Agilent Technologies 6028A Welding System User Manual


 
Installation 21
Figure 2-2. Power-Cord Plug Configurations
Agilent Models 6023A and 6028A.
Line voltage conversion is accomplished via three components; a two-section line select switch, line voltage jumper, and a
rear panel fuse. To convert the supply from one voltage to another, proceed as follows:
a. Unplug the power supply and wait 2 minutes for internal capacitors to discharge.
b. Remove the outside cover by removing the rear screw that holds the carrying strap, then carefully slide the cover to the
rear of the supply until it is clear. Do not remove the front carrying strap screw.
c. The line voltage select switch (S2) is located in the front left corner of the supply (see Figure 2-3). Use a small-blade
screwdriver to set the two switch sections to match the pattern silk-screened on p.c. main board as shown in Figure 2-3.
For example, to set switches for 120 V operation (as illustrated), move forward switch section so that its white slot is
toward front of supply and move rearward switch section so its white slot is toward rear of supply.
d. One end of W5 is soldered to motherboard; the other end has a female right-angle quick-connect terminal that fits onto
one of two terminals soldered to motherboard. For 100 V or 120 V operation, W5 must be connected to terminal closer
to center of supply; for 220 V or 240 V operation, W5 must be connected to terminal closer to side of supply. Be
certain that jumper is firmly mated with terminal on motherboard. Do not grip jumper insulation with pliers; either grip
jumper wire by hand or grip jumper terminal with pliers.
e. Check rating of fuse installed in rear-panel fuseholder. It should be 8 A for 100 or 120 Vac line voltages, or 4 A for
220 or 240 Vac line voltages. If necessary, replace the fuse with one of correct value. Do not use time-delay fuses.
8 AM, 250 Volt fuse; Agilent part number 2110-0383
4 AM, 250 Volt fuse; Agilent part number 2110-0055
f. Replace covers and clearly mark the supply with a tag or label indicating the correct line voltage and fuse to be used.
#8 Ring
Terminals
Option 841
8120-5572
Option 831, 8120-5573, 12 AWG unterminated
Option 843
8120-5571
Option 845
8120-5570
Option 846
8120-5565
Option 847
8120-5567
Option 848
8120-5569
Option 900
8120-1358
Option 901
8120-1369
Option 902
8120-1689
Option 903
8120-1348
standard
Option 904
2151-3498
plug only
Option 906
8120-2104
Option 833, 8120-5568, 1.5 mm2 unterminated
Option 834, 8120-5566, 10 AWG unterminated
Agilent 6010A, 6011A, 6012B,
HP 6023A, 6028A