Toshiba W7 - Manual (Page 110)

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