Function
−28−
Displayed digit number when setting the speed reduction ratio or speed increasing ratio
The number of signicant gures for the integer part is changed if the speed reduction ratio or speed increasing ratio is
set, so the digit number displayed on the panel will also be changed.
Setting value of the speed reduction
ratio and speed increasing ratio
Display digit on the panel
1.00 to 9.99 0 to 9999
10.00 to 99.99 0.0 to 999.9
100.0 to 999.9 0.00 to 99.99
1000 or more 0.000 to 9.999
How to calculate the speed reduction ratio when displaying the conveyor transfer speed
To display the conveyor transfer speed, calculate the conveyor speed reduction ratio using the formula below, and set to
the "speed reduction ratio" parameter.
≅ 79.6Conveyor speed reduction ratio = =
25
0.1 [m] ×
From the conversion formula, the conveyor speed reduction ratio is calculated as 79.6 in this example.
If the speed reduction ratio is 79.6 and the rotation speed of the motor is 1300 r/min,
the conveyor transfer speed is converted as follows:
≅
16.3
1300
79.6
Conveyor transfer speed [m/min] = Accordingly, "16.3" is shown on the display.
transfer speed
Pulley diameter
Conveyor speed
reduction ratio
=
1
Feed rate per motor revolution
Gearhead gear ratio
Pulley diameter [m] ×
Conveyor transfer speed [m/min] =
Rotation speed of motor output shaft [r/min]
Conveyor speed reduction ratio
When the calculated conveyor speed reduction ratio is used,
the conveyor transfer speed is converted as follows:
Example: The pulley diameter is 0.1 m and gear ratio of the gear head is 25
=
Gearhead gear ratio
Pulley diameter [m] ×
Limits the setting range of the rotation speed
The setting range of the rotation speed is set to 0 to 1600 r/min at the time of shipment. This setting range can be
changed to limit.
Speed upper limit
Set the upper limit value of the rotation speed in the "speed upper limit" of the "speed upper and lower limit" parameter.
The rotation speed exceeding the "speed upper limit" cannot be set in the rotation speed of the operation data. The
operation data, which is already set the rotation speed exceeding the “speed upper limit,” will be overwritten by the
rotation speed set in the “speed upper limit.”
Speed lower limit
Set the lower limit value of the rotation speed in the "speed lower limit" of the "speed upper and lower limit" parameter.
The rotation speed below the "speed lower limit" cannot be set in the rotation speed of the operation data. The
operation data, which is already set the rotation speed below the “speed lower limit,” will be overwritten by the rotation
speed set in the “speed lower limit.”
Setting range of the rotation speed
[r/min]
[r/min]
[Example]
When limiting the speed range
by setting to the speed upper
limit to 1200 r/min and the
speed lower limit to 200 r/min
0
1600
200 1200
Factory setting (Initial value)
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