Lincoln Electric IM889-A manual Wire Feeder Voltmeter Switch, Table B.1

Models: IM889-A

1 49
Download 49 pages 34.1 Kb
Page 21
Image 21
Provides a connection point for the electrode and

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) increases the short circuit current and prevents sticking of the electrode to the plate while welding. This can also increase spatter. It is recommended that the ARC CONTROL be set to the minimum number without elec- trode 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 weld- ing 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 dig- ging arc. Typically a forceful digging arc is preferred for root and hot passes. A softer arc is preferred for fill and cap pass- es 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 induc- tance/pinch control. The proper setting depends on the proce- dure and operator preference. Start with a setting of 0.

5. WELD OUTPUT TERMINALS WITH FLANGE NUT-

work cables.

6.GROUND STUD- Provides a connection point for connecting 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 con- trol 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 400 (CE) are two indicator lights. A red light when lit indicates OCV(Open Circuit Voltage) is equal to or greater than

(32V￿), (30V￿ ) and a green light when lit indicates OCV(Open Circuit Voltage) is less than (32V￿), (30V￿ ).

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 illuminate 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￿), (30V￿ ). During weld- ing the red light will illuminate whenever the arc voltage is

equal to or greater than (32V￿), (30V￿ ). 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.

￿For Codes 11296, 11297.

￿For Codes 11463, 11464.

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® 400 (CE)

Page 21
Image 21
Lincoln Electric IM889-A manual Wire Feeder Voltmeter Switch, Table B.1