4
Connection and installation
Page 25
Stud welding unit
operating manual
Date:
July 2021
ALPHA 850
07.2021 / EN
Rev.:
A
4.3 Control cable connection
The control cable socket takes the control cable plug. The control cable transfers the
signals to the welding gun controls.
Based on the system components to be configured, the control cable socket of the
ALPHA 850 is designed 4-pin or 7-pin.
Standard operation:
•
When connecting a welding gun with manual stud loading, the gun’s control cable
must be:
- connected directly to the ALPHA 850’s 4-pin control cable socket,
- connected through a control cable extension (option) to the ALPHA 850.
Automatic mode (option):
•
When connecting a gun with automatic stud loading, the welding gun’s
multicoupling must be:
- connected directly to the sorter,
- connected through an optional hose package extension to the sorter.
•
The connection between the ALPHA 850’s 7-pin control cable socket and the
sorter is made using an optional control cable (see Chapter 1.8).
The appropriate control cable sockets are assigned as follows:
Pin 1:
Welding gun coil (
−
)
Pin 2:
Welding gun coil (+)
Pin 3: Start welding (+)
Pin 4: Welding (
−
)
Pin 1:
Stud feed (
−
)
Pin 2:
Stud feed (+)
Pin 5:
Welding gun coil (+)
Pin 3: Start weld cycle (
−
)
Pin 6
Welding gun coil (
−
)
Pin 4: Start welding (+)
Pin 7:
not used
The connection is secured by screwing on the control cable plug.
