Tweco 100 Ultra-Cut Plasma Cutting System with Automated Gas Control - Manual (Page 203)

ULTRA-CUT 100 XT
Manual 0-5303 APPENDIX A-79
The black end of the fiber cable is inserted into the transmitter which is the gray housing on the PCB. The other
end of the transmitting fiber is blue and goes into the receiver with the black housing.
A few seconds after power is turned on and when the pump has started up the CCM will try to transmit continu-
ously for a while. You can unplug the fiber from the CCM and should see the transmitter red LED on the CCM
PCB blinking. It may stop after a while so recycle power before deciding it isn’t working. If no light, check one
of the other transmitter/receiver pairs. If none of them blink the problem is in the CCM.
If at least one transmitter blinks plug the fiber back into that one then at the Gas Control end of the fiber (un-
plugged) you should see the red light coming out of the blue end.
The Gas Control transmitter does not transmit except in response to a request from the CCM so you will not see
any light from the GCM transmitter with the cable unplugged. However, if you turn the connector 90 deg and
insert the blue end into the receiver (black housing), leaving transmitter open, then the GCM should receive the
requests from the CCM and should blink it’s transmitter (gray housing) in response. If not, problem is likely
on the GCM board assuming it has power.
It is still possible even though you see the red light coming out the GCM end of the fiber that dirt in the transmit-
ter or receiver or on the fiber ends or the fiber is damaged so the light even though visible is not strong enough
for the GCM board. If all else fails replace the fiber cable and both CCM and GCM PCB.
502 CANBUS off due to excessive errors.
See 501 code for troubleshooting CANBUS faults.
503 CANBUS Data Error Warning.
This is a warning, does not shut the system down but is an indication that it probably will shut down soon (502
code). Troubleshooting is same as for 501.
504 Reserved for future use.
Should not get this but if it happens may be due to EMI. Contact customer service.
Group 6 codes relate to the CCM and program updates. One exception is 619 which is a
coolant flow switch FS1 fault.
601-611 Various CCM CPU board internal faults.
For most of these faults try recycling the power but if the problem returns only thing to do is replace the CCM.
Exceptions are:
1. 603 This is one of the reserved codes from the earlier product. Not used so it should never appear, if it does
contact customer service.
2. 607 Processor over temperature could occur if the ambient in the area of the CCM is too high. Try opening
the upper right side panel, perhaps blow some air to cool it off. If that doesn’t help or the ambient was not
too hot to begin with, replace the CCM.
3. 611 Code has various causes most of which require replacing the CCM. However, one possible cause is
the programming jumper on the CPU board (under the Static suppression PCB) has been left in the PROG
position. This is a factory setting used during initial programming and should never be found in the field. It
is NOT used for application code updates However, if someone did move it 611 will be the result.
612 USB port power fault.
USB port supplies +5V to power some USB devices such as the flash drive (thumb drive, memory stick), used for
program updates. A flash drive is the only device currently being used with this USB port. This fault detected
no or low voltage to the port. This could be a shorted flash drive or some other device that draws too much
current exceeding the limits of the USB power supply.
Try another flash drive or if you know this one is OK (it works with a computer), then replace the CCM.