Description:  Why a looping error? The TB-DECO principle is based on the fact that all axes and spindles must be in the same state at a specific moment. At this point, the program has reached the end of the loop and has to start again at a new loop to implement another cycle. A looping error occurs when an axis is not strictly in the same machine position at the start of loop G13 (green flag) as at the end of the loop G113 (red flag). The same applies to the spindles, but here it is the programmed speed, which must be absolutely identical. Without this looping control, an axis could increment its position by the error value at each program loop, thereby ultimately reaching the system limits (software limits). Tip: To overcome this problem and avoid looping errors, apply the following procedure. 1. The moment the warning dialogue box appears, record the error value and name of the axis or spindle affected by the problem. In our example axis X2 has a 5-mm looping error. Then click OK. 2. In the operation line in which the axis in question is located, open the operation preceding G13 (green flag) and select the Single Mode box and validate. Do the same for the operation preceding G113 (red flag). In this example, this affects operations 2 : 1 and 2 : 5  3. Then initiate program generation. As and when the Ç single mode È instructions you have just specified are found, TB-DECO opens a dialogue box. In our example, the following window appears for operation 2 : 1. If the operation contains several ISO code lines, scroll through the code to the end, using the fast forward button  THINK PARTS THINK TORNOS ascl.com |
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