Service Manual – Troubleshooting
SERVICE MANUAL • X-MIND prime 3D • (19) • 11/2019 • NXMPEN080A
9.2.7.5
E754: Broken filament
This message is displayed when there is a fault on the power circuit of the filament,
not only the filament itself.
With the unit switched OFF (at least for 4 minutes), perform the following tests:
1.
Verify the continuity (max Ohmic value ≤ 0.5Ω) between pins the X57-5 and X57-
6: if there is no continuity, replace the tubehead (see paragraph 11.3.10).
2.
Verify that the pre-heating parameters stored in the MCU EEPROM memory
matches the ones listed in the equipment parameters table (supplied as paper
copy with the unit documentation – see paragraph 14.1) (see paragraph 8.4);
correct them and verify if the error is still present.
Note
If the tubehead is a spare part, the new pre-heating values are printed on
the tubehead label.
3.
If the error was not solved by point 1. And 2., replace the tubehead and then
the Generator board.
9.2.7.6
E755: Alarm “Backup timer intervention”
The emission is controlled through a safety backup timer that interrupts the power
to the tubehead in case of a fault (hardware or software). The intervention of the
backup timer is signalled also by a lighting on of the red LEDs H5 and H9.
Warning
This error can be safety related. In case of Error messages E755, the system
must be immediately powered off and not been used, because an emission
has not been terminated into the expected time.
In any case it is mandatory to contact Technical Service
and not use or switch ON
the system anymore.
9.2.7.7
E756: PFC (Power Factor Control) failure
This message is signalling that the PFC (Power Factor Control) circuit functioning is
not correct.
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