HBS ACCU-TWIN 92-10-2280, Руководство по эксплуатации, Страница: 38 / 50

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38
14 Troubleshooting
14 Troubleshooting
Danger from insufficiently qualified operating personnel
‹
Carry out only the work described here on your power 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 Fault localisation Fault remedy Performance
Welding elements not
firmly attached
Plunging speed of wel-
ding element too low
Check welding piston for
ease of movement *)
Clean or replace the
welding piston*)
Qualified specialists
Weld splatters on
workpiece
Spark-protection is
defective
Inspect spark-protection
for possible defects
Replace spark-pro-
tection
Trained personnel
Welding gun does not
weld
Connecting line is
defective
Check connecting line
for electrical continuity*)
No electrical continuity:
replace connecting
line*)
Qualified specialists
Power unit cannot be
switched on
Accumulator voltage
too low
Measure accumulator
voltage
Replace accumulator Trained personnel
Accumulator is not
charged
External power supply
unit defective
Examine external power
supply unit
Replace external
power unit
Trained personnel
Accumulator is not
charged
or
power unit does not
switch to STAND-BY
or
welding gun does not
weld
P.C. board is defective Examine P.C. board*) Replace P.C. board*) Qualified specialists
Damage due to falling Examine power unit for
external damage
In the event of severe
damage, return entire
power unit
HBS Service
Permanent red
display: E1
Accumulator is dis-
charged
Charge the accumulator When error message
is still displayed after
loading, then accumu-
lator is defective
Trained personnel
Accumulator defective Examine accumulator Replace accumulator Trained personnel
Permanent red
display: E2
Thyristor defective Examine thyristor*) Replace thyristor*) Qualified specialists
Permanent red
display: E3
Charging error (char-
ging time of capacitors
exceeded)
Examine capacitors*) Replace capacitors*) Qualified specialists
Work marked with *) may only be carried out by qualified electricians!
‹
Please contact our Service department if none of the measures described
remedies the situation.
‹
Please use the form „Service & Support“ in the annex to send in the pow-
er unit.