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2. While this welding &
cutting equipment is
operated, the pilot
lamp is on, no output,
the built-in fan
unavailable.
3. While this welding &
cutting equipment is
operated, the built-in
fan functions, fault
indicator is off, no HF
electricity releasing,
the arc starting is
unavailable.
4. While this welding &
cutting equipment is
operated, the HF
electricity releasing is
available, and the
welding current output
is unavailable.
5. While is this welding &
cutting
equipment
operated,
the
indicator
is
off,
electricity
releasing,
and the arc starting
available.
and compensate it if necessary.
1. Possible misconnection with input of 380V, and
occurrence of over voltage protection status.
Reconnect with input of 220V, and restart.
2. Possible unstable input due to the un-available
input cable or possible connection unavailable
spells it's being of over-voltage protection status.
3. Frequently switching on and off of this welding
equipment in a short period leads this
equipment's being of over-voltage protection.
Switch off this welding machine and wait for at
least 3 minutes, then restart this welding
equipment.
4. Possible unavailability of the connection of switch
and bottom PCB. Reconnect it.
5. The 24 V relay of bottom PCB is possibly
damaged. Replace it if necessary.
1. The normal voltage of positive and negative pole
of board VH-07 should be DC 380V.
1.1 Possible short circuit occurs, and possible
unavailability of connection of silicon bridge
with the PCB.
1 .2 Possible electricity leakage of capacitors,
replace them if necessary.
2. A green light indicator of secondary power supply
of MOS PCB should be on. Otherwise, it indicates
that the secondary power supply is not
functioning. Check the connection whether is
available. If fault cannot be rectified, please
contact the supplier for further advice.
3. Possible unavailability of connection inside this
welding equipment occurs. Check and reconnect if
necessary.
4. Possible malfunction of control circuit occurs.
Check otherwise contact the supplier for further
advice. Possible damage of the welding torch.
Replace it if necessary.
1. Possible disconnection of welding torch cable.
2. Possible disconnection of earth cable, or
unavailability of connection of the earth cable and
work piece.
3. The connection between positive output terminal
or the gas or electricity output terminal and this
welding equipment is possibly unavailable.
Reconnect them if necessary.
1. The cable connection between the transformer of
is
arc starting and power PCB is possibly
fault
unavailable. Check and reconnect it.
no
2. Possible oxidization of electricity releasing parts
occurs. In another possible case, the distance is
larger than the maximum distance available.
Remove the oxidization of the electricity releasing
parts and adjust the distance of the electricity
releasing parts to range of 1mm.
3. Possible damage to MMA/TIG switch. Replace
them if necessary.
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