Owner manual

ULTRA-CUT 100 XT
A-76 APPENDIX Manual 0-5272
Troubleshooting:
1. GCM1000XT(alsocalledaBasicGasControl)doesnotuseCANBUS(ber-optic)communication.Ajumper
inthegascontrolconnectorJ56pins8&9,givesthesignal“BasicID”tellingtheCCMnottoexpectany
CANBUS. If somewhere this circuit is open, in the Gas Control cable, connector pins, connection from the
rearpanelGCMconnector,J55,totheCCM(J26)CCMwillexpecttoseeaCANBUSconnectionandreport
this error because there is no CANBUS connected.
2. DFC3000.Ifthegascontroldoesnothavepoweritwillnotcommunicate.Checkforpowertothegas
control boards.
a. WhenusingAutoGas(DFC3000)withDMC&DPCifthereisnopowertotheDMCmainboard,the
greenpowerlightontheDMCfrontpanelwillnotbelighted.Themainboardreceivesseveralvoltages
fromitsseparatepowersupplyboard.Forcommunicationitneeds+5VDC.ThereisagreenLED,D17
(rstontheleftoftherowofLEDs.)thatlightswhenthemainboardhas+5Vpower.
b. TheDMCpowersupplyboardhasseveralblueLEDsthatlightwhenithaspower.Ifnoneoftheseare
on check for the control cable being connected or the circuit breaker, CB2, on the plasma supply rear
panel may be tripped in which case there is probably a short somewhere.
c. TheDMCpowersupplywhichsuppliesseveralvoltagescouldbemissingoneormoreandstillhave
someblueLEDslighted.Checkforvoltages.
3. GCM 2010.
4. CANBUS/Fiber-opticcommunicationerrorscanbedifculttotroubleshoot,especiallywhentheyare
intermittent.See“TesttheFiber”below.Thingstolookforare:
a. Theconnectorsnotlockedinplaceateitherendoftheber.
b. Theberisdamagedorbentsharply.Thisshouldnotbethecaseiftheberisinsidetheprotectivehose
and the hose properly secured in the strain relief but that is not always the case.
c. Dirtontheendsoftheberorinthereceiver/transmitterwheretheberplugsin.Blowoutgentlywith
clean dry air such as is used to clean a camera lens.
d. Excessiveelectricalinterference.WhiletheberisimmunetoEMIitcanbothercircuitsateitherend.
Check that all the grounding connections are connected per the manual and are clean and tight. Check
theresistanceofthegroundrod(withallwiresdisconnectedfromit).Itmayhaveincreasedduetodryer
weather conditions. See the instructions in the Plasma Installation manual.
e. Defectivereceiver/transmitterorothercircuitsoneitherCCMorGasControlmainboard.Otherwise
replace either (or both) Gas Control main board or CCM.
Transmitter/ReceiverTests.Thetransmitter/receiverpaironthePCBandthebercablelookslikethis:
Art # 12314
Testtheber:
Notethatthebergoesfromblackononeendtoblueontheother.Shineabrightlightintooneendandyou
shouldbeabletoseelightfromtheotherend.Thistellsyouthelightisgettingthroughbutdoesn’tproveit
is strong enough.
The CCM is the communication master. It transmits then expects a reply from the Gas Control Module (GCM).
The GCM does not transmit on its own, only in response to a request from the CCM.