B-37

OPERATION

B-37

 

 

 

LIMITS

Limits allow the welder to adjust the welding proce- dure only within a defined range.

Each user memory may have a different set of limits. For example, memory 1 can be set to limit the WFS to 200 through 300 in/min, and memory 2 can be set to limit the WFS to 275 through 310 in/min, while memo- ry 3 may not have any WFS limits.

Parameters are always constrained by machine limits. When memory limits are enabled, the parameter will flash whenever an attempt is made to exceed the memory limit value. The parameter will not flash if an attempt is made to exceed the machine limit.

The system machine limits are:

Parameter

Range

 

Units

Wire Feed Speed

Weld mode and wire

in/min

 

feeder dependent.

 

 

 

 

Voltage

Weld mode dependent

Volts

 

 

 

Trim

0.50 to 1.50

--

 

 

 

Arc Control

-10.0 to 10.0

Weld mode dependent

 

 

 

 

Preflow

0.0 to 2.5

 

Seconds

 

 

 

 

Start Time

0.0 to 10.0

 

Seconds

 

 

 

Run-In WFS

Off, 50 to 150

in/min

 

 

 

 

Crater Time

0.0 to 10.0

 

Seconds

 

 

 

Burnback Time

0.00 to 0.25

Seconds

 

 

 

 

Postflow Time

0.0 to 10.0

 

Seconds

 

 

 

 

Limits may be set for:

 

 

• Wire Feed Speed/Amperage

• Start Time

• Voltage/Trim

 

• Burnback Time

• Arc Control

 

• Crater Wire Feed Speed

• Preflow Time

 

• Crater Voltage/Trim

Run-In Speed

 

• Crater Time

• Start Wire Feed Speed

• Postflow Time

• Start Voltage/Trim

 

 

Weld modes cannot be selected through the Limits Setup memu, and must be chosen and saved to mem- ory before entering the Limits Setup Menu.

Set Limits:

Press 5 seconds

A GUN B

1 2 3 4

5 6 7 8

To set limits, press the desired memory button 1-8 and hold for 5 seconds. Release the memory button when the LED begins to blink rapidly and the MSP4 displays "Memory X Set Limits" as shown below.

MSP4 DISPLAY

Memory 2

Set Limits

WELD MODE

START OPTIONS

ARC CONTROL

END OPTIONS

 

SET

POWER FEED™ 25M

Page 53
Image 53
Lincoln Electric IM892-C manual Memory Set Limits