HEIDENHAIN PT 880 - Manual (Page 93)

POSITIP 880 93
I – 8 INFO Scr
een
Math functions (+, –, x, /)
Math functions may be performed separately in the stand-alone
calculator or directly in the field you’re working in. For example, let’s
say we need to enter the radius of a circle pocket, but your print only
shows the diameter, 6.25. Here’s an easy way to figure out the radius:
8 Highlight the RADIUS field for the circle pattern.
8 Using the keypad, enter the value for the diameter, 6.25.
8 Press INFO.
8 Press CALCULATOR.
8 Press the TRIG soft key.
8 Press the / soft key.
8 Press the 2 key.
8 Press the ENT key. The answer, 3.125, will appear in the VALUE
field.
8 Press USE. Value will be shown in the RADIUS field.
Trig functions
As we showed above, when you’re entering data for a milling or
positioning function, your print may not provide you with all of the
information you need. If an unknown value can be expressed as a
trigonometry function, square root or the square of a number,
POSITIP 880 can calculate the dimension for you in the trigonometry
calculator. See Fig. I.69 & Fig. I.70.
Using the trig calculator:
8 While in a numeric field (such as the “TO” field for a line), press the
INFO
soft key, the CALCULATOR soft key, and then press the
STANDARD/TRIG soft key. Press the MORE soft key and the soft key
row in the picture to the right will appear:
8 Press the MORE soft key to toggle between the three soft key rows.
8 Enter a number and then press the soft key for the appropriate
trigonometry math function.
For example, to enter a radius that has a value equal to the square root
of 2, follow this procedure:
8 Highlight the RADIUS field.
8 Press the 2 key.
8 Press INFO.
8 Press CALCULATOR.
8 Press the TRIG soft key.
8 Press the SQR ROOT soft key. A value of 1.4142 will appear.
Fig. I.69 2nd row of calculator soft keys
When you need to enter more than one calculation into a
numeric field, the calculator will perform multiplication and
division before it performs addition and subtraction. If you
were to enter 3 + 1 / 8, POSITIP 880 will divide one by
eight, then add three for an answer of 3.125.
Fig. I.70 Trig function soft keys