Siemens SINUMERIK 840D sl Function Manual page 134

B3: Distributed systems - 840D sl only
3.3 Examples
Configuration options
● Main spindles or counterspindles must be flexibly assigned to the slide.
● The speed of the main spindle and the counterspindle can be defined independently in
each position.
Exceptions:
During the parts change from front-plane machining in drum V to rear-plane machining in
drum H, the speeds of the main spindle and the counterspindle must be synchronized
(synchronous spindle coupling).
In cases where slide 2 also participates in front-plane machining so as to "support" slide 1,
the main spindle speed also applies to slide 2. Similarly if slide 1 participates in rear-plane
machining, the counterspindle speed also applies to slide 1.
Minor changes in speed
Due to the unavoidable time delays incurred in the processing of actual values, abrupt changes
in speed should be avoided during cross-NCU machining operations. See axis data and
signals.
Configuration for NCU1
Uniform use of channel axis names in the part programs:
S4: Main spindle
S3: Counterspindle
X1: Infeed axis
Z1: Longitudinal axis
S1: Driven tool
Z3: Transfer axis
TRV: Drum V for main spindle
TRH: Drum H for counterspindle
STN: Hydraulic bar feed
Axes highlighted in bold characterize the current channel as home channel for the axis in
conjunction with axis replacement.
Table 3-2 NCUa, position: a, channel: 1, slide: 1
Channel axis name
S4
S3
X1
Z1
134
..._MA‐ $MN_
CHAX_USE
AXCONF_LOGIC_MA‐
D
CHAX_TAB
1 AX1: CT1_SL1
2 AX2: CT3_SL1
3 AX3:
4 AX4:
Container, slot
entry (string)
1 1
NC1_AX1
3 1
NC1_AX2
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Machine axis name
HS1
GS1
X1A
Z1A
Extended Functions