, , ,   

6.29Control panel parameters

6.29.1Prohibiting the change of parameter settings

 Prohibition of parameter setting

Function

This parameter is used to make a setting to prohibit or allow the change of parameter settings.

■Setting method

Allowed・・・・・・No parameters are write-protected. (Default setting)

Prohibited・・・・All parameters except for  are write-protected.

Parameter

setting

 

 

 

Title

Function

Adjustment range

Default setting

 



Prohibition of parameter setting

Allowed

 

Prohibited

 

 

 

 

■Canceling method

 only is designed so that its setting can be changed anytime even when it is set at .

■To prohibit all operation, including key operation, use the parameter (Panel operation prohibition).

6.29.2 Changing the units of display

 Current / voltage display mode

Function

This parameter is used to change the units of display of current and voltage. Display in % <=> Display in A (ampere) or V (volt)

Current 100% = Inverter’s rated current 200V-class voltage 100% = 200Vac 400V-class voltage 100% = 400Vac

■Example of setting

When the VFA7-2037PL (rated current: 16.6A) is operated under the rated 100% load :

1) Display in [%]

2) Display in [A] or [V]





Output current

: 100%

DC voltage

: 100%





Output current

: 16.6A

Input voltage

: 200V

Title

Function

Adjustment range

Default setting



Current / voltage display mode

: [%]

: [A] or [V]

With , you can convert the units pertaining to the following parameters: Display in [A]: Current monitor

Motor overload protection level #1,#2,#3,#4 DC injection braking current

Stall prevention level

Display in [V]: Voltage monitor

V/f 5-point setting, , , , 

NoteBase frequency voltage is always displayed in voltage unit.

F-66

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Toshiba VF-A7 Control panel parameters, Prohibiting the change of parameter settings, Changing the units of display