1070080029 / 05
Bosch Rexroth AG
Electric Drives
and Controls
PST 6xx0
|
|
212
/330
Information on this product
5.2.3
Structure
The power unit is permanently installed in the left part of the housing,
the timer module in the right side of the housing.
The power unit is always provided with connections for
•
mains supply,
•
welding transformer and
•
cooling water (only for types with water cooling).
The timer module includes display and operating elements in addition
to all connections/modules for coupling the PST 6xx0 to the higher level
PLC/robot unit and to the programming terminal.
AC welding
transformer
PST 6xx0
V1
U1
U2
V2
Mains
Transformer
Primary circuit
Secondary circuit
Electrodes
Current sensor
*)
to constant-current
regulation (KSR)
T
imer module
:
•
Communication with robot/PLC
•
Communication with programming device (BOS)
via RS232
•
Communication with programming device (BOS)
via field bus
•
Inclusion of various additional modules
For details, please refer to page 214 et seq.
Thyristor power unit:
•
Generating the %I
•
Controlling the AC welding transformer
•
Current sensor in the secondary circuit of the
transformer
•
Separate secondary circuit current sensor
•
Current sensor in the primary circuit of the PST
*)
: Options for welding current measurement:
Fig.5:
General structure of an AC welding system with PST 6xx0
ENGLISH
Summary of Contents for Rexroth PST 6 0 Series
Page 12: ......
Page 152: ...1070080029 05 Bosch Rexroth AG Electric Drives and Controls PST 6xx0 152 330 Notizen Notes ...
Page 170: ...1070080029 05 Bosch Rexroth AG Electric Drives and Controls PST 6xx0 170 330 Notes ENGLISH ...
Page 176: ......
Page 316: ...1070080029 05 Bosch Rexroth AG Electric Drives and Controls PST 6xx0 316 330 Notes DEUTSCH ...
Page 320: ...1070080029 05 Bosch Rexroth AG Electric Drives and Controls PST 6xx0 320 330 Notes DEUTSCH ...