Tweco 300 Ultra-Cut(March 2013) - Manual (Page 87)

Manual No. 0-5134 4-17 OPERATION
ULTRA-CUT 300
Code Message Remedy / Comments
2-1 Missing AC Phase Blown fuse, Broken or loose connection on power cable
2-2 Wrong input voltage
Inverter(s) not configured correctly for input voltage;
Poor power quality (brownouts, dropouts); Input power capacity /
wiring too small causing voltage drop; broken or loose power cable
connections.
2-3
Inverter Over
Temperature Ambient above 40 deg C. (104 F); Blocked airflow.Failed fan;
Defective inverter.
2-4
Power Supply not
Ready
Defective inverter; PCB4; PCB7; defective input contactor.
2-5 DC Output Low
Less than 60 VDC; Defective inverter, shorted output; CCM voltage
sense (J6) wire open or disconnected. Negative lead short to gnd.
Shorted chopper (100-300A only).
2-6 Inverter input fault
Capacitor bank voltage imbalance (400-460-600V only) or
inverter primary switching circuit overcurrent. If occasional may
be line voltage surge; remove power to reset. If persists
defective inverter; LED on inverter indicate which one.
2-7 Unexpected current
Current above 20A in work or pilot leads before pilot ignition;
Possible shorted torch; Defective current sensor.
2-8
Unexpected current in
pilot circuit
Current above 5A in pilot circuit; wrong or mismatched
consumables; Pilot lead shorted to negative in torch tube; Possible
shorted torch
2-9
Unexpected current in
work lead Current above 5A in work lead; Short to chassis in RAS; Negative
lead short to ground.
2-10
Output Current Too
High
Current greater than 20% above process setting. Measure current of
each inverter, only one high likely defective inverter. All high likely
defective PCB5, CCM.
2-11
Output Current Too
Low
Current more than 20% below process setting. Measure current of
each inverter, only one low likely defective inverter. All low likely
defective PCB5, CCM.
3-1
Gas Control
Communication fault.
Cannot establish Communication with gas control. DMC to DPC
Control Cable not connected or Fiber-optic cable not properly
connected, dirty or defective; DPC power supply or Control PCB
defective. DMC Control PCB defective; CCM defective, replace.
3-2 Gas Control reply fault.
Connection was established but Gas Control did not reply to the
CCM in the allowed time (15 ms.). Dirt on fiber ends or in
connectors, blow out with clean dry air. Fiber not locked into
connector; sharp bends in fiber; fiber defective. If it's determined
the fiber is OK then DPC or DMC Control or Power Supply PCB likely
defective, replace board.
3-3
Gas Supply Pressure
out of range. DPC has detected a pressure error, Check DPC status indicator for
specific problem.
3-4 Gas Control Purging
The time to purge depends on Lead Length, previous fluids used,
and current process fluids selected. Wait until finished.
3-5
Gas Control Protocol
Error
Verify Firmware revison for compatiblity with DMC and DPC
3-6 Reserved No information available; Contact customer service
3-7
Gas Control
sequencing error
Verify Firmware revison for compatiblity with DMC and DPC
3-8
Gas Control Type
Mismatch CCM must be Ultracut type with USB for use with Auto Gas Control
(DFC-3000)
3-9
Gas Control Command
fault
Verify Firmware revison for compatiblity with DMC and DPC;
Elctromagentic interference with Arc Starter; inspect grounding;
bonding; and isolation
3-10 DPC-fault Check DPC status indicator for specific problem
3-11 DPC valve control fault Check DPC status indicator for specific problem
3-12 DMC fault Check DMC status indicator for specific problem
CCM Status Code
Group 2 -- Plasma Power Supply
Group 3 -- Gas Controller Status & Protocol