120
WX9 ASD Installation and Operation Manual
PWM Carrier Frequency
Program
Special
Carrier Frequency
This parameter sets the frequency of the pulse width modulation signal applied
to the motor.
Note:
When operating in the
Vector Control
mode, the carrier
frequency should be set to 2.2 kHz or above.
Note:
If the PWM carrier frequency is set at 2.0 kHz or above, it cannot
be decreased below 2.0 kHz while running. If the PWM carrier
frequency is set at 1.9 kHz or below, it cannot be increased above
2.0 kHz while running. Either change requires that the ASD be
stopped and restarted for the changes to take effect.
Direct Access Number
—
F300
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
No
Minimum — 0.500
Maximum — (ASD-Dependent)
Units — kHz
Auto Restart Selection
Program
Protection
Retry/Restart
This parameter Enables/Disables the ability of the drive to start into a spinning
motor when the
ST
–
CC
connection opens momentarily and is then closed
(Break/Make ST) or after a power interruption (momentary power failure).
See
Scan Rate
(
) for additional information on this setting.
Settings:
0 — Off
1 — Power Failure
2 — Make/Break ST
3 — Make/Break ST or Power Failure
Direct Access Number — F301
Parameter Type —
Selection List
Factory Default —
Off
Changeable During Run —
Yes
Regenerative Power Ridethrough Selection
Program
Protection
Under-Voltage/Ridethrough
This parameter determines the motor-control response of the drive in the event
of a momentary power outage, under-voltage condition, or an
Auto Restart
Selection
(
) selection (1-3) event.
During a
Ridethrough
, regenerative energy is used to maintain the control
circuitry settings for the duration of the
Ridethrough
; it is not used to drive the
motor. The motor(s) of the system are stopped and then restarted automatically
if so configured.
Note:
If used to restart the motor, the Retry setup of
Auto Restart
Selection
F301)
is required.
Settings:
0 — Off
1 — Ridethrough
2 — Deceleration Stop
Direct Access Number — F302
Parameter Type —
Selection List
Factory Default —
Off
Changeable During Run —
Yes
Содержание WX9 ASD
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