LM1510 Servo Drive Label Applicator
US
ER’S MANUAL
Page
45
Made in the U.S.A.
© 2019 LabelMill
11/01/2019 Model LM1510
CALCULATING ENCODER LINES PER INCH (gearing)
There are two basic concepts utilized to interface the product ENCODER to the LabelMill control. One method
utilizes a wheel mounted directly to an encoder. This wheel rests on the belt surface and rotates when the belt
moves. The second method is to mechanically slave the encoder to the conveyor utilizing belts or a chain etc.
Note that lines per revolution are also referred to as counts per revolution. The following is only a small sample of
the many ways there is to couple an encoder to a product conveyor.
WHEEL-MOUNTED
1. Check encoder to determine the number of lines per revolution.
2. Measure diameter of contact wheel.
3. Multiply diameter of wheel by Pi, this will give circumference.
4. Divide encoder lines per revolution by circumference, this will net lines per inch.
5. Enter this number into menu
“ENC LINES/INCH”, note that this number needs to be between 25 & 500.
EXAMPLE
1.
Encoder lines per revolution “1000”.
2.
Contact wheel diameter “6.00”.
3.
6.00 x 3.14 = 18.84”
4. 1000/18.84 = 53.1 (rounding number to the 10
th)
5.
Enter 53.1 into “ENC LINES/INCH”
DIRECT DRIVE
1. Check encoder to determine the number of lines per revolution.
2. Determine the gear ratio of the encoder to the conveyor
3. Measure diameter of conveyor drive wheel.
4. Multiply diameter of wheel by Pi, this will give circumference.
5. Divide encoder lines per revolution by circumference, this will net lines per inch of wheel.
6. Multiply this number by the gear ratio, this will net lines per inch
7. Enter this number into menu
“ENC LINES/INCH”, note that this number needs to be between 25 & 500.
EXAMPLE
1.
Encoder lines per revolution “1000”.
2. Gear ratio is 2 to 1.
3. Conveyor
drive wheel diameter “6.00”.
4.
6.00 x 3.14 = 18.84”
5. 1000/18.84 = 53.079
6. 53.079 x 2 = 106.2 (rounding number to the 10
th)
7.
Enter 106.2 into “ENC LINES/INCH”
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