Delta DVP-20PM

9 Electronic Cam
The actual adjustment steps are: 1. Selecting the sync start and sync end angle; 2. Aligning the
cutter with the start position of the cutter; 3. Executing electronic cam operation; 4. Inspecting the
cutting plane on material
If the cutting plane is bended, conduct fine tuning on the sync start/end angle until the cutting plane
is flat and smooth.
 Pulses can not be equally divided.
If the total pulses of Slave can not be equally divided by the cutters, angle θ
1
and the length of
Master before sync area should be specified respectively in electronic cam setting, so that the
starting and end position of each cutter can be obtained. As the diagram below, parameters
including angle θ
1
, length of Master before sync area, sync start angle and sync end angle should
be specified respectively. In addition, the pulses required for each cutter should also be specified in
electronic cam setting. When the above parameters are ready, run the thick material cutting
electronic cam and conduct fine-tuning on the parameters of each cutter until the best results are
obtained.
180
9
0
0 or 360
270
Sync start angle 200
Sync end angle 250
End position of cutter
θ 1
θ 3
θ 2
Start position of cutter

Example
【Function】
The example is the application of using DTO instruction for creating thick material cutting electronic
cam. The required parameters are listed in the table below. Users assume that the diameter of
material feeding axis is 170(mm), diameter of cutting axis is 240(mm), number of cutters: 4, pulses
per round: 200,000, sync start angle of Slave: θ1=210 degrees, and sync end angle of Slave:
θ2=250 degrees. The cutting length can be calculated according to the parameters above:
170×314÷4=13345. Parameters for thick-material cutting are listed as below.
Parameter Setting value
Electronic cam format 0
Pulses per round of Master 200000
Length per round of Master 53380
Pulses per round of Slave 200000
Length per round of Slave 75360
Sync start angle of Slave:180~360 210
Sync end angle of Slave:180~360 250
Length of cutting process on Master 13345
Number of cutters on Slave 4
Length of Master before sync area -
Angle of Slave between start position and
sync start: angle θ
1
(degree)
-
Number of data points in sync area -
DVP-20PM Application Manual
9-43