Function
−30−
Displayed digit number when setting the speed reduction ratio or speed
increasing ratio
Since the number of signicant gures for the integer part is changed if the speed reduction ratio or speed increasing
ratio is set, the digit number displayed on the panel will also be changed.
Setting value for 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 by using the formula below and
set to the "speed reduction ratio" parameter.
≅ 79.6Conveyor speed reduction ratio = =
25
0.1 [m] × 䃟
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 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] × 䃟
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] × 䃟
Limiting 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. If the
rotation speed exceeding the "speed upper limit" is already set in the operation data, the rotation speed set in the
"speed upper limit" will be overwritten.
•
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 lower than the "speed lower limit" cannot be set in the rotation speed of the operation data. If the
rotation speed lower than the "speed lower limit" is already set in the operation data, the rotation speed set in the
"speed lower limit" will be overwritten.
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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