Special functions and options
Arc break watch-
dog function
If the arc breaks and no current starts to flow again within a time defined in the Setup
menu, the system cuts out automatically. The service code "no | Arc" appears on the
control panel.
NOTE!
At maximum welding current and very low arc length it is possible that the arc will
break without the service code “no | Arc” appearing.
If the arc is reduced significantly, the welding current would have to be increased to more
than the maximum current in order to be able to maintain the requested welding power.
As this is not acceptable, the power source switches off for safety reasons.
To start welding again, press the torch trigger again.
In the factory settings, the arc break watchdog function (Arc) is set to OFF.
The settings for the arc break watchdog parameter (Arc) are described in "Setup menu -
level 2".
Ignition time-out
function
The power source has the Ignition time-out function. This function is not factory-activated
as standard.
Once the torch trigger is pressed, gas pre-flow begins immediately. Wire feeding then
begins, followed by ignition. If no current starts flowing before the length of wire specified
in the Setup menu has been fed, the power source cuts out automatically. The service
code "no | IGn" appears on the control panel.
“E55” is displayed on the JobMaster torch and on the field bus module.
To make another attempt to achieve ignition, press the torch trigger again.
The settings for the Ignition time-out parameter (ito) are described in the
"Setup
‑
menu
‑
level 2" section.
Spatter-free igni-
tion option
The spatter free ignition option (SFi) makes it possible to ignite the arc with practically no
spatter. At the beginning of welding, the wire is slowly fed as far as the surface of the
workpiece and then stopped as soon as it touches it. Next, the welding current is activ-
ated and the wire is pulled back. Once the correct arc length has been reached, the wire
starts being fed at the speed specified for this welding process.
NOTE!
The optimum function of the spatter-free ignition option can only be guaranteed in
aluminium applications in conjunction with Fronius push-pull wire-feed unit sys-
tems.
System requirements:
-
Firmware version on the power source: OFFICIAL UST V2.60.1
-
Firmware version on the wire-feed unit: OFFICIAL SR41 V1.40.15
111
EN
Toowoomba Welding Supplies : tweld.com.au : Ph +61 7 4659 0044
Summary of Contents for CMT 4000 Advanced
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Page 21: ...General information 21 Toowoomba Welding Supplies tweld com au Ph 61 7 4659 0044...
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Page 31: ...Control elements and connections 31 Toowoomba Welding Supplies tweld com au Ph 61 7 4659 0044...
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Page 71: ...Installation and commissioning 71 Toowoomba Welding Supplies tweld com au Ph 61 7 4659 0044...
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Page 95: ...Welding 95 Toowoomba Welding Supplies tweld com au Ph 61 7 4659 0044...
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Page 131: ...Setup settings 131 Toowoomba Welding Supplies tweld com au Ph 61 7 4659 0044...
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Page 173: ...Troubleshooting and maintenance 173 Toowoomba Welding Supplies tweld com au Ph 61 7 4659 0044...
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Page 189: ...Appendix 189 Toowoomba Welding Supplies tweld com au Ph 61 7 4659 0044...
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