Siemens SINUMERIK 840D sl, Function Manual

Page: 1615 / 2184

Basic logic functions: Spindles (S1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
5
Brief Description
1
Spindle functions
The primary function of a spindle is to set a tool or workpiece in rotary motion in order to
facilitate machining.
Depending on the type of machine, the spindle must support the following functions in order
to achieve this:
•
Input of a direction of rotation for the spindle (
M3
,
M4
)
•
Input of a spindle speed (
S
....)
•
Spindle stop without orientation (
M5
)
•
Spindle stop with orientation/spindle positioning
(
SPOS
,
M19
, and
SPOSA
)
•
Gear change (
M40
to
M45
)
•
Spindleaxis functionality (spindle becomes rotary axis and vice versa)
•
Thread cutting (
G33
,
G34
,
G35
)
•
Tapping with and without compensating chuck
(G331
,
G332
)
•
Revolutional feedrate (
G95
)
•
Constant cutting rate (
G96
,
G961
,
G97
,
G971
)
•
Programmable spindle speed limits (
G25
,
G26
,
LIMS
)
•
Position encoder assembly on the spindle or on the spindle motor
•
Spindle monitoring for min. and max. speed as well as
max. encoder limit frequency and end point monitoring of spindle
•
Switching the position control (
SPCON
,
SPCOF
,
M70
) on/off
•
Programming of spindle functions:
–
From the part program
– Via synchronized actions
– Via PLC with FC18 or via special spindle interfaces for simple spindle activation