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104 W7 ASD Installation and Operation Manual
PWM Carrier Frequency
Program Special Control PWM 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 or the Variable Torque
modes.
Note: The maximum Carrier Frequency setting allowed is 5.0 kHz
for the 460-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.
Parameter Type — Numerical
Factory Default — 2.200
Changeable During Run — No
Minimum — 0.500
Maximum — (ASD-dependent)
Units — kHz
Ramped PWM Enable
Program Special Control Ramped PWM Enable
Enables/Disables the variable PWM frequency.
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Receive Address
Program Communication Settings S20 Settings
This setting establishes a memory location to be used for receiving data via a
Multicom option board.
Parameter Type — Selection List
Factory Default — 0
Carrier-Frequency Derate Threshold Frequency
Derate Threshold Frequency
4.0 kHz 5.0 kHz 8.0 kHz
VT130W7U
4600B 412KB – 415KB 4750B – 410KB
PWM Carrier Frequency Receive Address