X84; Displayed Digit Number When Setting The Speed Reduction Ratio Or Speed Increasing Ratio; X84; How To Calculate The Speed Reduction Ratio When Displaying The Conveyor Transfer Speed; X84; Limiting The Setting Range Of The Rotation Speed - Oriental motor DSC Series Operating Manual

Function
„ Displayed digit number when setting the speed reduction ratio or speed
increasing ratio
Since the number of significant figures 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
„ 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.
Conveyor speed
reduction ratio
When the calculated conveyor speed reduction ratio is used,
the conveyor transfer speed is converted as follows:
Conveyor transfer speed [m/min] =
Example: The pulley diameter is 0.1 m and gear ratio of the gear head is 25
Conveyor speed reduction ratio =
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:
Conveyor transfer speed [m/min] =

„ 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
Factory setting (Initial value)
[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
−30−
1.00 to 9.99
10.00 to 99.99
100.0 to 999.9
1000 or more
1
=
Feed rate per motor revolution
Rotation speed of motor output shaft [r/min]
Conveyor speed reduction ratio
Gearhead gear ratio
Pulley diameter [m] ×
1300
≅
16.3
79.6
0
200
Display digit on the panel
0 to 9999
0.0 to 999.9
0.00 to 99.99
0.000 to 9.999
Gearhead gear ratio
=
Pulley diameter [m] ×
25
≅
= 79.6
0.1 [m] ×
Accordingly, "16.3" is shown on the display.
[r/min]
1600
[r/min]
1200
Conveyor
Pulley diameter
transfer speed