Bosch Rexroth PST 6 Serie Betriebsanleitung Seite 268

268 / 416 Bosch Rexroth AG
Information on this product
UST (upslope time / time of current rise)
DST (downslope time / current decrease time)
PstWLD (3rd weld time; post‐heating time)
3.CT (3rd cool time)
HLD (Hold time)
OFF (Off time)
Refer to page 265.
Refer to page 265.
Refer to page 263.
If programmed with a value greater than 0, it separates the second cur­
rent block from the third current block. Serves to release stress in the
parts to be welded.
Refer to page 262.
The 3.CT can only be programmed if PstWLD is greater than 0.
Used to securely hold the parts to be welded during the cooling phase.
No current flows during this period of time.
After HLD, the solenoid valve is switched off and the welding gun is
opened. If no welding error is detected, the WELD COMPLETE (WC)
output signal is generated.
This time period is only relevant for the "Repeat" welding mode. It is
used to determine the period of time in which the welding gun is to re­
main open until the next SQZ. As a result, the manual gun can be pulled
to the next welding position.
PST 6xxEx | 1070087088 / 08