Siemens SINUMERIK 840C Installation Instructions Manual page 713

09.95
n = speed setpoint in [VELO], [0.01%] or [
set
n
set
Example:
Overdimensioned drive for a rotary axis (analog)
Input resolution
Position control resolution
Motor speed
Gear (axis motor)
Max. velocity
Set max. velocity
for axis
The following machine data result
MD 256*, scaling factor maximum velocity:
MD 260*, scaling factor maximum speed setpoint:
MD 280*, maximum velocity (progr. rapid traverse G00):
MD 268*, maximum speed setpoint:
MD 268*, MD 260* · 0.8192 + 5% =
MD 264*, threshold for drive errors:
MD 264*, MD 268* + 20% =
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SINUMERIK 840C (IA)
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20%
5%
:
:
:
:
:
:
Caution: The low speed setpoint has an adverse effect on the control
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mm
/ ]
min
MD 264* Threshold for drive error
MD 268* Max. speed setpoint
MD 280* Max. velocity
(progr. rapid traverse G00)
MD 292* Conv. rapid traverse
MD 288* Conv. feedrate
-3
IS = 10 degrees
-3
MS = 10 degrees
rev
n = 3000 /
min
r = 1 :10
V = n · r · 360 [ degrees /
max min
degrees
= 108000 /
min
degrees
= 54000 / = 150
min
4300
5160
behaviour of the axis.
6FC5197- AA50
10 Axis and Spindle Installation
10.4.1 Drive optimization
t
[sec]
]
rev
= 300 /
min
rev
/
min
54000 [ degrees / ]
min
5000 [mV] [0.01%]
-3 degr.
54000 [1000 · 10 /
min
[VELO] or 5250 [0.01%]
[VELO] or 6300 [0.01%]
10–23
]