Operation Manual
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A7 MIG Welder© Kemppi Oy 2018 1824
OPERATING MANUAL
4.4 User identification
4.4.1 Overview
The user identication system enables access control of
individual users. The feature is optional and can be turned
on when needed. Initially, the user identication system is
turned o. The welding system is in the initial state when
it is taken into use for the rst time or after a factory reset.
System conguration, control and monitoring functions
are divided into three access levels. The lowest level (level
0) covers the smallest subset of functions. The middle
level (level 1) covers a larger subset and the highest level
(level 2) covers all the available functions. The access level
is associated with a user account by specifying a role for
the user. See Table 4.18 "User roles in the A7 MIG Welder
system" for descriptions of dierent user roles and the
associated access levels.
User accounts are protected from unauthorized use by a
PIN code. The PIN code is a 4-digit numeric code that can
have any value between 0000 and 9999. Each user can
change their PIN code. Administrator level users can reset
the PIN codes of other users. The user identication system
requires at least one existing administrator level user
account in order to work correctly. The system prevents
deleting or changing an administrator user account when
no other administrator account exists.
In the initial state, there is only one user account called
“Admin” in the system. The PIN code of the Admin user is
‘0000’ (four zeroes) by default.
Table 4.18 User roles in the A7 MIG Welder system
Role Access level Description
Welder Level 0 A welder works on a robot cell changing workpieces and welding. The welder can
adjust welding values within the limits set by the supervisor.
The welder cannot change system settings or memory channels.
Supervisor Level 1 A supervisor teaches the robot new works and prepares the system for welding. The
supervisor species welding value limits to be used by welders. The supervisor creates
memory channels and deletes and modies them.
The supervisor cannot change the system settings related to the cell conguration.
Administrator Level 2 An administrator builds and maintains the robot cell. The administrator species all
system settings related to the xed environment, for example, emergency stop or
welding cable length. The administrator can create, modify and delete other users and
set user identication system o if needed.