ESAB Aristo Arc 4000i, Руководство по обслуживанию

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S0740 800 191/E080229/P78
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Fan control
The power source fans continue to run for 6.5 minutes after welding has stopped, and the
unit switches to energy--saving mode. They start again when welding restarts.
The fans run at reduced speed for welding currents up to 146 A, and at full speed for higher
currents.
Overheating protection
The power source has two thermal overload trips which operate if the internal temperature
becomes too high, interrupting the welding current and lighting the orange indicating lamp
on the front of the unit. They reset automatically when the temperature has fallen.
Cooling unit
Water connection (TIG welding)
The cooling unit is equipped with a detection system ELP ( E SAB L ogic P ump) which
checks that the water hoses are connected.
The power source On/Off switch must be in the “0” position (Off) when connecting a
water--cooled TIG torch.
If a water--cooled TIG torch is connected, the water pump starts automatically when the
main On/Off switch is turned to ”START” and/or when welding starts. After welding, the
pump continues to run for 6.5 minutes, and then switches to the energy--saving mode.
Function when welding
To start welding, the welder presses the welding gun trigger switch. The power source turns
on and starts the wire feed and the cooling water pump.
To stop welding, the welder releases the welding gun trigger switch. Welding ceases, but
the cooling water pump continues to run for 6.5 minutes, after which the unit switches to
energy--saving mode.
Water flow guard
The water flow guard interrupts the welding current in the event of loss of coolant, and
displays an error message on the control panel. The water flow guard is an accessory.
Remote control unit
The remote control unit must be a CAN based remote control unit or it must be connected
via a remote control adapter.
The power source and wire feed unit are set to remote control mode and buttons and dials
are blocked when the remote control is connected. Functions can only be adjusted via the
remote unit.
If the remote control unit is not to be used, the remote control unit must be disconnected
from the power source / wire feed unit, as otherwise it will remain in remote control mode.
For more information about the operation of the remote control unit, see the operating
instructions for the control panel.