Tweco 400 XT Ultra-Cut Plasma Cutting System With Automated Gas Control - Manual (Page 80)

ULTRA-CUT 400 XT
4-12 OPERATION Manual 0-5306
4.09 Sequence of Operation
Ultracut with DFC 3000 using TSC 3000
The purpose of this section is to explain the steps an operator should follow when using the DFC 3000 with the TSC 3000 touch
screen control panel for a specific cutting process. Also included are steps to follow for changing torch consumables.
NOTE
For units not using the TSC 3000 where control is embedded into the cutting table controller most of this sequence
still applies except for the parts that are specific to the TSC 3000. For those sections refer to the cutting table con-
troller documentation.
NOTE
When the TSC 3000 is installed, J14 on the CCM must be set for 2 Wire communication. For units not using a TSC
3000, determine if the communication requires 2 wire or 4 wire communication and set accordingly. The XT iCNC
controller requires 4 wire setting. See section 3.13 and the Appendix.
This assumes the system setup; language and units, lead lengths, etc., have already been performed by the installer and the
system is confirmed as operational.
1. Before Applying power:
a) Ensure that the required gasses are connected to the DMC 3000 inlet and gasses are turned on and set for required
inlet pressure.
b) Ensure you have a torch cartridge with consumables installed on the torch.
If you don’t know what consumables you need to use and need to select the cutting process in order to read the consumables
list on the TSC 3000, you can start up with Plasma Disabled. In this case the operation sequence will skip to step 3.
c) Set Plasma Enable SW on the TSC 3000 to Enabled.
2. Turn on 3 phase power at the main disconnect (Plasma Enable on TSC 3000 on). Turn ON/OFF switch to the ON position (up).
System will then go through the start up sequence.
a) For about 10 seconds the decimal points of the 4 digit display blink from right to left.
b) Next the 4 rectangular LED indicators and the 4 status display digits illuminate all segments as a test.
c) Then for about 6 seconds the display shows the letter “C” (code) followed by the CCM code version. Example “C1.2.0”
. During this time various input voltage tests are being performed. If a fault is found its code is displayed and the start
up sequence halts. Faults will show “E” or “L”. If Plasma hasn’t been Enabled by this point, E101 will be displayed.
If disabled the pump will not start, the gas LED doesn’t blink and the contactors don’t close (steps d & e). However
the events of steps f & g will continue and you can select and load the cutting process. Until the process is loaded,
the display shows “0” indicating no process has been loaded. If a fault exists the display alternates between “0” and
the fault code.
d) The coolant pump starts and the Gas indicator blinks, and the display shows E304, while the cutting gasses are
purged. Purge time varies with the torch lead length and the cutting process. See section 4.04 for setting lead length.
When the gas purge ends the E304 goes away but the gas LED may continue blinking if the coolant flow hasn’t been
satisfied.
e) Once coolant flow is detected, usually within 5 seconds after the pump starts, the input contactor(s) W1 (W2) close
and the AC indicator lights.
f) At the same time the DMC & DPC, both Green & Red LEDs, also blink their firmware version.
g) Following the firmware version indication, while CCM establishes communication with the gas control (Step e.), the
coolant pump and fans come on to “prime” the system. The “gas” indicator on the front panel blinks until correct
coolant flow is detected. Normally this takes only a few seconds but can last up to 4 minutes if there is a problem.
Should there be a problem with priming the coolant system, after 4 minutes the Status indicator will show code 404
and the pump will stop until you rectify the problem and recycle the power.