Red-D-Arc FX360XL Operator's Manual page 24

FX360XL OPERATION
Thermal Light
This status light indicates when the power source has
been driven into thermal overload. If the output
terminals were "ON", the output will be turned back on once the
unit cools down to an acceptable temperature level. If the unit was
operating in the "REMOTE" mode, the trigger will need to be
opened before or after the thermal has cleared and closed after
the machine has cooled down to an acceptable temperature to re-
establish output.
VRD Lights
There are two indicator lights on the case front of the
FX360XL above the Voltage display to indicate the
status of VRD operation. As shipped, the VRD function is disabled.
VRD is enabled by setting dip switch number 5 to the on position
on the User Interface P.C. board. When VRD is active, a green light
indicates the open circuit voltage is less than 35V peak, a red light
indicates the OCV is at or above 35V peak, Both lights will
illuminate for 5 seconds upon power up. The behavior of the VRD
lights is listed in the table below. While the VRD lights are always
active when VRD has been enabled, VRD applies to the constant
current modes of operation. Only in these modes will the OCV
been reduced.
TABLE B.1
* It is normal for the lights to alternate between colors while welding.
B-4