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11. APPLIED FUNCTION (continued)
1) dAIHEn
Display
If “dAI” and “HEn” in the displays blink, it indicates the “Torch switch off state waiting“.
When turning on the power switch, the displays on the front panel shows “dAI” and “HEn” for one
sec., then the welding power source becomes operable. But, if the torch switch remains on, the
safety circuit will function, the welding power source will hold a halt condition, then the WARNING
lamp and "dAI” and “HEn" shown in the displays will blink. In this case, turn off the torch switch to
reset the safety circuit and make the welding power source operable.
2) E-000
Display
If “ E-“ and “000” in the displays blink, it indicates the “Operation Stop “.
When disconnecting the wiring of the STOP terminals (Operation Stop terminals: wiring number
213) on the 12P external connection terminal block (TM1), “E-“ and “000” in the displays blink and
the welding power source stops. In this case, after turning off the power switch and eliminating the
possible causes of the stoppage of the welding power source, short-circuit the STOP terminals and
turn on the power switch to cancel the error.
Note:
When canceling the operation stop, it is also possible to solve the error only by short-
circuiting the Operation Stop terminals again without starting the welding power source up
again. Refer to Section 10.1.17, “Internal Functions”.
3) E-100
Display
If “E-“ and “ 100” in the displays blink, it indicates the " Control power supply error ".
If there is an error in the control power source, the warning lamp will light up and “E-“ and “100” in
the displays will blink, then the welding power source will automatically stop. To cancel the error,
start the machine up again.
4) E-200
Display
If “E-“ and “200” in the displays blink, it indicates the " Primary/Secondary current detection error ".
If an error is detected in the current detecting area, “E-“ and “200” in the displays will blink and the
welding power source will stop automatically. In this case, turn off the power switch, then turn it on
again after making sure that CN8 and CN9 on the printed circuit board P10535U are surely
connected.
5) E-300
Display
If “E-“ and “300” in the displays blink, it indicates the "Thermal overload"
If the actual duty cycle exceeds the rated duty cycle of or temperature inside the welding power
source increases, "E-“ and “300" will blink and the welding power source will stop automatically. At
this time, the temperature lamp ( ) also will be lit. In this case, wait more than 10 minutes with the
power switch pressed and the fan turned. When restart welding, turn off the power switch and
restore the system after lowering the duty cycle and the welding current. Such action will cancel the
error. Repetitious welding without more than ten-minute rest may lead to damage to the welding
machine. Refer to Section 3.1, “Rated Duty Cycle” for the rated duty cycle of the welding power
source.
6)
E-500 Display
If “E-“ and “500” in the displays blink, it indicates the “Lack of water pressure”.
If no cooling water is going through the water-cooled hose or shortage of water pressure is
occurred, the WARNING lamp will light up, “E-“ and “500” in the display will blink, then the welding
machine will automatically stop. In this case, check to make sure that the water-cooled hose does
not leak water and that adequate cooling water is going through the hose. When using an air-
cooled torch, make sure that the TORCH lamp on the front panel is OFF (AIR).