Derate Threshold Frequency - Toshiba G7 Operation Manual

F300
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.
Carrier-Frequency Derate Threshold Frequency

Derate Threshold Frequency

2.2 kHz 5.0 kHz
2750B – 215KB 2500B
2750B – 215KB 2600B
415KB – 435KB 4400B
415KB – 435KB 412KB
615KB – 635KB 410KB
412KB
610KB
610KB
612KB
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
Settings:
Box checked (Enabled)
Box not checked (Disabled)
G7 ASD Operation Manual
6.0 kHz
V T 1 3 0 G 7 U
6160B
6400B
6400B
F312 and F313.
Direct Access Number — F300
Parameter Type — Numerical
Factory Default — 2.200
Changeable During Run — No
Minimum — 0.500
Maximum — (ASD-dependent)
Units — kHz
Example
8.0 kHz
2010B – 2600B
2400B
4015B – 4330B
4500B – 410KB
4600B – 4750B
6015B – 6120B
6220B – 6330B
6220B – 6330B
6500B – 6750B
6500B – 6750B
Direct Access Number — F301
Parameter Type — Check Box
Factory Default — Disabled
Changeable During Run — Yes
F301
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