Lincoln Electric IM10124 RED-D-ARC FX450 - Manual (Page 20)

B-7 OPERATION B-7
FX450 (RED-D-ARC)
INTERNAL CONTROLS - ENABLING VRD ™
Internal Controls Description
The Control PC Board has one bank of Dip Switches.
As shipped from the factory VRD™ mode is disabled
and the Dip Switches are all in the “off” position.
To Enter VRD™ Mode (VRD™ Enabled)
a. For 380V input: Switch #5 in the “ON”
Position.
b. For 460V input: Switch #6 in the “ON”
Position.
c. For 575V input: Switch #5 and #6 in the
“ON” Position
1 2 3 4 5 6 7 8
ON
OFF
DIP SWITCH LOCATION
CONTROL PCB
CONTROL PCB LOCATION
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
FIGURE B.3