EWM T4.06-Tetrix AC/DC Smart 2.0 Operating Instructions Manual page 10

Machine control – Operating elements
Overview of control sections
Item Symbol
10
11
12 VRD
13 Hold
14
15
16
10
Description 0
Character function signal light
Indicates that it is possible to weld in an environment with major electric hazards, such
as in boilers. Service must be informed if this signal light is not on.
Coolant fault signal light
Signals pressure loss or low coolant level in the coolant circuit.
Voltage reduction device (VRD) signal light > see 5.5 chapter
Signal light Status display
After each completed welding task, the last values used in the welding process for the
welding current and welding voltage are shown on the displays, and the signal light will
be on
Excess temperature signal light
In case of excess temperature, temperature monitors de-activate the power unit, and
the excess temperature control lamp comes on. Once the machine has cooled down,
welding can continue without any further measures.
Access control active signal light
Signal light is on when access control is active on the machine con-
trol > see 5.4 chapter.
Without function in this machine version.
099-00T406-EW501
14.07.2020