What do all these letters stand for? What's the difference between the machines?
PWF
SAE is Society of Automotive Engineers... as in oil specs, bolt sizes, standard threads etc... not sure what application you are looking at since SAE is the only one of those I recognized.
SAM stands for our our member Farmersam and his various updated versions: Farmersamm, Farmersamm, Farmersammm...
as well as for Surface-to-Air Missile, which I was once somewhat familiar with.
SAF [Second Amendment Foundation] is the group that is successful in burning back the illegal actions of various bureaucrats and Polecat-icians who believe one can weld without a stick, a gun, a torch or any other kind of tool.
Difference between Lincoln SA and SAE models:
https://mylincoln.lincolnelectric.c...coarse-current-control-for-SA-and-SAE-type-DC-generator-machines?language=en_US
https://mylincoln.lincolnelectric.c...coarse-current-control-for-SA-and-SAE-type-DC-generator-machines?language=en_US
SA shielded arc
SAE I am not sure what the letters stand for but most SAE machines are stick welders but the dial has basically infinite settings doesn’t have settings like a sa200 or sa250
SAM usually have the ability to run cc/cv or some semi automatic process { wire feeders , submergered arc , etc and stick they are usually bigger machines 400 and up I think
SAE I am not sure what the letters stand for but most SAE machines are stick welders but the dial has basically infinite settings doesn’t have settings like a sa200 or sa250
SAM usually have the ability to run cc/cv or some semi automatic process { wire feeders , submergered arc , etc and stick they are usually bigger machines 400 and up I think
View attachment 68659890127__B430C981-2CC0-490B-9457-DC852065FBB9.jpg
This is a common dial on SAE machine you will see this same dial on the old Lincoln electric generators
This is a common dial on SAE machine you will see this same dial on the old Lincoln electric generators
I've never owned a Lincoln engine drive. SA is Shield Arc... I have no idea what the other letters stand for. I mean, obviously it designates some sort of variation, but I'm wondering if it's similar to how Caterpillar does their letter designations. Model # + Iteration letter.... I think. CAT's model designations have always seemed sorta arbitrary to me.
Maybe SAE is the "electronic" version of the SA? Is there some sort of electronic device (something solid state?) that the SAE has that the SA doesn't?
Explanation of coarse current control for SA, and SAE type DC generator machines
This article describes how the two main coarse control systems used in DC generator machines function.
This article describes the detailed operation of the two most common coarse control systems used in Lincoln Electric's DC generator welders.
Both common types of DC generator machines control the coarse current setting by regulating the strength of the magnetic field in the series coil poles. The shunt coils, which are controlled by the fine control rheostat, produce a strong magnetic field in the generator. When the armature spins in this field, it produces weld output. The series coils oppose the magnetic field of the shunt coils. When the series coils become active, a magnetic field generated by the series coils will cause the weld output voltage to drop to a lower level. Because the series coils are connected in series with the weld load, they only become active when an arc is struck or a load is applied. This means that there is a higher voltage available when the machine is not welding, making for an easier arc strike. This voltage will immediately drop to a level more suitable for welding as soon as an arc is struck and current begins to flow in the series coils. This is how a dynamic drooping output curve, which is necessary for CC stick welding, is produced in this type of machine.
In the SA, Classic and Pipeliner type machines, a tap switch is used to control the magnetic field generated by the series coils. These tap settings, often called "Gears" by many pipeline welders, control the number of active turns in the series coils. The greater the number of active turns, the higher the magnetic field produced, causing lower weld output. The highest settings activate the fewest number of turns, and the lowest setting activates all of the turns in the series coil set.
The system used in SAE type machines, often called "Dual Continuous Control" uses series coils that have no taps. This system uses a reactor output control device which acts like a very high current rheostat, and is connected in parallel with the series coils. This reactor output control allows a portion of the current to bypass the series coils. In the Minimum output setting this reactor is open, causing all of the current to pass through the series coils. When placed in the maximum setting the majority of the weld current passes through the reactor, bypassing the series coils. This causes a weaker opposing magnetic field to be produced in the series coils. Settings between minimum and maximum are continuous. This continuous setting, in combination with the fine control, or job selector setting allows the operator to set the exact volt-amp output curve desired.
This article describes how the two main coarse control systems used in DC generator machines function.
This article describes the detailed operation of the two most common coarse control systems used in Lincoln Electric's DC generator welders.
Both common types of DC generator machines control the coarse current setting by regulating the strength of the magnetic field in the series coil poles. The shunt coils, which are controlled by the fine control rheostat, produce a strong magnetic field in the generator. When the armature spins in this field, it produces weld output. The series coils oppose the magnetic field of the shunt coils. When the series coils become active, a magnetic field generated by the series coils will cause the weld output voltage to drop to a lower level. Because the series coils are connected in series with the weld load, they only become active when an arc is struck or a load is applied. This means that there is a higher voltage available when the machine is not welding, making for an easier arc strike. This voltage will immediately drop to a level more suitable for welding as soon as an arc is struck and current begins to flow in the series coils. This is how a dynamic drooping output curve, which is necessary for CC stick welding, is produced in this type of machine.
In the SA, Classic and Pipeliner type machines, a tap switch is used to control the magnetic field generated by the series coils. These tap settings, often called "Gears" by many pipeline welders, control the number of active turns in the series coils. The greater the number of active turns, the higher the magnetic field produced, causing lower weld output. The highest settings activate the fewest number of turns, and the lowest setting activates all of the turns in the series coil set.
The system used in SAE type machines, often called "Dual Continuous Control" uses series coils that have no taps. This system uses a reactor output control device which acts like a very high current rheostat, and is connected in parallel with the series coils. This reactor output control allows a portion of the current to bypass the series coils. In the Minimum output setting this reactor is open, causing all of the current to pass through the series coils. When placed in the maximum setting the majority of the weld current passes through the reactor, bypassing the series coils. This causes a weaker opposing magnetic field to be produced in the series coils. Settings between minimum and maximum are continuous. This continuous setting, in combination with the fine control, or job selector setting allows the operator to set the exact volt-amp output curve desired.
No electronics in SAE that machine I have is from the 50’s and it is the only SAE 250 I can find or have seen it is smaller then a 300 but yet bigger than a 200 welding with a SAE your settings are unlimited and restarts are easier but like I have said before understanding the dial on a SAE takes a degree in engineering it is more of a trail by error ! So again I think Lincoln stayed with what they had on the 200 for simplicity .
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