Yeswelder CUT-65DS PRO, Руководство пользователя, Страница: 27 / 28

TROUBLESHOOTING
The abnormity indicator on the front panel would illuminate in case Ofany failures inside the cutting machine
Malfunction Phenomena
The yellow light next to the input voltage is on
(yellow light indicates undervoltage)
When the machine's digital display reads "E-
5"
The absence of arc maintenance and ignition
in the machine
The machine fails to power up
The machine maintains an arc and ignites but
cannot cut effectively
ERROR CODES AND SOLUTIONS
Cause and Solution
Employ a multimeter to gauge the DC voltage input. Should
the input voltage be deemed appropriate, proceed with pow
ering down and restarting the device to ascertain its opera-
tional status.
Inspect whether the external pressure reduction valve is
open and verify the internal solenoid valve's functionality
Utilize the multimeter set to DC voltage to measure the no-
load voltage of the device, thereby assessing the arc main-
tenance relays performance. This relay should engage
upon startup and disengage upon shutdown. Ensure the in
put voltage falls within the acceptable range and note that
the solenoid valve operates optimally at an air pressure of
0.8 MPA; pressures exceeding this threshold may result in
malfunction.
Confirm the normalcy of the input voltage, the functionality
of the power switch, and scrutinize the machine's internal
wiring for any signs of loosening
Using a clamp meter set to the DC current range, clamp it
onto the ground clamp and monitor the current. An absence
of current might suggest an internal circuit issue or a failure
of the reed switch tasked with current detection. Deforma-
tions in the bracket above the nozzle or excessive distance
between the cutting tip and the workpiece can also prevent
proper cutting
E-3
When the internal components Of the cutting machine are damaged, the warning indicator
light will light up and the air pressure display screen will display E-l
When the operating temperature of the IGBT is too high, the gas pressure display: E-3.
When turned on without air pressure, the gas pressure display E-5
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