Toshiba VF-nC1 - Manual (Page 91)

E6581090
F-27
6
* Using H, the following parameters can be converted.
• A display Display of the monitored current
• V display Display of the monitored voltage
• Free unit Display of the monitored frequency
6.15.2 Changing the unit displayed (A/V/min -1 )
H : Unit selection
H : Frequency units selection
• Function
These parameters are used to change the unit displayed on the display panel.
% ⇔ A (ampere)/V (volt)
Frequency ⇔ Motor speed or load speed
■ Parameter setting
Title Function Adjustment range Default setting
H Unit selection
0: No change
1: %
→ A (ampere)/V (volt)
2: Free unit selection enabled (H)
3: %
→ A (ampere)/V (volt)
Free unit selection enabled (H)
0
H
Frequency units
selection
0.01～200.0 1.00
Note: For the settings in the parameter list, no units can be converted from % into A (ampere)/ V (volt).
Conversion from % into A (ampere)/V (volt) can be made in monitor mode only.
■ An example of setting for changing the unit of volt/current displayed from % to A/V
Set H to  or .
When the VF-nC1-2007P inverter (current rating: 4.0A) is operated under the rated load (full-load).
1) Displayed in percentage 2) Displayed in amperes/volts
[
E  E
[
Output current:
4.0A
DC voltage: 200V
(converted into AC
voltage)
DC voltage:
100%
Output current:
100%
* Conversion from % into A (ampere)/V (volt) can be made in status monitor mode only. For the
settings in the parameter list, no units can be converted from % into A (ampere)/V (volt).
■ An example of setting for displaying the motor or load speed
Set H to  or .
The value obtained by multiplying the operation frequency by the value set with H will be
displayed, as shown below.
Value displayed = Frequency displayed or parameter-set frequency × Value set with H
1) Displaying the rotational speed of the motor
To switch from frequency (default: 60Hz) to speed (rotational speed of the 4P motor operated:
1800 (min
-1 )
 
H= 60×30.00=1800 H=
2) Displaying the speed of the load
To switch from frequency (default: 60Hz) to speed (speed of the conveyer operated: 6m/min -1 )
. 
H= H= 60×0.10=6.0
Note: This parameter is designed to display the value obtained by multiplying the output frequency
of the inverter by an integer. Even if the rotational speed of the motor fluctuates with load
conditions, the output frequency will always be displayed.