Barco SilverWriter 800, Field Service Manual

Page: 48 / 276

Field Service Manual December 2003
Page 48 of 276
The load position
Search the value for parameter 41. This parameter brings the drum during loading
into the load position.
The higher the value, the more distance there will be between the spoiler and the
top edge of the film.
1. Bring the film up with the commands “128 SFDREL” and “8 SFDREL”.
2. Perform the take-over movement with “1 SFDREL” and “128 RFDREL”.
3. Search now the value with the following command “x ROTA”, where x the value
of parameter 41 is.
4. Do a final loading of a film and check that the movements are correct.
Remark :
-
Adjust the top of the drum spoiler towards the top of the film.
If the film is not parallel to the spoiler we have to adapt the
eccentrics on the left and right side of the cassette.
-
Distance “spoiler filmedge” is drumdepending. Important is
that the other side of the film is just over the last vacuumslits.
Between 1 and 2 millimeter.
The unload position
Search the value for parameter 42. This parameter brings the drum during
unloading into the unload position.
1. Bring the yellow roller to the drum.(2 sfdrel)
2. Move the drum by hand so the spoiler is just before the unload table.
3. Ask for the drumposition with the command ‘drmpos .’, where the found value is
parameter 42.
Vacuum sensor
Check the setting of the dual vacuum sensor.
The value of the low vacuum without a film on the drum should be around 70
mbar. If you use a MF with a two valve system.
The high vacuum detection with a film complete around the drum should be
adjusted to the vacuum value when half of the film is off the drum. So it means that
when a film is loaded and you will remove half the film off the drum the machine
should detect it..
Check the commands “?VACON .” and “?VACHI .”
When the results are 1, then the vacuum detection is working correctly.
You can also check the vacuum sensor.
V-belt stepper motor
•
The position of the V-belt must be exactly in the middle off the V-disc.
•
The V-disc may not touch the the stepper motor when at rest.