Operative mode
Welding seam tracking
36
Item No.: 099-008225-EWM01
5.13 Welding
seam
tracking
A traditional task for robot welding systems is track correction for the weld seam during the process,
which is required due to component tolerances.
The actual process values supplied in the system are normally updated every 30ms.
A higher data rate is required for reliable seam tracking. This is supported by BUSINTX11 with a fast,
optional
actual value recording device for welding voltage and welding current, which needs to be
purchased separately.
5.14 Welding
simulation
The simulation is normally used in setup mode by positioning devices. The process signals “I > 0”, “Ready
for welding”, “Process active” and “Main current signal” are simulated. All signals are reproduced with the
exact time-based course of the process chain. This means that the simulation is also suitable for
determining production cycle times.
The function can only be activated via the relevant release signals when the system is at a standstill (no
welding operation).
The simulation is released by activating the “Welding simulation” actuation signal.
No actual process values are simulated.
With TETRIX systems the I>0 signal is also simulated for the auxiliary process.
5.15 Process
fast
shut-down
In some circumstances, an immediate shut-down of the process is desirable, which cannot be
implemented in the non-latched special operating mode, for example, with the program sequence
programmed for that mode, or by simply removing the start signal. The “Robot ready” actuation signal is
used to trigger a fast process shut-down via the software. The signal must always be set before the start
signal (otherwise there is no start). If the signal is shut down in the welding process, the process is ended
immediately with the wire burn-back of the wire electrode and the “Fast stop” error is issued on the field
bus. Before re-starting welding, “Robot ready” needs to be set first and then the error acknowledged.
5.16 Process safety shut-down
The BUSINTX11 is equipped with monitoring specific to the field bus, which is used to determine the
status of the module on the field bus. If the field bus communication is interrupted during the continuous
welding process, a safety shut-down of the welding process is carried out following a response time of
approx. 2s.
The user-defined output and the monitoring output are also reset in the process.
The welding process can be continued after restoring the field bus communication.
