Tweco 400 MSTP Arcmaster - Manual (Page 70)

64
11.0 POWER SOURCE ERROR CODES
Description Possible Cause Remedy Remarks
1 E01 error code displayed
Temperature sensor TH1
(protects IGBTs) is greater
than 80ºC for about
1 second.
A
B
C
The Welding Power
Source’s duty cycle has
been exceeded.
Fan ceases to operate.
Air flow is restricted by
vents being blocked.
A
B
C
Let Power Source cool
down then keep within
its duty cycle.
Have an accredited
Thermal Arc Service
Agent investigate.
Unblock vents then let
Power Source cool
down.
Weld current ceases.
Buzzer sounds constantly.
Fan operates at max speed.
E01 resets when TH1
decreases
to 70ºC for about 30
seconds.
2 E02 error code displayed
Temperature sensor TH2
(protects secondary diodes) is
greater than
80ºC for about 1 second.
A
B
C
The Welding Power
Source’s duty cycle has
been exceeded.
Fan ceases to operate.
Air flow is restricted by
vents being blocked.
A
B
C
Let Power Source cool
down then keep within
its duty cycle.
Have an accredited
Thermal Arc Service
Agent investigate.
Unblock vents then let
Power Source cool
down.
Weld current ceases.
Buzzer sounds constantly.
Fan operates at max speed.
E02 resets when TH1
decreases
to 70ºC for about 30
seconds.
3 E03 error code displayed
Primary (input) current too
high.
A
B
Primary current is too
high because welding
arc is
too long.
Mains supply voltage is
more than 10% below
nominal voltage.
A
B
Reduce length of
welding arc.
Have an accredited
Thermal Arc Service
Agent or a qualified
electrician check for low
Mains voltage.
Weld current ceases.
Buzzer sounds constantly.
Switch machine OFF then
ON
to reset E03 error.
4 E11 error code displayed
Over Primary supply (input)
voltage
at primary capacitors is
exceeded for
one second.
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. Weld current ceases.
Buzzer sounds constantly.
Error code E11
automatically will reset
when the voltage reduces.
5 E14 error code displayed
Under mains supply (input)
voltage warning primary
capacitors is reduced for one
second.
Mains supply voltage is
less than the nominal
operating voltage less
10%.
Have an accredited
Thermal Arc Service
Agent
or a qualified electrician
check the Mains
voltage. Weld current available.
Buzzer sounds
intermittently.
Error code E14
automatically will reset
when the voltage
increases.