F300

F301

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

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

Break/Make ST

 

 

 

Direct Access Number — F301

Program Protection Parameters Retry/Restart

 

Parameter Type — Check Box

 

 

 

 

Factory Default — Disabled

This parameter Enables/Disables the ability of the drive to start into a spinning

Changeable During Run — Yes

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)

G7 ASD Operation Manual

111

Page 117
Image 117
Toshiba G7 PWM Carrier Frequency, Carrier-Frequency Derate Threshold Frequency, Derate Threshold Frequency KHz, Example