz
Acceleration Time 2
Program
Special
ACC/DEC 1-4 Settings
This parameter specifies the time in seconds for the drive to go from 0.0
Hz to the Maximum Frequency for the Acceleration 2 profile. The accel/
decel pattern may be set using
. The minimum accel/decel time
may be set using
.
This setting is also used to determine the acceleration rate of the UP/
DOWN Frequency function.
Note:
An acceleration time shorter than the load will allow may cause
nuisance tripping and mechanical stress to loads.
Automatic Accel/Decel and Stall settings may lengthen the acceleration
time.
Direct Access Number —
F500
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
Yes
Minimum —
Maximum — 6000
Units — Seconds
Summary of Contents for W7 DN-57442-006
Page 1: ...ADJUSTABLE SPEED DRIVES W7 DN 57442 006 INSTALLATION OPERATION MANUAL June 2020 ...
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Page 3: ...Document Number 57442 006 Date June 2020 W7 ASD Installation and Operation Manual ...
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