ESAB EPP-362 - Help Codes ContD

43
SECTION 6 TROUBLESHOOTING
17 IGBT DRIVER ERROR IGBT driver board error.
18 CUT/MARK VOLTAGE
TOO LOW
Output voltage fell below 70 volts dur-
ing cutting or below 40 volts during
marking.
During cutting/marking, the output voltage dropped below
threshold limits. Check for short in the torch cable or torch colli-
sion into plate or short between electrode and nozzle.
19 SLAVE P/S NOT DE-
TECTED
Master requested to engage slave power
supply but slave is not present.
Control board (PCB1) is looking for slave power supply and can-
not locate one.
20 SHORTED IGBT Output voltage detected before start
signal issued or PWM engaged.
Output voltage detected during start-up of power source before
start signal or PWM signal issued. This could be due to bad IGBTs
or driver board. Check the IGBTs and gate pulse connections on
the driver board.
21 MAIN CONTACTOR
FAULT
Main contactor failed to engage or
disengage.
After bus is pre-charged to the threshold limit, bus charger
contactor (K2) disengages and main contactor (K1) engages to
charge the bus to it’s full potential failed to do so or disengages
to shutdown the bus after 5 mins of idle condition will result
in this error. Check for faulty input fuses, main contactor (K1)
contacts failure, and main contactor relay (RB1-2).
22 CURRENT SENSOR
ERROR
Work current is greater than Electrode
current plus threshold limit.
Work (HS2) current is greater than Electrode (HS1) current above
the allowed threshold. This could be due to bad sensor. Check
the hall sensors and their connection to the control board
(PCB1).
23 PS ENABLE ERROR Power Supply Enable signal is interrupt-
ed, please check the E-STOP circuit.
The power supply signal that enables the power source is inter-
rupted. Check the CNC/Process controller E-STOP chain.
24 SPI COMMUNICATION
FAILURE
SPI communication is lost between Main
and Servo micro. Restart the machine
if still doesn’t clear, replace the control
board.
The main micro (U19) and servo micro (U17) on the control
board (PCB1) communicate via SPI protocol, if any data failed
to transfer between the micros this error is active. This error
requires the reset of power to the power supply. If the error isn’t
cleared after the reset of power then contact ESAB’s service
department.
25 EEPROM FAILURE EEPROM Failed, replace Control Board. When writing or reading operation failed between main micro
(U19) and EEPROM (U16), this error is active. Please recycle
the power to the power source, if still doesn’t get cleared then
contact ESAB’s service department.
26 SLAVE POWER SUPPLY
FAULT
Error detected in slave power supply
30 SERVO FAULT Servo has fault. Servo has detected the current above the requested current,
check hall sensors and restart the plasma unit.
31 LOW COOLANT FLOW
ERROR
Coolant ow is too low to start the
process.
Coolant ow rate is less than 0.3 GPM, please check for the leaks,
faulty sensor.
32 HIGH COOLANT FLOW
ERROR
Coolant ow is very high. Coolant ow rate is greater than 2.5 GPM, please check for the
faulty sensor, coolant connections.
33 WATCHDOG ERROR CAN Communication error CAN communication between power source and CNC/Process
Controller is lost. Check for the CAN cable connection, faulty
cable.
34 IGNITION/ARC LOST Ignition/Arc lost in dwell state immedi-
ately after it red once.
After the arc is established, it lost before stabilizing in the
DWELL state. Check the consumables, gas ows, height be-
tween torch and plate.
35 NO DRIVER BOARD Driver board connection lost or driver
board fault.
If the connection between Driver board (PCB2) and Control
board (PCB1) is lost, this error is active. Check the ribbon cable
connections between J12 or J13 on PCB1 and J2 on PCB2.
36 HIGH ARC VOLTAGE or
LOW CUT CURRENT
Arc lost during cutting due to increase in
arc voltage or decrease in current.
If the height control is blocked or not working there could be a
possibility of losing the arc due to increase in arc voltage or de-
crease in the current. Please check the level of the plate, height
control connections, part program speed.
37 CNC START SIGNAL
ERROR
Start signal is still present after the cut is
nished or error interrupted the process.
Please check the communication cable or start signal relay on
the CNC.
38 COOLANT LEVEL ERROR Coolant level is below threshold. Please make sure there is enough coolant in the tank.
6.2 Help Codes cont’d