Design and function
Access control
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4.1.2022
5.6 Access control
The machine control can be locked to secure it against unauthorised or unintentional adjustment. The
access block has the following effect:
• The parameters and their settings in the machine configuration menu, Expert menu and operation se-
quence can only be viewed but not changed.
• Welding procedure and welding current polarity cannot be changed.
The parameters for setting the access block are configured in the machine configuration
menu
> see 5.9 chapter
.
Enabling access block
• Assign the access code for the access block: Select parameter
and select a number code (0–
999).
• Enable access block: Set parameter
to access block enabled
.
The access block activation is indicated by the "Access block active" signal light
> see 4.3 chapter
.
Disabling access block
• Enter the access code for the access block: Select parameter
and enter the previously selected
number code (0–999).
• Disable access block: Set parameter
to access block disabled
. The only way to disable the
access block is to enter the selected number code.
5.7 Interfaces for automation
WARNING
Do not carry out any unauthorised repairs or modifications!
To avoid injury and equipment damage, the unit must only be repaired or modified by
specialist, skilled persons!
The warranty becomes null and void in the event of unauthorised interference.
• Appoint only skilled persons for repair work (trained service personnel)!
Damage to the machine due to improper connection!
Unsuitable control leads or incorrect connection of input and output signals can cause damage
to the machine.
• Only use shielded control leads!
• If the machine is to be operated with control voltages connection via suitable isolation ampli-
fiers is required!
• To control the main or secondary current via control voltages, the relevant inputs must be
enabled (see specification for activation of control voltage).
