Lincoln Electric IM587-B manual Acceleration Selection, Digital Memory Voltmeter, Security Mode

RUN-IN

VOLTS / WFS

B-8 OPERATION B-8

CONTROL

Control Select key - enables operator to

choose Run-In procedure as indicated by the light turning on. When light is on, the settings of Run-In Wire Feed Speed and Voltage are dis- played. After Weld procedure is set, Run-in pro- cedure should be set to optimize arc starting.

GAS PURGE

CONTROL

Acceleration Selection

To provide optimum starting of various processes and procedures, the wire feed acceleration of the LN-10 can be set to five lev- els; 1 thru 5, for each feeder and procedure. 1 is the slowest acceleration and 5 is the fastest. (Factory set to 4.)

Speed encoder knob can adjust run-in speed between min. rated speed and up to the procedure Weld speed setting. Run-in speed setting can not exceed Weld speed

To change acceleration hold the Gas Purge Key closed, then press the Control key. The top (Voltage) display shows “Acc” indicating acceleration setting, 1 thru 5, is displayed on the bot-

setting. Run-in speed setting of 100 IPM or less is recommend- ed for optimum starting. Factory setting is near min. rated speed.

If set below minimum rated speed “- -” will show on the WFS display, indicating Run-in speed is set to match weld speed set- ting.

The Run-in (strike) voltage can be set above or below the Weld voltage setting up to a max of 60 V. If set below a min of 10 V, the Run-In (strike) voltage display shows “---”, indicating the Run-In Voltage is set to match the weld voltage setting. Also, the difference between Run-in voltage and Weld voltage set- tings is maintained automatically if the Weld voltage setting is changed, so the run-in voltage encoder knob does not need to be changed to follow the Weld voltage setting.

When trigger is closed (and preflow time is over) the wire feeds at Run-In speed and volts until the welding arc strikes, which causes the feed speed and volts to change to Weld settings.

If the arc does not strike within about 2 seconds, the Run-In speed automatically changes to Weld speed to permit “Hot” feeding at higher speed setting for loading wire.

Pressing control key again, or closing the gun trigger, shuts off light indicating knob settings and displays are returned to Weld Voltage and Wire Feed Speed.

Digital “Memory” Voltmeter

When the welding gun trigger is activated, the top LN-10 display reads actual welding voltage from 0.0 to 60.0 VDC with auto- matic polarity indication for positive (+) or negative (-) electrode.

If actual voltage drops below 8.0 volts for over 0.8 sec when the trigger is closed, Loss of Voltage Sense Shutdown will occur. See “Loss of Voltage Sense Shutdown” in this section.

The last welding voltage monitored at the end of the weld is dis- played for 5 seconds after the weld has stopped, as indicated by a 5 second “blinking” display. This allows checking actual weld voltage after weld has stopped.

Any keypad or trigger operation will interrupt the 5 second memory display.

tom (Speed) display. Use the speed encoder knob to change setting from 1 thru 5.

To exit this function, and enter the acceleration setting into the procedure memory, press both keys again or close the trigger.

Security Mode

Security mode is used to capture timer, acceleration, and control selections and settings, then to disable these selections until security mode is deactivated. Encoder knob setting changes of cold feed, weld speed and weld voltage are not disabled.

Security mode is activated, or deactivated, by shutting off the input power to the LN-10 with all Timer and Control settings as desired for both procedures for both Feeders. Then setting S2 DIP switch 3 inside the LN-10 Control Box ON or OFF and restor- ing input power (See “Setting DIP Switches” in this section).

When activated, the Timer and Control selections no longer light, but function with the captured settings. All other keys and encoder knob controls function normally.

LN-10