HBS IT 1002 - Malfunctions and Corrective Actions

52 IT 1002 Order No BA 93-66-1206 Issue 03.11.08
5.9 Malfunctions and Corrective Actions
Malfunction Possible cause Fault finding Corrective action Carried out by
Primary sw itch does
not rest in position 1
Primary sw itch
def ective
Check primary sw itch *) Replace primary sw itch *) Qualified personnel
Fuse F4 1 AF for
primary sw itch
def ective
Check voltage supply of primary
sw itch *)
Replace fuse F4 1 AF *) Qualified personnel
Primary cable defective Check primary cable for breaks *) Replace primary cable *) Qualif ied personnel
No LED display at the
front
Fuse F5 1 AF defective Check fuse F5 1 AF *) Replace fuse F5 1 AF *) Qualified personnel
No C-display No ground connection Check ground connection on
workpiece
Tighten ground connection
properly
Qualified personnel
Welding gun not
connected
Check w elding gun connection Connect w elding gun properly Instructed personnel
Transition resistance
(betw een stud and
w orkpiece) too high
Check material surf ace Clean or grind material surface Instructed personnel
Ground cable broken Check ground cable *) Replace ground cable *) Qualified personnel
Welding gun cable
broken
Check w elding gun cable *) Replace w elding gun cable *) Qualified personnel
No display Defective connecting
line of w elding gun
Check function of connecting line *) Replace connecting line *) Qualified personnel
Welding gun trigger
button defective
Check control cable for electrical
flow w ith triggered start button *)
Replace w elding gun trigger
button *)
Qualified personnel
Control cable broken Check control cable for electrical
flow *)
Replace control cable *) Qualified personnel
Continuously red
display:
Display 8888
Welding sequence too
fast
Pow er unit resets automatically Let sw itched on pow er unit cool
dow n, pow er unit resets
automatically
Instructed personnel
Welding gun does not
lift, in spite of
and
No lift adjusted Check settings of w elding gun Modify set parameters Instructed personnel
Short circuit of solenoid
circuit of the w elding
gun
Check resistance value of control
cable (18 Ω to 22 Ω) betw een Pin 1
and Pin 2 *)
Replace control cable plug,
control cable, solenoid *)
Qualified personnel
Solenoid def ective Check solenoid (18 Ω to 22 Ω) *) Replace solenoid *) Qualified personnel
Fuse F3 4 AF defective Check fuse F3 4 AF *) Replace fuse F3 4 AF *) Qualified personnel
Lif ting impos sible Solenoid circuit
interrupted
Check resistance value at control
cable plug (18 Ω to 22 Ω) betw een
Pin 1 and Pin 2 *)
Replace solenoid or control line *) Qualif ied personnel
No shielding gas Shielding gas not
connected
Check shielding gas connection Connect shielding gas Instructed personnel
Shielding gas control not
enabled
Check shielding gas control for
activity
Sw itch on shielding gas control Instructed personnel
Shielding gas valve
defective Check shielding gas valve *) Replace shielding gas valve *) Qualified personnel
Actions marked with *) must only be carried out by qualified
electricians!
If none of the actions is successful, please contact our service
department.
5 Stud Welding Procedure
5.9 Malfunctions and Corrective Actions