Magnitude Of Frequency Change Setting (Pr. 295) - Mitsubishi Electric FR-D720S SC EC Instruction Manual

Setting for the parameter unit and operation panel
6.21.4

Magnitude of frequency change setting (Pr. 295)

When setting the set frequency with the digital dial, frequency changes in 0.01Hz increments in
the initial status. Setting this parameter increases the magnitude of frequency which changes
according to the rotated amount of the digital dial, improving operability.
Pr. No. Name
Magnitude of fre-
295
quency change setting
The above parameter can be set when Pr. 160 = 0.
The above parameter allows its setting to be changed during operation in any operation mode
even if "0" (initial value) is set in Pr. 77 "Parameter write selection".
Example
When "1.00Hz" is set in Pr. 295, one click (one dial gauge) of the setting dial changes the
frequency inincrements of 1.00Hz -> 2.00Hz -> 3.00Hz.
One rotation of the setting dial equals to 24 clicks (24 dial gauses).
Fig. 6-146: Magnitude when parameter 295 is set to "1.00"
NOTES When machine speed display is selected with Pr. 37, the minimum increments of the magni-
tude of change is determined by Pr.295 as well. Note that the setting value may differ as
speed setting changes the set machine speed and converts it to the speed dislay again.
When the set frequency (speed) is 100 or more, frequency is displayed in 0.1 increments.
Therefore, the minimum varying width is 0.1 even when Pr. 295 < 0.1.
When the machine speed setting is 1000 or more, frequency is displayed in 1 increments.
Therefore, the minimum varying width is 1 even when Pr. 295 < 1.
For Pr. 295, unit is not displayed.
This parameter is valid only in the set frequency mode. When other frequency-related para-
meters are set, it is not activated.
When 10 is set, frequency setting changes in 10Hz increments. Note the excess speed (in
potentiometer mode).
6 - 284
Initial Setting
Description
Value Range
0 Function invalid
0.01
The minimum varying width when the
0 0.1
set frequency is changed by the set-
1
ting dial can be set.
10
1 click
Parameters referred to
2 clicks
Parameter
Refer to
Section
—
3 clicks
I001844E