G7 ASD Operation Manual
111
PWM Carrier Frequency
Program
⇒
Special Control Parameters
⇒
Carrier Frequency
This parameter sets the frequency of the pulse width modulation signal applied
to the motor.
Note:
The carrier frequency must be 2.2 kHz or above except when
operating in the Constant Torque, Variable Torque, or the 5-
Point Setting modes.
Note:
The maximum Carrier Frequency setting allowed is 5.0 kHz for
the following ASDs:
230-volt
⇒
75 HP – 150 HP.
460-volt
⇒
150 HP – 350 HP.
600-volt
⇒
150 HP – 300 HP.
The maximum Carrier Frequency setting allowed for all other
ASDs is 15 kHz.
Setting the Carrier Frequency above the Derate Threshold frequency (as listed
below) for a given ASD will reduce the capability of the ASD.
Direct Access Number — F300
Parameter Type — Numerical
Factory Default — 2.200
Changeable During Run — No
Minimum — 0.500
Maximum — (ASD-dependent)
Units — kHz
Example
Break/Make ST
Program
⇒
Protection Parameters
⇒
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). This
parameter also Enables/Disables
F312
and
F313
.
Settings:
Box checked (Enabled)
Box not checked (Disabled)
Direct Access Number — F301
Parameter Type — Check Box
Factory Default — Disabled
Changeable During Run — Yes
Carrier-Frequency Derate Threshold Frequency
Derate Threshold Frequency
2.2 kHz
5.0 kHz
6.0 kHz
8.0 kHz
V T 1 3 0 G 7 U
2750B – 215KB
2500B
6160B
2010B – 2600B
2750B – 215KB
2600B
6400B
2400B
415KB – 435KB
4400B
6400B
4015B – 4330B
415KB – 435KB
412KB
4500B – 410KB
615KB – 635KB
410KB
4600B – 4750B
412KB
6015B – 6120B
610KB
6220B – 6330B
610KB
6220B – 6330B
612KB
6500B – 6750B
6500B – 6750B
F300
F301