01.93 2 NC Machine Data
2.11 Input units
– A rotary axis is used.
p= 18000 pulses per revolution
f= 5
b= 1/2 10
-3
degrees
MD 368* =
360 degrees
b
MD 364* = p · f · 4 = 18000 · 5 · 4 = 360000
=
360 degrees
1/2 10
-3
degrees
= 720000
Since the values exceed 65000, both values must be divided by a common factor (e.g.
factor = 100).
MD 368* = 7200 MD 364* = 3600
• MD 4590 Number of pulses spindle encoder
Number of pulses of the spindle encoder without multiplication. The value affects the
maximum possible speed of the spindle.
Formula for the maximum speed:
n
max =
60 · n
limit
N
n
limit
= limit frequency of the encoder in Hz
N = number of pulses per spindle revolution
Example for n
limit
= 1 MHz
Nn
max
[
1/min
]
1024 (58000)
16000 = max
2500 (24000)
16000 = max
5000 12000
9000 6666
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