Lincoln Electric IM559 manual Timer/Crater Select key enables

B-3 OPERATION B-3

			Timer/Crater Select - key enables
PREFLOW	POSTFLOW		operator to choose crater speed, spot
1	2		or gas timers as indicated by the appro-
			priate light. Pressing key causes lights
	CRATER to sequence (left to right, top to bottom)
			starting from the current indicated posi-
		SPOT tion. Any parameter not available in the
			mode selected is skipped over. If a
			function is being displayed when the
			Timer/Crater Select key is pressed,
			then the light of the last parameter
			selected before the function was cho-
			sen will come on and become the start-
			ing point for the sequencing.
			Top Left Light - indicates preflow time
			is being displayed in seconds. This is
			the time the shielding gas flows before
			the wire feed and power source are
			activated.
			Top Right Light - indicates postflow
			time is being displayed in seconds.
			This is the time the shielding gas flows
			after the wire feed and power source
			are deactivated.
			Middle Light - indicates that crater feed
			speed is being displayed. Crater speed
			is only available when 4-step trigger
			with crater fill is selected. (See 4-step
			trigger mode selection section). It is
			activated by Step 3 and deactivated by
			Step 4 of the 4-step sequence.
			Bottom Light - indicates spot on time is
			being displayed in seconds.
			NOTE: if unit is not in spot mode then
			this light will be skipped over in the
			selection sequence.
			Increase Arrow - key increases the
			setting of the parameter selected to be
			displayed, except Wire Feed Speed and
			Volts/Trim which are controlled by the
			encoder knobs.
			Decrease Arrow - key decreases the
			setting of the parameter selected to be
			displayed, except Wire Feed Speed and
			Volts/Trim which are controlled by the
			encoder knobs.
			Arrow Keys use the “Accelerating
			Digit” method for setting changes,
			where holding the arrow key causes
			setting change rate to accelerate from
			slow to fast. Releasing arrow key resets
			to slow setting change.

GAS PURGE

V VOLTS / TRIM

RUN-IN

WFS

GAS PURGE

PREFLOW POSTFLOW

12

CRATER

SPOT

GAS PURGE

COLD FEED

Acceleration Selection

Pressing both the “Gas Purge” key and then the function select key at the same time causes the acceleration setting to be displayed. The display will indicate “A-X” where X will be a number from 1 through 5 with 5 being the fastest acceleration. This number can be adjusted using the arrow keys. To exit this function, press both these keys again or press any other key except the arrow keys.

Burnback Time Selection

If necessary, for higher wire feed speeds, Burnback time may be selected to prevent the electrode from sticking in the weld puddle at the end of the weld. Pressing both the Gas Purge key then the function select key at some time while displaying the acceleration setting per above, press the function select key a second time to dis- play the Burnback time selection. Default is “b0” which is zero delay. Selecting “b1" thru “b5" selects delays from 10m sec to 50m sec in 10m sec increments. To exit this function, press both these keys again or press any other key except the arrow keys.

Selection of English or Metric Speed Display Units

Pressing both the Gas Purge key and then timer select key at the same time causes the speed display units to toggle between IPM (no decimal point displayed) and m/m (a decimal point displayed). If the speed dis- play units were IPM, then they will change to m/m. If the speed display units were m/m, then they will change to IPM. If the display is showing the volts/trim or one of the timers when the keys are pressed, the display will be changed to weld speed to indicate the selected speed display units.

Run-In Selection

Pressing both the Gas Purge and Cold Feed keys at the same time causes Run-In func- tion to toggle on or off, as indicated by the Run-In indicator light turning on or remaining off in the function select sequence.

As shipped, the Run-In function is off with a fixed setting of min. rated speed. Therefore, the Run-In indicator light will not sequence with the function select key, but the fixed setting will still be used for actual Run-In speed.

Activation of adjustable Run-In speed using the above dual key press, will permit Run-In speed to be adjusted with the arrow keys and the Run-In indicator light will return to the function key sequence. Re-pressing the above dual key again removes the Run-In light from the function key sequence, but replaces the fixed Run-In speed with the adjusted Run-in speed setting, until read- justed.

SYNERGIC 7F & FH