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Daihen OTC RTW5000H User Manual

Daihen OTC RTW5000H
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34
6. Troubleshooting
Phenomena Possible cause
No arc generation Contact failure or breaking of welding cable
No smooth wire feeding
Unstable welding
performance
Shortage of wire pressure in the feed roll
Tip wear
Outlet guide wear
Wire waste powder has deposited in a wire feeding path.
Wire contact on tip
No smooth wire feeding
The hole on the tip became larger.
The distance between tip and workpiece is too short.
Shock sensor cannot
be released.
Contact failure or breaking of shock sensor cable
Nozzle is bent.
* When a contact accident occurs and the robot operation stops by the
shock sensor’s detection signal, first investigate the cause of the
accident. Pay close attention while operating the robot or restoring the
power without known cause. It may be hazardous.
To release the contact, see the instruction manual for robot
controller “BASIC OPERATIONS” and “TEACHING”.
Aim deviation
No orifice is mounted.
* If an orifice is not mounted, spatter will be deposited inside to lead
conduction between the nozzle and tip body. This will result in anomalous
arc discharge and bending in the tip body.
The torch fixing screws (M5×20) are loose,
* Use the proper torque value to tighten them. (See the page 9 and 13.)
The shock sensor has worked because of hitting the torch.
* Move back the torch quickly so that the aiming point will be coincident
with the original point.
Poor shielding
A designated tip and nozzle are not mounted.
Breaking in the hose (with the air-blow torch).
<RZ Series torch>
Unsmooth wire feeding
Unstable welding
Spatter accumulation on tip holder
* Spatter accumulation on tip holder makes power supply to wire very
unstable and may cause the wire feeding resistance to increase. Remove
spatter accordingly to keep the tip holder clean for good performance in
welding.
Inappropriate length of liner
* When welding is performed with inappropriately longer liner,
higher-than-necessary pressure is applied onto the collet tip and the wire
feeding becomes unstable, causing unstable welding. Be sure to cut a
liner correctly according to the length of each torch for correct operation.
(See the page 27).
Welding without liner clamp mounted
* The movement of robot may cause the unfixed liner to move around
violently inside the coaxial power cable. At this time,
higher-than-necessary pressure is applied onto the collet tip and the wire
feeding becomes unstable.
<RZ Series torch>
Wire caught at the collet tip.
* When the wire is passed through the torch or retracted, the wire gets
caught at the slit of the collet tip. Loosen the tip holder for proper feeding.

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Daihen OTC RTW5000H Specifications

General IconGeneral
BrandDaihen
ModelOTC RTW5000H
CategoryWelding Accessories
LanguageEnglish

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