ULTRA-CUT 400 XT
4-2
OPERATION
Manual 0-5275
4.02 System Operation
This section contains operating information which is specific to the power supply.
WARNING
Review the safety precautions in Section 1.
If the power supply cord has a plug or is not permanently connected to power, be sure the power
to the outlet is disconnected when inserting the plug into the outlet.
Disconnect primary power at the source before assembling or disassembling power supply,
torch parts, or torch and leads assemblies, or adding coolant.
It is not enough to simply move the ON/OFF switch on the unit to OFF position when cutting
operations have been completed. Always open the power supply disconnect switch five minutes
after the last cut is made.
NOTE!
Prior to starting the system determine the process to be used. The process is determined
by the type and thickness of the metal to be cut. Select and install the required consum-
ables, connect the required gasses to the system.
1. Connect system to primary input power. An indicator will light on the rear panel when AC power is applied to the unit.
On the GCM 2010 place switch (upper right corner) in the “Enable Plasma” position.
2. Turn ON/OFF switch to ON (up) position. System goes through the “Start up Sequence”.
• For about 10 seconds the decimal points of the 4 digit display blink from right to left.
• Next the 4 rectangular LED indicators and the 4 status display digits illuminate all segments as a test.
• 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
and the startup sequence will not proceed.
• The coolant pump starts, the Gas indicator blinks and the display shows the current control setting (from the GCM
2010) alternating with the Status code which will be E304, for as long as the gas purge lasts. Once the purge ends
the display shows only the amperage without any letter, for example, “100” for 100 amps. Purge time varies with the
torch lead length and the cutting process. See section 4.05 for setting lead length on the GCM 2010. If the GCM 2010
is not in RUN mode E304 will continue to be displayed along with the amperage setting until the GCM 2010 is set to
RUN.
• 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.
When the Gas Control has completed the gas purge code E304 will go away and the Gas LED stops blinking however
if correct coolant flow was not obtained the contactors will not close and the Gas LED will continue blinking until
required coolant flow has been obtained. The Gas LED will blink for up to 4 minutes after which code E404 will be
displayed indicated proper coolant flow was not established.
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