Kunststoffschweißtechnik
Equipment care / maintenance / repair
Chapter 7
22.11.2005
Working Instructions WIDOS 4900 CNC 3.0 (110 V)
Page 49 of 76
Error message
Cause
Remedial action
error printer
Printer is not connected, not on-
line or there is no paper in the
printer
Connect the printer, switch
on-line or refill the paper
power failure
at last welding
Power supply of the control unit
has been interrupted during the
welding process
Eliminate the cause of the
power failure and restart
welding
insert new paper
in printer
Single paper modus of the
printer
Confirm the inserted sheet of
paper with <Enter>
no welding in
memory
Internal memory is empty
memory full !
Internal memory is full (more
than 400 weldings stored)
Read internal memory
(Laptop and WICON or
PCMCIA card)
ambient.temp.
not o.k. !
Ambient temperature is higher
than 50° C or lower than 0° C
Use a welding tent or um-
brella or pre-heat pipe ends
error des. temp.
choose material !
No pipe parameters were set
Set pipe parameters
error: check cable
to way measuring !
Travel measuring cable is not
connected or defective
Connect or replace travel
measuring cable
error: pipes not
well in place !
In the pressureless phase, the
pipes open the clamping devices
Prevent the clamping devices
from opening
7.10. Possible Defects and their Elimination
Defect
Possible cause
Identification and
elimination
Machine does not move
forward nor backward
- Emergency-stop is pressed
- A valve is not getting its
command
- Travel cable is not plugged
- Travel cable is interrupted
- Unlock the Emergency-stop
- Start "Test and diagnosis
program".
- Perform diagnosis No. 0008
travel test
Planer works the whole
time or not at all
- Button at the planer is not
pressed
- Semi-conductive relais
defective
- Check the button.
- Perform diagnosis No. 0003
planer
After the planer program
the planer is needed again
and again
- No 2 mm material were planed
- The travel measurement
varies too much due to a
defective travel recorder or a
defective travel recorder
cable.
- Make sure that min. 2 mm
material are being planed
(circular chip!).
Machine does not switch
from bead up programm
to "heating"
- No travel change is recognized - Perform diagnosis Nr. 0008
travel test
The pressure falls very
fast, the pump keeps on
working
- Pipes have slipped through
- Hydraulic bloc is leaky
- Cylinder is leaky
- Clamp pipes correctly.
- Check oil leakage.
- Inform service-team