PWM Carrier Frequency

Receive Address

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.

Carrier-Frequency Derate Threshold Frequency

 

 

 

 

 

 

 

 

Derate Threshold Frequency

 

 

 

 

 

 

 

 

4.0 kHz

5.0 kHz

8.0 kHz

 

 

 

 

 

 

 

 

VT130W7U

 

 

 

 

 

 

 

 

 

 

4600B

412KB – 415KB

4750B – 410KB

 

 

 

 

 

 

 

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

Parameter Type — Selection List

Enables/Disables the variable PWM frequency.

Factory Default — Disabled

 

 

 

 

Changeable During Run — No

 

 

 

 

Receive Address

 

 

 

Program Communication Settings

S20 Settings

Parameter Type — Selection List

This setting establishes a memory location to be used for receiving data via a

Factory Default — 0

Multicom option board.

 

104

W7 ASD Installation and Operation Manual

Page 110
Image 110
Toshiba W7 manual PWM Carrier Frequency, Carrier-Frequency Derate Threshold Frequency, Ramped PWM Enable, Receive Address