Low Current Trip Threshold

 

 

 

Low Output Disable Boost Level

 

 

 

Low Current Trip Threshold

 

 

Program

Protection Settings Low Current Trip Threshold

Parameter Type — Numerical

 

 

 

 

 

Factory Default — 0.00

The Low-current Trip parameter enables this function. The Low Current

 

Trip Threshold establishes the low-current threshold value. The threshold

Changeable During Run — Yes

value is entered as a percentage of the maximum rating of the ASD.

 

 

 

 

 

 

 

 

Minimum — 0.00

 

 

 

 

 

 

 

Maximum — 100.00

 

 

 

 

 

 

 

Units — A

Low Current Trip Threshold Time

 

Program

Protection Settings

Low Current Time

Parameter Type — Numerical

 

 

 

 

 

Factory Default — 0

When the low-current monitor is enabled, this function sets the time that the

 

low-current condition must exist to cause a trip.

Changeable During Run — Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum — 0

 

 

 

 

 

 

 

Maximum — 255

 

 

 

 

 

 

 

Units — Seconds

 

 

 

 

 

Lower Deviation Limit

 

 

 

 

Program

Feedback Settings

Lower Deviation Limit

Parameter Type — Numerical

 

 

 

 

 

Factory Default — 50.00

This parameter determines the maximum amount that the feedback may

 

decrease the output signal.

 

 

 

Changeable During Run — Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum — 0.00

 

 

 

 

 

 

 

Maximum — 50.00

 

 

 

 

 

 

 

Units — %

 

 

 

 

 

Lower Limit Frequency

 

 

 

 

Program

Fundamental Parameters Fundamental #1 Lower

Parameter Type — Numerical

 

 

 

 

 

⇒⇒

 

Limit Frequency

 

 

 

Factory Default — 0.0

This parameter sets the lowest frequency that the ASD will accept as a

Changeable During Run — Yes

frequency command or frequency setpoint. The ASD will output frequencies

 

lower than the Lower Limit Frequency when accelerating to the lower limit or

Minimum — 0.0

decelerating to a stop. Frequencies below the Lower Limit may also be output

Maximum — Upper Limit

when operating in the PID Control mode, Torque Control mode, or the

 

Vector Control modes (sensorless or feedback).

Units — Hz

Low Output Disable Boost Level

 

Program

 

PID Setup Low-output Disable Boost Level

Parameter Type — Numerical

The Low Output Disable feature adds the user-input frequency value to the

Factory Default — 0.0

 

commanded frequency (Hz).

 

 

 

Changeable During Run — Yes

W7 ASD Installation

and Operation

 

 

 

 

 

 

Minimum — 0.0

 

 

 

Maximum — Max. Freq.

 

 

 

Units — Hz

Manual

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Image 87
Toshiba W7 manual Low Current Trip Threshold Time, Lower Deviation Limit, Lower Limit Frequency