Tweco 300 S Arcmaster - Manual (Page 47)

ARCMASTER ® 300 S
March 31, 2006 12-1
SECTION 12:
POWER SOURCE ERROR CODES
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E01 error code displayed
A
The Welding Power Source’s duty cycle has been exceeded.
A
Let Power Source cool down then keep within its duty cycle.
Weld current ceases.
Temperature sensor TH1 (protects IGBTs) is greater than 80ºC for
B
Fan ceases to operate.
B
Have an Accredited Thermal Arc Service Agent investigate
Buzzer sounds constantly.
C
Air flow is restricted by vents being blocked
C
Unblock vents then let Power Source cool down.
Fan operates at max speed. E01 resets when TH1 decreases to 70ºC for about 30 seconds.
E02 error code displayed
A
The Welding Power Source’s duty cycle has been exceeded.
A
Let Power Source cool down then keep within its duty cycle.
Weld current ceases.
Temperature sensor TH2 (protects secondary diodes) is greater than 80ºC for about 1 second
B
Fan ceases to operate.
B
Have an Accredited Thermal Arc Service Agent investigate
Buzzer sounds constantly.
C
Air flow is restricted by vents being blocked
C
Unblock vents then let Power Source cool down.
Fan operates at max speed. E02 resets when TH1 decreases to 70ºC for about 30 seconds.
E03 error code displayed
A
Primary current is too high because welding arc is too long.
A
Reduce length of welding arc.
Weld current ceases.
Primary (input) current too high
B
Mains supply voltage is more than 10% below nominal voltage
B
Have an Accredited Thermal Arc Service Agent or a qualified electrician check for low Mains voltage.
Buzzer sounds constantly. Switch machine off then on to reset E03 error.
E11 error code displayed
Weld current ceases.
Over Primary supply (input) voltage at primary capacitors is exceeded for one second
Buzzer sounds constantly. Error code E11 automatically will reset when the voltage reduces.
Primary supply voltage is greater than the nominal voltage plus 10%
Have an Accredited Thermal Arc Service Agent or a qualified electrician check the Primary voltage.
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