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Constraints on the
entry of a formula
Temperature
compensation
Permanent
temperature
compensation
December 2001
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Maximum length of a formula: 31 characters
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Maximum of 16 variables per formula
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Mathematical operations in lowercase letters, variables in uppercase letters
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The following operations are permitted in a formula:
• Addition +
• Subtraction –
• Multiplication *
• Division /
• Logarithm to the base of 10log10
• Exponent ^
• Parentheses ( )
• Sine sin
• Cosine cos
• Tangent tan
• Arc sine asin
• Arc cosine acos
• Arc tangent atan
• Square root sqrt
An erroneous syntax of the formula is not recognized until the NC program is
started. The error message MP75xx not defined appears.
If the "tilted working plane" function is active, the position of the tilting
element is calculated for each positioning movement.
The variables are monitored every second, and if there are any changes,
MP7530.x is recalculated.
Note
Remember that the changes are compensated with a certain delay.
Positioning blocks that have already been calculated can no longer be
considered.
The permanent temperature compensation with the formula from the
TEMPCOMP column is only effective if the description table is active. The
algebraic sign of the compensation must match that of the axis error
compensation in Words W576 to W584.
The variables are monitored every second and changes are reported to the
position controller. The position controller uses the formula in the TEMPCOMP
column and the current angle of the rotary axes to calculate the compensation
values.
With Module 9040 or 9041, transfer value 8, the value of the temperature
compensation can be determined.
The formula is only entered for the transformations where compensation is to
occur.
Tilting Axes
6 – 75
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