HBS ARC 1550 Operating Manual page 53

Fault
Continuously red
Display: 8 .. 2
Gun does not lift, in spi-
te of , and
Lifting impossible
No shielding gas
Work marked with *) may only be carried out by qualified electricians!
‹ Please contact our Service department if none of the measures descri-
bed remedies the situation.
‹ Please use the form „Service & Support" in the annex to send in the pow-
er unit.
©HBS Bolzenschweiss-Systeme GmbH & Co. KG
All rights reserved – Reprinting, in whole or in part, only with the approval of the manufacturer
Possible cause Fault localisation
Welding sequence too Power unit resets auto-
fast matically
No lift adjusted Check settings of wel-
ding gun
Short circuit of soleno- Check resistance value
id circuit of the welding at control cable connec-
gun tor (18 Ω to 22 Ω) bet-
ween Pin 1 and Pin 2*)
Solenoid defective Check solenoid (18 Ω to
22 Ω)*)
Fuse F3 4 AF defective Check fuse F3 4 AF*)
Check resistance value
Solenoid circuit inter-
at control cable plug
rupted
(18 Ω to 22 Ω) between
Pin 1 and Pin 2*)
Check shielding gas
Shielding gas not
connection
connected
Check gas control for
Shielding gas control
activity
not enabled
Check shielding gas
Shielding gas valve
valve*)
defective
14 Troubleshooting
Fault remedy Performance
Let switched on power Trained personnel
unit cool down
Modify set parameters Trained personnel
Replace control cable Qualified specialists
connector, control
cable and solenoid*)
Replace solenoid*) Qualified specialists
Replace fuse F3 Qualified specialists
4 AF*)
Replace solenoid or Qualified specialists
control line*)
Connect shielding gas Trained personnel
Switch on shielding Trained personnel
gas control
Replace shielding gas Qualified specialists
valve*)
53