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F300
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.
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 (F312) for additional information on this setting.
Settings:
0 — Off
1 — Power Failure
2 — Make/Break ST
3 — Make/Break ST or Power Failure
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 (F301) 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)
Settings:
0 — Off
1 — Ridethrough
2 — Deceleration Stop
120
is required.
Direct Access Number — F300
Parameter Type — Numerical
Factory Default — (ASD-Dependent)
Changeable During Run — No
Minimum — 0.500
Maximum — (ASD-Dependent)
Units — kHz
Direct Access Number — F301
Parameter Type — Selection List
Factory Default — Off
Changeable During Run — Yes
Direct Access Number — F302
Parameter Type — Selection List
Factory Default — Off
Changeable During Run — Yes
WX9 ASD Installation and Operation Manual
F302
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