Controls And Operational Features - Lincoln Electric COOL ARC 24 Operator's Manual

Controls and Operational Features

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Figure 3
1. Power Indicator Light: This lamp will illuminate when
the pump and internal fan are on. The light does not
indicate the COOL ARC
power source.
2. Flow Sensor Switch: The COOL ARC
equipped with a flow sensor that triggers an error code
to the machine to protect the TIG Torch from over-
heating when inadequate coolant flow is detected
through the flow sensor. The Error Code fault (Error
11) could indicate a possible kink in the torch lines,
damage and/or a leak in the TIG Torch coolant lines,
or signal the need to use a TIG Torch that is of a
higher amperage capacity and rating. The flow sensor
can be turned off 'O' or on 'I'. The default position is on
when first powered on out of the box. When in 'O' off
position, the flow sensor is inactive: in this condition
the missing coolant flow is not detected.
WARNING
Incorporated into the cooler is an automatic flow
sensor to detect low or no coolant flow. A low or no
flow condition will
automatically stop to protect the torch.
3. Reservoir for Coolant with Cap: The translucent
reservoir enables control of volume of the coolant. A
tank filter to catch 400um dust material is located in
opening tank. See Maintenance section for more
details.
4. Quick Connect Coupling: Coolant outlet (supplies
cool coolant to the torch/gun).
5. Quick Connect Coupling: Coolant inlet (takes warm
coolant from torch/gun).
6. Minimum and maximum Liquid Level: The minimum
recommended liquid level is 1,51 liters.
7. Airflow Slots: Enable proper circulation of air cooling
English
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® 24 is being supplied by the
® 24 comes
cause welding output
10
to
8. Power Lead with 9-pin connector. Table below
indicates the Pin-out and description:
Pin # Signal name
1 COM
2 +15V/1
3 Coolant Error
4 Presence
5 NC
6 VBUS
7 NC
8 ON_OFF
9 EARTH
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7
Figure 4
Figure 5
Description
Reference
Aux. power supply
Coolant flow error
To indicate to Power
generator CA24 is active
Not used
Power supply 390Vdc
Not used
To enable pump and cooling
Earth ground
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9
8
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