Lincoln Electric K1780-1 manual Speed, Selecting the Proper Gear Ratio, Available Cable Assemblies

A-4				INSTALLATION		A-4
CON		TROL CABLE SPECIFICATIONS			WIRE DRIVE GEAR RATIO (HIGH OR LOW
It is recommended that genuine Lincoln control cables					SPEED)
					The speed range capability and drive torque of the
be used at all times. Lincoln cables are specifically					Power Feed wire drives can be easily and quickly
designed for the communication and power needs of					changed by changing the external drive gear. The
the Power Wave / Power Feed system. The use of					Power Feed Wire Feeders are shipped with both high
non-standard cables, especially in lengths greater					speed and a low speed gears. As shipped from the
than 25 feet, can lead to communication problems					factory, the low speed (high torque) gear is installed
(system shutdowns), poor motor acceleration (poor					on the feeder. If this is the desired gear ratio, no
arc starting) and low wire driving force (wire feeding					changes need be made.
problems).					SELECTING THE PROPER GEAR RATIO
Lincoln control cables are copper 22 conductor cable
in a SO-type rubber jacket.					See Specification Section A-1 for feed speed and wire
			TABLE 2 (CONNECTOR WIRING)		size capabilities with high and low speed gear ratios.
					To determine whether you should be using the high or
	Pin		Lead #	Function	low speed ratio use the following guidelines:
	A		841	+15vdc Tach voltage	• If you need to operate at wire feed speeds above
	B		844	Tach common
	C		842	Tach 1A differential signal	800 IPM (20 m/m), you will need to install the high
	D		843	Tach 1B differential signal	speed gear (large 30 tooth, 1.6 inch diameter gear).
	E		845	Tach 2A differential signal	• If you do not need to run at wire feed speeds in
	F		846	Tach 2B differential signal -	excess of 800 IPM (20 m/m), you should use the low
	G		847	Single Tach Input	speed gear (small, 20 tooth, 1.1 inch diameter gear).
	H		67B	Reserved for future use	Using the low speed ratio will provide the maximum
	I			Voltage sense lead	available wire driving force.
	J		539	Motor "+"	The full range of wire feed speed listed in Section A-1
	K		541	Motor "-"	may not be useable for all welding programs. Check
	L			Reserved for future use	your welding software to make sure the desired WFS
	M		521	Reserved for future use	falls within the welding software limits.
	N			+40vdc for solenoid
	P		522	solenoid input
	R			Reserved for future use
	S		855A	Reserved for future use
	T			Shield ground to case
	U			Reserved for future use
	V			Reserved for future use
	W			Reserved for future use
	X			Reserved for future use
	AVAILABLE CABLE ASSEMBLIES:

K1795 Control cable only. Available in lengths of 25', 50' and 100'.

POWER FEED 10 / R