3.This can be improved by installing 0.1µ~0.5µF - 1000V film capacitor to the input/output terminals of

/2

/2

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Key operated LED display OperationPress the ENTER key to enable the user parameter automatic editfunction.

or

Searches for parameters that are different in value from the standarddefault setting and displays those parameters. Press the ENTER keyor the key to change the parameter displayed. (Pressing the keymoves the search in the reverse direction).

Press the ENTER key to display the set value.

Press the key and key to change set value.

Press the ENTER key to save the changed value. The parametername and the programmed value will flash on and off alternately.After the change has been saved, � � is displayed.Use the same steps as those given above to display parameters thatyou want to search for or change setting with the key and key.

When . appears again, the search is ended.

A search can be canceled by pressing the MODE key. Press theMODE key once while the search is underway to return to the displayof parameter setting mode.After that you can press the MODE key to return to the statusmonitor mode or the standard monitor mode (display of operationfrequency).

If there is anything you do not understand during this operation, press the key several times tostart over from the step of display.

4.1.4 Searching for a history of changes, using the historyfunction ( )

History function ( ):Automatically searches for 5 latest parameters that are programmed with values different from thestandard default setting and displays them in the . Parameter setting can also be changedwithin this group .

Notes on operationIf no history information is stored, this parameter is skipped and the next parameter � � is dis-played.

and are added respectively to th efirst and last parameters in a history of changes.

MODE

MODE

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2) Preset-speed frequency settingSet the speed (frequency) of the number of steps necessary.

Setting from speed 1 to speed 7Title Funtion Adjustment range Setting value

Preset-speed operation frequencies1-7 (Hz) 0.0

Setting from speed 8 to speed 15Title Function Adjustment range Setting value

Preset-speed operation frequencies8-15 (Hz) 0.0

Examples of preset-speed contact input signals: Slide switch SW1 set to sink logicO: ON -: OFF (Speed commands other than preset-speed commands are valid when all are OFF)

Preset-speedTerminal

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15S1-CC - - - - - - -S2-CC - - - - - - -S3-CC - - - - - - -

RES-CC - - - - - - -

Terminal functions are as follows.Terminal S1............. Input terminal function selection 4 (S1)

= (Preset-speed command 1: SS1)Terminal S2............. Input terminal function selection 5 (S2)

= (Preset-speed command 2: SS2)Terminal S3............. Input terminal function selection 6 (S3)

= (Preset-speed command 3: SS3)Terminal RST .......... Input terminal function selection 3 (RES)

= (Preset-speed command 5: SS4)

SS4 is not allocated to standard default setting. Use the input terminal function selection to allocate SS4an idle terminal. In the above example the RES terminal is used for SS4.

CC

S1

S2

RES

S3

- - - --

--

(

values ( ).

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3) Minimum resistances of connectable braking resistorsThe minimum allowable resistance values of the externally connectable braking resistors are listed in thetable below.Do not connect braking resistors with smaller resultant resistances than the listed minimum allowableresistance values.

[200V Class] [400V Class]Inverter ratedoutput capacity

(kW)Resistance of

standard optionMinimum allowable

resistanceResistance of

standard optionMinimum allowable

resistance0.2 200 55 - -0.4 200 55 200 114

0.55 200 55 - -0.75 200 55 200 1141.5 75 44 200 672.2 75 33 200 673.7 40 16 160 545.5 20 12 80 437.5 15 12 60 2811 10 5 40 1615 7.5 5 30 16

6.13.5 Avoiding overvoltage tripping : Overvoltage limit operation

: Overvoltage stall protection level

FunctionThese parameters are used to keep the output frequency constant or increase it to prevent overvolt-age tripping in case the voltage in the DC section rises during deceleration or varying speed opera-tion. The deceleration time during overvoltage limit operation may increase above the designatedtime.

Overvoltage limit operation level

DC Voltage

OutputFrequency

Over-voltage stall protection level

)

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6.19.4 Emergency stop: Emergency stop

: Emergency DC braking time

FunctionThese parameters allow you to specify how to stop operation using an external control device whenan external trip occurs. When operation is stopped, the trip and the FL relay also are activated.When setting to (emergency DC braking), set also (DC braking rate) and

(emergency braking time)

1) External trip stop via terminalsThe external trip stop function can be executed via the a-contact. Proceed as follows to assign anexternal stopping terminal and select the stopping method:

[Parameter setting]Title Function Adjustment range Default setting

Emergency stop selection0: Coast stop1: Slowdown stop2: Emergency DC braking

0

Emergency DC braking time 0.0 ~ 20.0 [sec] 1.0

DC braking current 0-100 (%) 50

(Example of terminal assignment): Assigning the trip stop function to the RES terminalTitle Function Adjustment range Setting

Input terminal selection 3 (RES) 0-64 11 (External tripstop)

Note 1) Emergency stopping via the specified terminal is possible, even during panel operation.Note 2) If DC braking is not needed to bring the motor to a stop under normal conditions, although is

set to 2 (emergency DC braking), set the DC braking starting frequency ( ) at 0.0 Hz.

2) Emergency stopping from the operation panelEmergency stopping from the operation panel is possibleby pressing the STOP key on the panel twice while the inverter is not in the panel control mode.

(1) Press the STOP key............................. " " wi ll blink.(2) Press the STOP key once again .......... Operation will come to a trip stop in accordance with the setting

of the parameter.After this, " " will be displayed and a failure detection signalgenerated (FL relay deactivated).

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6.21 Operation panel parameter

6.21.1 Prohibition of key operations and parameter settings : Prohibition of change of parameter setting

: Prohibition of panel operation (FC)

: Prohibition of panel operation (RUN/STOP keys)

: Prohibition of panel emergency stop operation

: Prohibition of panel reset operation

: Prohibition of change of / during operation

FunctionThese parameters allow you to prohibit the operation of the RUN and STOP keys on the operationpanel and the change of parameters. Using these parameters, you can also prohibit various keyoperations.

[Parameter setting]Title Function Adjustment range Default setting

Prohibition of change of parametersetting 0: Permitted, 1: Prohibited 0

Panel operation prohibition (FC) 0: Permitted, 1: Prohibited 0Prohibition of panel operation(RUN/STOP keys) 0: Permitted, 1: Prohibited 0

Prohibition of panel emergency stopoperation 0: Permitted, 1: Prohibited 0

Prohibition of panel reset operation 0: Permitted, 1: Prohibited 0Prohibition of change of

/ during operation 0: Permitted, 1: Prohibited 1

Resetting methodOnly the parameter is designed so that its setting can be modified even if 1 (prohibited) is selected.

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6.22 Communication function (Common serial)

6.22.1 Setting of common function : Data transfer speed : Parity : Inverter number : Communication error trip time : Communication waiting time : Inter-drive communication : Point # 1 setting : Point # 1 frequency : Point # 2 setting

: Point # 2 frequency : Selection of communication protocol : Block write data 1 : Block write data 2 : Block read data 1 : Block read data 2 : Block read data 3 : Block read data 4 : Block read data 5 : Free notes

sistance values ( ).

-

-

-

--

--

pedance of 1 - 10k ), 0 - 10Vdc (input impedance: VIA/VIB=30k , 4 - 20mAdc (Input impedance: 250 ).

cos =0.4)

and