Connecting Input Power - Miller Electric Invision 456MP Owner's Manual

3-12. Connecting Input Power

3
Connections For
Standard Model
4
L1 L2
3
Connections For
Models With Optional
Ground Current Sensor
OM-193 267 Page 18
L1 L2 L3
1
2
Or
1
2
L3
= GND/PE
!
Always connect grounding
conductor first.
Tools Needed:
!
Turn Off welding power
source, and check voltage
on input capacitors accord-
ing to Section 6-3 before
proceeding.
1 Strain Relief Connector Clamp
Obtain and install proper connector.
2 Input And Grounding
Conductors
3 Contactor W1
Select size and length using Sec-
tion 3-10. Connect as shown in
illustration.
For Models With
Ground Current Sensor:
4 Ground Current Sensor
When cutting input and ground con-
ductors to length, ground conductor
must be 26 inches (660 mm) long to
wrap around ground current sen-
sor. Note that ground conductor
must be insulated between strain
relief and ground terminal.
Insert input and grounding conduc-
tors through strain relief. Route
grounding conductor through reed
5 switch from right side of unit, under
switch, and through reed switch
again (two turns total) before con-
necting to ground terminal.
For All Models:
5 Line Disconnect Device
See Section 3-10.
L1
Reinstall right side panel.
L2
L3
5/16 in
801 535-B / 801 822-A
Optional