Functional Descriptions; Program Start And Spot Selection; New Spot Selection; Program Start - Bosch Rexroth PRC 7 00L Serie Typspezifische Anleitung

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No. PRC7000 outputs
128..142
Weld time default Bit 00..14 (in
1 ms steps)
143
Weld time default Bit 15
"32768" (sign)
144..159
Staus code bit 00..15
Description
Welding time parameterized in the selected welding job.
Sign of the welding time parameterized in the selected welding
job.
Output of the current PRC7000 error code.
If the error code is > 65535, 65535 is output
8

Functional descriptions

8.1

Program start and spot selection

The program start is divided into two parts:

• New spot selection

• Program start

Both parts work with a handshake.
8.1.1 New spot selection
The robot first selects a new spot number at the relevant control inputs. It then
sets the "New spot selection" input.
This input prompts the controller to read out the new spot number, prepare the
associated welding program and set the program-dependent and electrode-
dependent controller outputs accordingly.
If the controller was able to find the spot number in the spot table or a program
was selected directly (0..255), the weld controller sets output "Data for spot
selection valid" as soon as the outputs dependent on the spot selection have
been updated.
If no valid spot number is present, the last valid spot selection is retained.
When the robot detects the "Data for spot selection valid" output, it can evaluate
the relevant outputs of the weld controller. In addition, it must remove the "new
spot selection" input.
In response, the weld timer will remove the "Data for spot selection valid" output
again.
8.1.2 Program start
The actual program start is triggered by the robot via the "start" input. At the end
of the sequence, the controller sets the following outputs:
• "end of sequence", if the sequence was OK or ended with a welding warning.
• "welding fault", if the sequence was aborted or ended with a welding error.
The "timer ready" output is taken away if there is a welding error or a general
error.
R911407348 | PRC 7x00-Lx/Wx-1300