ECET-262 [LABORATORY 12C]

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P a g e | 10 of 25 Graphically: Now notice that the Master which is X will be provided a fixed velocity e.g. - 60 degrees per seconds. This would mean that the master would take 3 seconds to reach 180 degrees thus the slave would turn 3600 degrees (10 turns) after 3 seconds. Thus for each motion cycle this CAM profile would be repeated. Procedures to Write a CAM Motion Program: 1. Define a Logical Encoder: Go to EPAS4 Start New Project Go to Resources Tab Go to PLC Configuration Append the MC-4 Sub-elements Append Log. Encoder:
P a g e | 11 of 25 2. Configure Logical Encoder: Go Online Go to PLC Configuration Go to Log. Encoder Velocity Generator Set the Offset Velocity to 0: Note: Recall that as told previously after setting the offset velocity to 0 we will ensure that we will use SetMasterEncoder function block to assign an axis to the logical encoder. 3. Assign an Axis to the Logical Encoder in the Program: In the ladder program we can assign an actual axis to the logical encoder as shown below: 4. Define MultiCamStruct Structure Variables: Create an Action File: The action file contains all the MultiCamStruct type CAM structures. Thus all the CAM structures along with their CAM points will be defined in this Action file. Select the Ladder Program (PLC_PRG) Right Click Add Action:
Page 1 and 2: ECET-262 FALL 2010 [LABORATORY 12C]
Page 3 and 4: P a g e | 3 of 25 PacDrive Automati
Page 5 and 6: P a g e | 5 of 25 Toolkit EPAS-4 is
Page 7 and 8: P a g e | 7 of 25 Creating a CAM pr
Page 9: P a g e | 9 of 25 Example : MultiCa
Page 13 and 14: P a g e | 13 of 25 6. Define CAM_Up
Page 15 and 16: P a g e | 15 of 25 (profiles) that
Page 17 and 18: P a g e | 17 of 25 InstantNewCam
Page 19 and 20: P a g e | 19 of 25 Sample CAM Motio
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Page 23: P a g e | 23 of 25 CAM Motion Progr

ECET-262 [LABORATORY 12C]

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