Channel %1 block %2 error in tangential circle programming


%1 = Channel number

%2 = Block number, label


The alarm may have the following causes:

The tangent direction is not defined for tangent circle, e.g. because no other travel block has been programmed before the current block. No circle can be formed from start and end point as well as tangent direction because - seen from the start point - the end point is located in the opposite direction to that indicated by the tangent.

It is not possible to form a tangent circle since the tangent is located perpendicular to the active plane.

In the special case in which the tangent circle changes to a straight line, several complete circular revolutions were programmed with TURN.


-    Correction block is reorganized.

-    Local alarm reaction.


Program Continuation:

-    Interface signals are set.

-    Alarm display.

-    NC Stop on alarm at block end.

Modify part program.

Clear alarm with NC START or RESET key and continue the program.

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