GX9 ASD Installation and Operation Manual
161
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 —
(ASD-Dependent)
Changeable During Run —
Yes
Minimum — 0.00
Maximum — 327.67
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 — -32768
Maximum — 32767
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
Unit — Hz
Acceleration Time 2
Program
Special
Accel/Decel (1 – 4) Settings
This parameter specifies the time in seconds for the output of the ASD to go
from 0.0 Hz to the
Maximum Frequency
for the
2 Acceleration
profile. The
Accel/Decel pattern may be set using
. The minimum Accel/Decel time
may be set using
.
This setting may be adjusted to stabilize unstable
Virtual Linear Pump
operation.
This setting is also used to determine the acceleration rate of the
UP/DOWN
Frequency Functions
.
Note:
An acceleration time shorter than the load will allow may cause
nuisance tripping and mechanical stress to loads.
Automatic
Accel/Decel
,
Stall
, and
Ridethrough
settings
may lengthen the
acceleration times.
Direct Access Number — F500
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
Yes
Minimum — Acc/Dec Lower Limit
(
Maximum — 6000.00
Units — Seconds
Summary of Contents for GX9
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