ESAB MultiPower 460 Pulse Manual de Instruções descarregar pdf (Página 47)

SECTION 5 MAINTENANCE

Figure 5-4. No Weld Power

(STICK Position)

Figure 5-5. Meter Display is Blank

No weld power

(Stick position)

Power Light is On

Verify

Weld process in “Stick”

Panel-remote in “Panel”

Standard-Pulse in “Standard

Is voltage at

OTB+ to OTB- =

75 to 80 VDC

IS voltage at

C1 + to C1 -

= 80 VDC

Check external

connections and

components

D1,2,3,4,5,6,

good?

Replace if failed

(See Para. 5.H)

Check and repair

wiring

Replace failed

diodes

Is Q1,Q2,Q3

good?

Replace if failed

(See Para. 5.G)

Is gating signal

(15 VAC) available

at P1-6 to P1-5

(PCB3)?

Yes

Replace Main

Control Board

PCB1

Is gating signal

(15 VAC) available

at P6-3 to P6-2

(PCB3)?

Meter Display is

blank

Replace Meter

Board (PCB2)

Is the Power

LED on

Check and repair

wiring

Is voltage at

(PCB1

P1-7 to P7-2

= 28VDC

Is voltage at

(PCB2)

P1-1 to P1-2

= 28VDC

Check and repair

wiring

Is voltage at

(PCB1)

P1-3 to P1-4

= 20 VAC

Replace Main

Board (PCB1)

Replace Meter

Board (PCB2)

Yes

Yes Yes

Yes

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ESAB MultiPower 460 Pulse Manual de Instruções Página 47

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