Configuring The Tig Potentiometer Torch Connection - EWM Tetrix 451 AC/DC AW FW Operating Instructions Manual

Design and function
Remote control

5.12.9.8 Configuring the TIG potentiometer torch connection

Risk of injury due to electrical voltage after switching off!
Working on an open machine can lead to fatal injuries!
Capacitors are loaded with electrical voltage during operation. Voltage remains present
for up to four minutes after the mains plug is removed.
1. Switch off machine.
2. Remove the mains plug.
3. Wait for at last 4 minutes until the capacitors have discharged!
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)!
Before reconnection, "Inspection and Testing during Operation" according to IEC/BS EN 60974-4
"Arc welding systems – Inspection and Testing during Operation" has to be performed!
When connecting a potentiometer torch, jumper JP27 on PCB T320/1 inside the welding machine
should be unplugged.
Welding torch configuration
Prepared for TIG standard or up/down torch (factory setting)
Prepared for potentiometer torches
This torch type requires the welding machine to be set to torch mode 3 > see 5.12.9.2 chapter.
98
DANGER
WARNING
Figure 5-84
Setting
 JP27
 JP27
099-000115-EW501
20.11.2017