Troubleshooting - HBS Visar 650 Operating Manual

14 Troubleshooting

14 Troubleshooting
Danger from insufficiently qualified operating personnel
‹ Carry out only the work described here on your stud welding unit or stud
welding gun.
‹ Repairs may only be carried out by appropriately qualified personnel.
‹ Inform your dealer or your maintenance department.
Fault Possible cause
No ground connection
No display
Welding gun not con-
nected
Transition resistance
(between stud and
workpiece) too high
Ground cable broken
Welding gun cable
broken
Defective connecting
No display
line of welding gun
Welding gun trigger
button defective
Control cable broken
Continuously Yellow Welding sequence too
fast
Gun does not lift, in No lift adjusted
spite of and
Short circuit of solenoid
circuit of the stud wel-
ding gun
Solenoid defective
Lifting impossible Solenoid circuit inter-
rupted
48
Fault localisation
Check ground connection
on workpiece
Check welding gun
connection
Check material surface
Check ground cable*)
Check welding gun cable*)
Check function of connecting
line*)
Check control cable for elec-
trical flow with triggered start
button*)
Check control cable for elec-
trical flow*)
Stud welding unit resets
automatically
Check settings of welding
gun
Check resistance value at
control cable connector (18 Ω
to 22 Ω) between Pin 1 and
Pin 2*)
Check solenoid (18 Ω to
22 Ω)*)
Check resistance value at
control cable connector (18 Ω
to 22 Ω) between Pin 1 and
Pin 2*)
©HBS Bolzenschweiss-Systeme GmbH & Co. KG
All rights reserved – Reprinting, in whole or in part, only with the approval of the manufacturer
Fault remedy Performance
Tighten ground con- Trained personnel
nection
properly
Connect welding gun Trained personnel
properly
Clean or grind material Trained personnel
surface
Replace ground cable*) Qualified
specialists
Replace welding gun Qualified
cable*) specialists
Replace connecting Qualified
line*) specialists
Replace welding gun Qualified
trigger button*) specialists
Replace control cable*) Qualified
specialists
Let switched on stud Trained personnel
welding unit cool down
Modify set parameters Trained personnel
Replace control cable Qualified
connector, control cable specialists
and solenoid*)
Replace solenoid*) Qualified
specialists
Replace solenoid or Qualified
control cable*) specialists