Machine control
– Operating elements
Overview of control sections
10
099-00T406-EW501
13.07.2017
Item Symbol
Description
0
10
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.
11
Coolant fault signal light
Signals pressure loss or low coolant level in the coolant circuit.
12
VRD
Voltage reduction device (VRD) signal light
The VRD signal light is illuminated when the voltage reduction device is operating wit-
hout fault and the output voltage is reduced to a value specified in the relevant stan-
dard (see technical data)
> see 4.5 chapter
. The voltage reduction device is only active
on VRD machine versions.
13
Hold
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
14
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.
15
Access control active signal light
Signal light is on when access control is active on the machine con-
trol
> see 4.4 chapter
.
16
Without function in this machine version.
3.1.2
Control section B
Figure 3-3
Item Symbol
Description
0
1
Parameter selection push-button, left
The welding sequence parameters are selected one after another in an anti-clockwise
direction.
2
Control button
Central control button to be pressed or turned
> see 3.3 chapter
.
3
Parameter selection push-button, right
The welding sequence parameters are selected one after another in a clockwise direc-
tion.
4
Signal light
• ---------- AC balance
> see 4.1.3 chapter
• ---------- Pulse balance
> see 4.1.6 chapter
