S9: Setpoint Exchange - 840D Sl Only; Brief Description; Startup - Siemens SINUMERIK 840D sl Function Manual
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S9: Setpoint exchange - 840D sl only
10.1
Brief description
Function
The "setpoint exchange" function is used in applications in which the same motor is used to
traverse different machine axes.
Replacing the technology function "setpoint changeover" (TE5)
The "setpoint changeover" function replaces the technology function "setpoint changeover"
(TE5). Migration of the technology function to the functionality of the "setpoint changeover"
function means that you must make changes in the machine data and in the PLC user program:
● Machine data MD63750 is no longer required.
● The meanings of various NC/PLC interface signals have changed.
● Alarms 70451 and 70452 are no longer applicable.
● A setpoint changeover with simulated axes (MD30130 = 0) is no longer supported.
● The known restrictions relating to the technology card function are no longer applicable.
10.2
Startup
The "setpoint exchange" function is required in applications in which a single motor needs to
drive a number of axes/spindles such as, for example, on milling machines with special
millheads. The spindle motor is operated as both a tool drive and a millhead orienting
mechanism.
Figure 10-1
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Example 1: 1 motor encoder, extra encoder for millhead
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