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R911332355 | PSI 6xxx.757
• Output: "Tip dressing necessary" is set as long as any electrode is in state "Tip
dress request".
• Output: "With tip dressing selected" follows the current spot selection. It's set if
a tip dress step counter for the corresponding electrode is programmed and the
stepper is switched on.
• Input: "Tips have been dressed" with selection of the electrode no. via the spot
selection inputs
• Input: "Electrodes have been changed" with selection of the electrode no. via
the spot selection inputs
• If electrode 0 is selected via the spot selection inputs and "Tip dressing
necessary" respectively "Electrodes have been changed" is set, the change
respectively the dressing for all electrodes will be receipt.
As long as "Tip dressing necessary" respectively "Electrodes have been changed"
is set, the state outputs are following the electrode number which is selected via
the spot selection inputs.
7.1.3
Residual Current Protection Device
The Residual Current Protection Device (RCD) is supervised (discrete input I 00
e.l.c.b ok). If an activation of the RCD is observed (I 00 low) an error message
occurs. The fault message is automatically reset when RCD is deactivated (I 00
high). Output O23 "Differential current monitoring tripped" is the negation of input I
00 "e.l.c.b. ok".
7.1.4
Function test without component
If the input "Function test without component" is set:
• All times of a selected program are took over
• Mode KSR is set for this program
• A programmable Current value is set for all weld times
• Stepper is not active
After the sequence, only output "Weld complete" will be set. "Weld OK"
respectively "Weld not OK" will not be set.
7.1.5
Weld complete
The output „Weld Complete" will be set after a sequence as long the input „Start"
is high. The precondition is that the sequence reached at least the weld time. If
the start is reset during a sequence, then the Weld Complete will be set only for
the programmed duration.
A Sequence is not finished before a programmed "automatic reweld" has been
executed.
7.1.6
End of Sequence / Abortion of sequence
After a finished respectively aborted sequence in case of no error the output
"Weld OK" will be set. In case of an error the output "Weld not OK" will be set.
The output will stay until the reset of the errors. The confirmation works via the
inputs "Reset fault" or "Reset fault with WC" or with a new start.
Exception:
- "Function test without component" is set.
- Sequence without current
In these cases none nor the output "Weld OK", neither the output "Weld not OK"
is set.
Bosch Rexroth AG
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