Tweco 300 DC Arcmaster - Manual (Page 65)

ARCMASTER 300 ACDCR
February 22, 2006 12-3
E82 error code
displayed
Rated voltage
selection circuit
abnormality.
E83 error code
displayed
CPU checks mains
supply (input)
voltage when the
on/off switch on
rear panel of
machine is turned
ON.
E85 error code
displayed
Pre-charge
abnormality.
E93 error code
displayed
Memory chip
(EEPROM) on
control PCB can not
read/write weld
parameters.
9 The Primary supply
(input) voltage
fluctuates and is not
stable.
10 The Primary supply
(input) voltage
fluctuates and is not
stable.
Due to malfunction
inside the Welding
Power Source,
primary capacitors
are not charging
Have an Accredited
Thermal Arc Service
Agent or a qualified
electrician check the
Mains voltage. No weld current is
available. Buzzer
sounds constantly.
Switch machine off
then on to reset E82
Have an Accredited
Thermal Arc Service
Agent check
connector plug on
input PCB and the
Mains voltage No weld current is
available. Buzzer
sounds constantly.
Switch machine off
then on to reset E83
error.
Have an Accredited
Thermal Arc Service
Agent service the
machine No weld current is
available. Buzzer
sounds constantly.
Switch machine off
then on to reset E85
12 Memory chip
(EEPROM) error. Have an Accredited
Thermal Arc Service
Agent check the
control PCB. Weld current
ceases. Buzzer
sounds constantly.
Switch machine off.
11
Table 12-1 (continued): Power Source Error Codes