Operation, B-3 4. arc control, Weld output terminals with flange nut – Lincoln Electric VANTAGE 500 (CE) IM894-B User Manual

Page 21: Ground stud, 14-pin connector, 6-pin connector, Weld terminals control switch, Wire feeder voltmeter switch, Vrd (voltage reduction device) indicator lights

Advertising
background image

B-3

OPERATION

B-3

4. ARC CONTROL

- The ARC CONTROL dial is active in the CV-

WIRE, CC-STICK and DOWNHILL PIPE modes, and has different

functions in these modes. This control is not active in the TIG and

ARC GOUGING mode.

CC-STICK mode: In this mode, the ARC CONTROL dial sets the

short circuit current (arc-force) during stick welding to adjust for a soft

or crisp arc. Increasing the dial from –10 (soft) to +10 (crisp) increas-

es the short circuit current and prevents sticking of the electrode to

the plate while welding. This can also increase spatter. It is recom-

mended that the ARC CONTROL be set to the minimum number with-

out electrode sticking. Start with a setting at 0.

DOWNHILL PIPE mode: In this mode, the ARC CONTROL dial sets

the short circuit current (arc-force) during stick welding to adjust for a

soft or a more forceful digging arc (crisp). Increasing the number from

–10 (soft) to +10 (crisp) increases the short circuit current which

results in a more forceful digging arc. Typically a forceful digging arc is

preferred for root and hot passes. A softer arc is preferred for fill and

cap passes where weld puddle control and deposition ("stacking" of

iron) are key to fast travel speeds. It is recommended that the ARC

CONTROL be set initially at 0.

CV-WIRE mode: In this mode, turning the ARC CONTROL clock wise

from –10 (soft) to +10 (crisp) changes the arc from soft and washed-in

to crisp and narrow. It acts as an inductance/pinch control. The proper

setting depends on the procedure and operator preference. Start with

a setting of 0.

5. WELD OUTPUT TERMINALS WITH FLANGE NUT-

Provides a connection point for the electrode and work cables.

6. GROUND STUD-

Provides a connection point for connect-

ing the machine case to earth ground.

7. 14-PIN CONNECTOR-

For attaching wire feeder control cables.

Includes contactor closure circuit, auto-sensing remote control circuit,

and 42V power. The remote control circuit operates the same as the

6 Pin Amphenol.

8. 6-PIN CONNECTOR-

For attaching optional remote control

equipment. Includes auto-sensing remote control circuit.

9. WELD TERMINALS CONTROL SWITCH-

In the WELD

TERMINALS ON position, the output is electrically hot all the time.

In the REMOTELY CONTROLLED position, the output is controlled

by a wire feeder or amptrol device, and is electrically off until a remote

switch is depressed.

10. WIRE FEEDER VOLTMETER SWITCH-

Matches the polarity of the wire feeder voltmeter to the polarity of the

electrode.

11. VRD (Voltage Reduction Device) INDICATOR

LIGHTS-

On the front panel of the VANTAGE® 500 (CE) are two

indicator lights. A red light when lit indicates

OCV(Open Circuit

Voltage) is equal to or

greater than

32V for (Codes 11298, 11299), 30V

for (Codes 11524, 11525, 11574, 11575)

and a green light when lit

indicates

OCV(Open Circuit Voltage)

is less than

32V for (Codes

11298, 11299), 30V for (Codes 11524, 11525, 11574, 11575)

.

The VRD “On/Off” switch inside the control panel must be “On” for

the VRD function to be active and the lights to be enabled. When

the machine is first started with VRD enabled, both lights will illumi-

nate for 5 seconds.

These lights monitor the

OCV(Open Circuit Voltage)

and weld voltage

at all times. In the CC-Stick mode when not welding the green light

will illuminate indicating that the VRD has reduced the OCV to less

than 32V. During welding the red light will illuminate whenever the

arc voltage is equal to or greater than 32V. This means that the red

and green light may alternate depending on the weld voltage. This is

normal operation.

If the red light remains illuminated when not welding in the CC-stick

mode, the VRD is not functioning properly. Please refer to your local

field service shop for service.

If the VRD is turned “On” and the lights don’t come “On”, refer to the

trouble shooting section.

TABLE B.1

VRD INDICATOR LIGHTS

MODE

VRD "ON"

VRD "OFF"

CC-STICK OCV

Green (OCV Reduced)

While

Red or Green

Welding

(Depends on Weld Voltage) *

CV-WIRE

OCV

Red (OCV Not Reduced)

Weld Terminals On

Red (OCV Not Reduced)

Weld Terminals Remotely Controlled

Gun Trigger Closed

Green (No OCV)

Weld Terminals Remotely Controlled

Gun Trigger Open

No Lights

While

Red or Green

Welding

(Depends on Weld Voltage) *

PIPE

OCV

Green (No Output)

While

Not Applicable (No Output)

Welding

ARC GOUGING OCV Green (No Output)

While

Not Applicable (No Output)

Welding

TIG

OCV

Green (Process is Low Voltage)

While

Green (Process is Low Voltage)

Welding

*

It is normal for the lights to alternate between colors while welding.

VANTAGE

®

500 (CE)

Advertising