Bosch PST 6101.321 Technical Information page 67

Electrical connection
<Weld/No weld external>
7-24
PST 6101.321 / PSI 6101.321
This signal allows to disable the firing of the welding timer as for example during set-up
operations ([Sequence] without current).
In addition to the <Weld/No weld external> signal, the setting of weld/no weld internal for
all programs and furthermore the weld/no weld setting for an individual program affect the
firing.
These three firing settings are linked by "AND".
If weld has been deactivated, the time [sequence] of the program will remain identical to
the [sequence] with activated firing. However, no welds are performed, there is no weld-
ing current.
- No weld external
- Weld external
For all timers
External
weld
off
off
off
off
on
on
on
on
[1] Caution: Program-related firing may be active for other programs
Figure 21: Firing settings
: 0 signal
: 1 signal
Program-related
Weld
firing
internal
off
off
on
on
off
off
on
on
Program-related
Sequence without
off
welding current
Sequence without
on
welding current
Sequence without
off
welding current
Sequence without
on
welding current
Sequence without
off
welding current
Sequence without
on
welding current
Sequence without
off
[1] welding current
Sequence w i t h
on
welding current
1070 080 056-101 (99.09) GB
sequence