Siemens SINUMERIK 840D Diagnostics Manual page 180

1 Alarms
14040
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
14045
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
1-180
Channel %1 block %2 error in end point of circle
%1 = Channel number
%2 = Block number, label
In circular interpolation, either the circle radii for the initial point and the end point are fur-
ther apart, or the circle center points are further apart, than specified in the machine data.
1. In circle radius programming the starting and end points are identical, thus the circle
position is not determined by starting and end points.
2. Radii: The NCK calculates from the present start point and the other programmed circle
parameters the radii for the start and the end point.
An alarm message is issued if the difference between the circle radii is either
• greater than the value in the MD 21000 CIRCLE_ERROR_CONST (for small radii, if the
programmed radius is smaller than the quotient of the machine data
CIRCLE_ERROR_CONST divided by 21010 CIRCLE_ERROR_FACTOR), or
• greater than the programmed radius multiplied by the MD CIRCLE_ERROR_FACTOR
(for large radii, if the programmed radius is greater than the quotient of the machine data
CIRCLE_ERROR_CONST divided by CIRCLE_ERROR_FACTOR).
3. Center points: A new circle center is calculated using the circle radius at the starting
position. It lies on the mid-perpendicular positioned on the connecting straight line from
the starting point to the end point of the circle. The angle in the radian measure between
both straight lines from the starting point to the center calculated/programmed as such
must be lower than the root of 0.001 (corresponding to approx. 1.8 degrees).
- Correction block is reorganized.
- Interface signals are set.
- Alarm display.
Please inform the authorized personnel/service department. Check MD 21000
CIRCLE_ERROR_CONST and 21010 CIRCLE_ERROR_FACTOR. If the values are
within reasonable limits, the circle end point or the circle mid-point of the part program
block must be programmed with greater accuracy.
Clear alarm with NC START or RESET key and continue the program.
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.
- 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.
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04