OM-257 675 Page 30
8-9. Measuring Input Capacitor Voltage
!
Turn Off welding power
source, and disconnect
input power.
!
Significant DC voltage can
remain on capacitors after
unit is Off. Always check the
voltage as shown to be sure
the input capacitors have
discharged before working
on unit.
Remove cover
1
Power Interconnect Board
PC2
2
Voltmeter
Measure the DC voltage across the
+ bus terminal and
−
bus terminal on
PC2 as shown until voltage drops to
near 0 (zero) volts. Measure input
capacitor voltage on both inverter
assemblies before proceeding.
3. Typical Bleeder Resistor
An example of a typical bleeder
resistor is shown on this page.
Proceed with job inside unit.
Reinstall cover when finished.
Tools Needed:
5/16 in.
802 985 / Ref. 249 744-A
1
2
+ lead to left bus terminal,
−
lead to right bus terminal
1
2
+ lead to left bus terminal,
−
lead to right bus terminal
3
Typical Bleeder
Resistor
#16 AWG 1000 volts DC
insulation rating, approx 3 in
(76 mm) leads
25 to 1000 ohm, 5 watt resistor
Содержание Auto-Axcess E Digital
Страница 6: ......
Страница 16: ...OM 257 675 Page 10...
Страница 18: ...OM 257 675 Page 12 Notes...
Страница 22: ...OM 257 675 Page 16 Notes...
Страница 26: ...OM 257 675 Page 20 Notes...
Страница 30: ...OM 257 675 Page 24 Notes...
Страница 37: ...General OM 257 675 Page 31 Notes...
Страница 98: ...Safety OM 257 675 Page 92 Notes...
Страница 115: ...Trouble OM 257 675 Page 109 Notes...
Страница 120: ...OM 257 675 Page 114 Figure 15 2 Circuit Diagram For Auto Axcess E 300 Digital Welding Power Source Part 2 Of 2...
Страница 121: ...Circuits OM 257 675 Page 115 257 679 A Part 2 Of 2...
Страница 122: ...OM 257 675 Page 116 Figure 15 3 Circuit Diagram For Auto Axcess E 450 Digital Welding Power Source Part 1 Of 2...
Страница 123: ...Circuits OM 257 675 Page 117 257 678 A Part 1 Of 2...
Страница 124: ...OM 257 675 Page 118 Figure 15 4 Circuit Diagram For Auto Axcess E 450 Digital Welding Power Source Part 2 Of 2...
Страница 125: ...Circuits OM 257 675 Page 119 257 678 A Part 2 Of 2...
Страница 126: ...OM 257 675 Page 120 Figure 15 5 Circuit Diagram For Auto Axcess E 675 Digital Welding Power Source Part 1 Of 2...
Страница 127: ...Circuits OM 257 675 Page 121 257 676 A Part 1 Of 2...
Страница 128: ...OM 257 675 Page 122 Figure 15 6 Circuit Diagram For Auto Axcess E 675 Digital Welding Power Source Part 2 Of 2...
Страница 129: ...Circuits OM 257 675 Page 123 257 676 A Part 2 Of 2...
Страница 130: ...OM 257 675 Page 124 Figure 15 7 Circuit Diagram For Axcess E Digital Module...
Страница 131: ...Circuits OM 257 675 Page 125 257 680 A...
Страница 132: ...OM 257 675 Page 126 Figure 15 8 Circuit Diagram For Motor And Digital I O Interface...
Страница 133: ...Circuits OM 257 675 Page 127 258 246 A...
Страница 143: ...E450 Parts OM 257 675 Page 137 Notes...
Страница 153: ...E675 Parts OM 257 675 Page 147 Notes...