Stratasys P750K, User Manual

Page: 186 / 196

Operating & Maintaining the Stratasys P750K 3D Printer
6–70
DOC08010 Rev. A (DRAFT 1)
Test Descriptions
and
Troubleshooting
The ȱ following ȱ table ȱ lists ȱ the ȱ name ȱ of ȱ each ȱ test ȱ in ȱ the ȱ Built Ȭ in ȱ Tests ȱ suite, ȱ
together ȱ with ȱ its ȱ description ȱ and ȱ a ȱ possible ȱ reason ȱ for ȱ its ȱ failure. ȱ If ȱ you ȱ
need ȱ assistance, ȱ contact ȱ your ȱ Stratasys ȱ service ȱ provider.
Test Name Description Possible Reason for Failure
Sub Ȭ System ȱ
Communication
Tests ȱ communications ȱ between ȱ Eden ȱ
components.
•
Disconnected ȱ communications ȱ cable.
•
Faulty ȱ cable.
FIFO ȱ Non Ȭ Interrupt/
FIFO ȱ Interrupt
•
Tests ȱ the ȱ data ȱ queue ȱ in ȱ the ȱ DATA ȱ PCI ȱ
card.
•
Tests ȱ the ȱ Windows ȱ interrupt.
•
If ȱ both ȱ FIFO ȱ tests ȱ fail: ȱ
Faulty ȱ DATA_PCI ȱ card.
•
If ȱ only ȱ the ȱ FIFO ȱ Interrupt ȱ test ȱ fails:
Faulty ȱ Windows ȱ interrupt.
Encoder Tests ȱ the ȱ encoder ȇ s ȱ reliability ȱ by ȱ
comparing ȱ readings ȱ from ȱ multiple ȱ runs ȱ
along ȱ the ȱ X Ȭ axis.
Faulty ȱ encoder.
System ȱ Info Compares ȱ the ȱ following ȱ parameter ȱ
values ȱ with ȱ the ȱ minimum ȱ
requirements.
•
physical ȱ memory
•
available ȱ memory
•
free ȱ space ȱ on ȱ disk
•
monitor ȱ resolution
Failure ȱ of ȱ RAM ȱ memory ȱ allocation ȱ in ȱ the ȱ
printer ȱ computer.
RFID Verifies ȱ the ȱ presence ȱ of ȱ RFID ȱ tags ȱ on ȱ all ȱ
loaded ȱ material ȱ cartridges, ȱ and ȱ tests ȱ
them ȱ by ȱ writing ȱ to ȱ and ȱ reading ȱ from ȱ
each ȱ one.
•
Faulty ȱ RFID ȱ reader.
•
Faulty ȱ RFID ȱ reader ȱ power ȱ supply.
•
Faulty ȱ or ȱ misaligned ȱ RFID ȱ tag.
•
High ȱ level ȱ of ȱ electromagnetic ȱ noise ȱ
around ȱ the ȱ RFID ȱ tag.
System ȱ Voltages Checks ȱ if ȱ the ȱ following ȱ voltages ȱ are ȱ
within ȱ 5% ȱ of ȱ the ȱ required ȱ voltage:
•
40V ȱ to ȱ the ȱ print ȱ heads ȱ by ȱ the ȱ VPP ȱ
power ȱ supply
•
12V ȱ to ȱ the ȱ height ȱ thermistors ȱ by ȱ the ȱ
VDD ȱ power ȱ supply
•
VPP ȱ power ȱ supply: ȱ
Faulty ȱ head ȱ drive(s).
•
VDD ȱ power ȱ supply: ȱ
Faulty ȱ height ȱ thermistor(s).
Block ȱ Filling Analyzes ȱ the ȱ thermistor ȱ readings ȱ when ȱ
the ȱ block ȱ is ȱ full ȱ and ȱ when ȱ it ȱ is ȱ empty.
Faulty ȱ thermistor.
Interlock Tests ȱ the ȱ interlock ȱ in ȱ the ȱ printer ȱ cover.
•
Failure ȱ of ȱ interlock ȱ mechanism.
•
Faulty ȱ latch. ȱ
•
Disconnected ȱ cable.
Cabin ȱ Temperature Tests ȱ the ȱ temperature ȱ level ȱ in ȱ the ȱ
build Ȭ tray ȱ area.
Faulty ȱ temperature ȱ sensor ȱ (OHDB).
Head ȱ EEPROM Tests ȱ the ȱ read/write ȱ capabilities ȱ of ȱ the ȱ
print Ȭ head ȱ driver ȱ cards.
Faulty ȱ print Ȭ head ȱ driver ȱ card(s).
Head ȱ Voltage Checks ȱ the ȱ control ȱ of ȱ voltages ȱ supplied ȱ
to ȱ the ȱ print ȱ heads.
Faulty ȱ print Ȭ head ȱ driver ȱ card(s).
Head/Block ȱ Heaters Tests ȱ the ȱ heaters ȱ in ȱ the ȱ print ȱ heads ȱ and ȱ
in ȱ the ȱ print Ȭ block ȱ body.
Faulty ȱ heaters ȱ or ȱ thermistors.
UV ȱ Lamps Tests ȱ each ȱ UV ȱ lamp ȱ at ȱ the ȱ High ȱ Quality ȱ
power ȱ level.
Faulty ȱ UV ȱ lamp.
Faulty ȱ UV ȱ power ȱ supply.
Disconnected ȱ UV ȱ cable.
Axes ȱ Limit Tests ȱ the ȱ hardware ȱ and ȱ software ȱ limits ȱ
of ȱ all ȱ axes.
Faulty ȱ hardware ȱ sensors. ȱ
Wrong ȱ Max ȱ Position ȱ parameter.
Parameter ȱ Sanity ȱ Check Compares ȱ the ȱ values ȱ of ȱ all ȱ printer ȱ
parameters ȱ (in ȱ cfg ȱ files) ȱ to ȱ the ȱ required ȱ
values.
One ȱ or ȱ more ȱ of ȱ the ȱ printer ȱ parameters ȱ is ȱ
not ȱ within ȱ the ȱ required ȱ range. ȱ
Details ȱ appear ȱ in ȱ the ȱ BIT ȱ report.
Vacuum Tests ȱ the ȱ vacuum ȱ level ȱ in ȱ the ȱ print ȱ
block.
•
Faulty ȱ vacuum ȱ sensor. ȱ
•
Vacuum ȱ leakage. ȱ
•
Wrong ȱ parameters.