Siemens SINUMERIK 840D sl Function Manual page 582
Hide thumbs
Also See for SINUMERIK 840D sl:
- Function manual (1726 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
Table of Contents
Advertisement
Detailed description
2.3 Channel
Special cases
• Errors during mode change
• Mode change disable
• Mode change from MDA to JOG
2.3
Channel
Assignment of programs
Part programs are assigned to channels. Programs of different channels are largely
independent of each other.
Channel properties
A channel constitutes an "NC" in which one part program can be executed at a time.
Machine axes, geometry axes and positioning axes are assigned to the channels according
to the machine configuration and the current program status (AXIS CHANGE, GEO AXIS
CHANGE, SETMS).
The system assigns each channel its own path interpolator with associated programming.
Each channel can run its own machining program, which is controlled from the PLC.
The following channelspecific functions make it possible for the channels to process part
programs independently:
• Each channel has its own NC Start, NC Stop, RESET.
• One feedrate override and one rapid traverse override per channel.
• Dedicated interpreter for each channel.
• Dedicated path interpolator for each channel, which calculates the path points such that
• Selection and deselection of tool cutting edges and their length and radius
24
If a mode change request is rejected by the system, the error message "Operating mode
cannot be changed until after NC Stop" is output. This error message can be cleared
without changing the channel status.
By means of the interface signal:
DB11, ... D0.4 (Mode change disable)
one can prevent mode changes.
This suppresses the mode change request.
The user must configure a message to the operator indicating that mode change is
disabled. No signal is set by the system.
If all channels of the mode group are in RESET state after a mode change from MDA to
JOG, the NC switches from JOG to AUTO. In this state, part program commands START
or INIT can be executed.
If a channel of the mode group is no longer in Reset state after a mode change, the part
program command START is rejected and Alarm 16952 is issued.
all the machining axes of the channel are controlled simultaneously from path axes.
compensations for a tool in a specific channel.
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
- Quick Links:
- Alarm Behavior
- Programming
- Machine Data
Hide quick links:
Advertisement
Chapters
Table of Contents
