Bosch PST 6101.321 Technical Information page 69

Electrical connection
<Reset "Electrodes have been dressed">
7-26
PST 6101.321 / PSI 6101.321
Spot welds are programmed in dressing operation, which require a dressing of the elec-
trodes in one or several operating cycles. When the Stepper function is active (Program-
ming - Welding Parameters - Stepper) the signal <Tipdress request> signals that
dressing is required. This signal will be reset and turned off as soon as a <Reset "Elec-
trodes have been dressed"> signal reports the completed dressing operation.
NOTE
If program number 0 (= electrode number 0) is selected with the Program selection si-
gnals and a Tip dressed signal becomes high, the tip dress counters of all electrodes will
be incremented and the wear counters will be set to a defined value.
If a program number (= electrode number 1 to n, n = maximum number of electrodes) is
selected with the Program selection signals and a Tip dressed signal becomes high, the
tip dress counter is incremented by 1 and the wear counter is set to a defined value for the
electrode selected by the number of the Program selection signals.
Influencing the wear counter with the input signals:
Figure 22: Influencing the wear and tip dress counters using the tip dress signal
(Program selection / Electrode-no.)
+
Tip dressed
=
- Wear Õ reset
- Tip dress counter Õ +1
1070 080 056-101 (99.09) GB