Function Explanations - ESAB ESABMig 405 Instruction Manual

GB
6.2

Function explanations

6.2.1 Start
When switched on, indicating lamps are checked for 2 seconds. Normally, if the
machine is not overheated, it should start to work in idle mode, which is indicated by
blinking of the supply–ON lamp. The fan and the coolant pump are stopped.
The fan starts from the first start of welding. The coolant pump starts at the same
moment, if it is switched on by means of either the ELP switch on the wire feeder,
or the pump supply switch on the power source.
6.2.2 Overheating protection
The power source has 2–step control of fan speed and overheating protection.
If temperature crosses the threshold point, the fan starts to operate with increased
speed. If the internal temperature becomes too high, the welding is interrupted and
disabled. This state is indicated by permanent lighting of the orange indicating lamp
on the front of the unit. It resets automatically when the temperature falls down.
6.2.3 Water connection
The ESABFeed has a sensor ELP, ESAB Logic Pump, which senses whether the
water hoses of the welding gun are connected. When a water–cooled welding gun is
connected, the water pump is active. For the ESABFeeds the pump supply switch on
the power source should be left in position "0/ELP".
It is recommended to switch the power source off by means of the mains switch
ON/OFF for connecting the cooling water hoses to/from the ESABFeed wire feed
unit.
The pump supply switch must be in position "I" exclusively for other types of wire
feeders, when a water–cooled welding gun is used. When a self–cooled welding gun
is used the pump switch must be in position "ELP/0".
Note, if a water–cooled welding gun is used when the pump is inactive, the welding
gun might be damaged.
6.2.4 Water flow guard
The water flow guard interrupts and disables the welding in the event of loss of
coolant. This state is indicated by blinking of the orange indicating lamp on the front
of the power source. If there is a lack of coolant flow, after 1 min the pump is
switched off and latched in this state. The pump restarts from this state along with
starting of welding.
The water flow guard is an accessory. Ordering number see on page 203.
6.2.5 Idle mode
The machine has an idle mode. The fun is switched off 5 min after the last welding
or after 5 min of work with decreased speed without welding. The pump is switched
off 3 min after the last welding. When both fan and pump are switched off the
power–supply lamp on the front panel is blinking.
6.2.6 Inductance
Higher inductance produces a more flowing weld and fewer spatters. Lower
inductance produces a harsher sound and a stable, concentrated arc.
405,505e
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