Toshiba VF-AS1 instruction manual Cooling fan control selection

E6581301

• Function

Trips the inverter or issues an alarm if the total time for which torque is above the level set with

￿￿￿￿/￿￿￿￿ reaches the time set with ￿￿￿￿. Trip information is displayed as “￿￿.”

￿￿￿￿=￿ (No trip)	··············	No tripping (FL is not active).
￿￿￿￿=￿ (Tripping)	············	The inverter will trip (the failure signal FL will be activated) if a torque larger than

￿￿￿￿(during power running) or ￿￿￿￿ (during regeneration) passes for a time longer than the time set with ￿￿￿￿.

Title	Function	Adjustment range	Default setting
￿￿￿￿￿	Overtorque trip selection	￿:No trip, ￿:Trip	￿￿
￿￿￿￿￿	Overtorque detection level during power running	￿~￿￿￿ %	￿￿￿
￿￿￿￿￿	Overtorque detection level during regenerative braking	￿~￿￿￿ %	￿￿￿
￿￿￿￿￿	Overtorque detection time	￿￿￿~￿￿￿￿ sec.	￿￿￿
￿￿￿￿￿	Overtorque detection hysteresis	￿~￿￿￿ %	￿￿￿

Note:Using the output terminal function selection parameter, the inverter can be set so that it outputs overtorque detection signals regardless of the setting of ￿￿￿￿. ￿ Refer to Section 7.2.2.

<Example of operation>

Output terminal function: 28 Overtorque detection

￿￿￿￿=￿ (No trip)

Ex.) When outputting overtorque detection signals through output terminal OUT1

Title	Function	Adjustment range	Example of
			setting
￿￿￿￿￿	Output terminal function selection 1(OUT1)	￿~￿￿￿	￿￿￿

Note:To put out signals to the terminal OUT2, select the parameter ￿￿￿￿.

Overtorque		OFF!		ON!
signal output
			￿
	less than
	￿￿￿￿!	￿￿￿￿￿

6

OFF!

￿￿￿￿￿

￿￿￿￿ - ￿￿￿￿

Torque [%]

Time [sec]!

When ￿￿￿￿=￿ (tripping), the inverter will trip if overtorque lasts for the period of time set with ￿￿￿￿. In such a case, the overtorque signal remains ON.

6.33.11 Cooling fan control selection

￿￿￿￿

: Cooling fan control selection

•Function

With this parameter, you can set the condition of cooling fan so that it operates only when the inverter requires cooling, and thus it can be used for a longer period.

￿￿￿￿=￿: Automatic control of cooling fan, enabled. Operates only when the inverter is in operation.

￿￿￿￿=￿: Automatic control of cooling fan, disabled. The cooling fan always operates when the inverter is

energized.

F-63