Welding Current Polarity Reversal (Polarity Reversal); Voltage Reducing Device; Remote Control; Rt Pws1 19Pol - EWM Pico 350 cel puls pws Operating Instructions Manual

5.6

Welding current polarity reversal (polarity reversal)

This function can be used to reverse the welding current polarity electronically.
For example, when welding with different electrode types for which different polarities are stipulated by
the manufacturer, the welding current polarity can be switched easily on the control.
Operating ele-
ment
Please note the different functionality in case a RT PWS 1 19POL remote control is
connected > see 5.8 chapter.
5.7

Voltage reducing device

Only machine variants with the (VRD/SVRD/AUS/RU) code are equipped with a voltage reduction device
(VRD). The VRD is used for increased safety, especially in hazardous environments such as shipbuilding,
pipe construction or mining.
A VRD is mandatory in some countries and required by many on-site safety instructions for power
sources.
The VRD > see 4.2 chapter 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 standard (see technical
data > see 8 chapter).
5.8

Remote control

The remote controls are operated on the 19-pole remote control connection socket (analogue).
5.8.1

RT PWS1 19POL

When a remote control is connected, the polarity is changed at the changeover switch of the
remote control (ex works). If you wish to change the polarity at the welding machine control (with
a remote control connected) you can set this option in the machine configuration menu
(parameter rCP) > see 5.10 chapter.
5.8.2

RTF1 19POL

5.8.3

RT1 19POL

5.9

Power-saving mode (Standby)

You can activate the power-saving mode by either pressing the push-button > see 4.2 chapter for a pro-
longed time or by setting a parameter in the machine configuration menu (time-controlled power-saving
mode ) > see 5.10 chapter.
When power-saving mode is activated, the machine displays show the horizontal digit in the
centre of the display only.
Pressing any operating element (e.g. turning a rotary knob) deactivates power-saving mode and the ma-
chine is ready for welding again.
099-002061-EW501
05.05.2020
Action Result
Use this push-button to reverse the welding current polarity of the welding
current sockets. Signal lights at the welding current sockets show the
polarity selected.
The signal light shows the selected polarity at the welding current socket
-
below.
Functions
• Infinitely adjustable welding current (0% to 100%) depending on the preselected
main current at the welding machine
• Pole reversing switch, suitable for machines with PWS function
Features
• Infinitely adjustable welding current (0% to 100%) depending on the preselected
main current on the welding machine.
Functions
• Infinitely adjustable welding current (0% to 100%) depending on the preselected
main current on the welding machine.
Design and function
Welding current polarity reversal (polarity reversal)
41