INSTRUCTION MANUAL Digital Light Engraver
7
Dealing with faults
Effective date
30.09.2013
the Y direc-
tion
cation running on
computer
- Disable virus scanner
- Prevent large data transfer
- Do not run a second parallel application
Digital encoder or
reader unit is loose
- Check if both parts are securely fitted
Exposure
starts in the
wrong posi-
tion and ends
after one pass
Options - check
settings
- Resolution should be set to dpi. If not, this er-
ror will occur
Screen clamp
can no longer
be moved
down
Light barrier acti-
vated
- Barrier interrupted by debris or dirt
Light barrier misa-
ligned
-
Loosen the two retaining screws on the pho-
toelectric sensor transmitter and gently align
the beam so that it hits the receiver.
Light barrier defec-
tive
Check red beam and cable connections.
Lower limit switch
is defective
Short circuit in switch or cable
Screen clamp
can only be
moved up
Upper limit switch
is defective
Short circuit in switch or cable
Screen clamp
no longer
moves in any
direction
Motor or controller
is defective
Machine can-
not be
switched on
or it immedi-
ately switches
off again
Emergency stop
circuit has been in-
terrupted
- Check the position of all emergency stop
switches
- Emergency stop - bridge circuit in the control
box and try again. If the attempt was success-
ful, remove the bridging and look for the fault
in the circuit using continuity tester.
Power switch was
not pressed long
enough
- the machine is switched on using a separate
power switch, which has to be actuated for ap-
proximately 3 seconds
Input voltage incor-
rect
- measure input voltage at UPS input
UPS not switched
on or defective
Measure output voltage of UPS
Defective fuse
Bidirectional
exposure
does not work
on return
Bidirectional offset
is set to large in
DMD settings
Change value, should be in the range of 2
Preparations to be made before rectifying the fault
Switch off the machine in accordance with this instruction manual and then
lock the main switch to prevent it from being inadvertently restarted.
If necessary, isolate the machine by pulling the power plug from the mains
supply.
CST GmbH
Königsberger Straße 117
47809 Krefeld - Germany
Page 60 of 69
Betriebsanleitung DLE-AF 01.0 engl.docx