Electrode and Work Connections | Lincoln Electric IM850-A guide

A-4	INSTALLATION	A-4

ELECTRODE AND WORK

CONNECTIONS

Due to the Power Wave AC/DC”s ability to produce either a DC positive, DC negative or AC output the elec- trode and work connections do not need to be reversed for the different polarities. Additionally no DIP switch changes are required to switch between the different polarities. All of this is controlled internally by the Power Wave AC/DC. The following directions apply to all polar- ities:

Connect a work lead of sufficient size (Per Table A.1) and length between the "work" stud (located beneath the spring loaded output cover on the front of the machine) and the work. For convenience, the work lead can be routed behind the left strain relief (under the spring loaded output cover), along the channels, and out the back of the machine. Be sure the connection to the work makes tight metal-to-metal electrical contact. The work piece connection must be firm and secure. Excessive voltage drops caused by poor work piece connections often result in unsatisfactory welding per- formance. To avoid interference problems with other equipment and to achieve the best possible operation, route all cables directly to the work and wire feeder. Avoid excessive lengths and do not coil excess cable.

Connect the electrode cable to the "ELECTRODE" stud on the power source (located behind the cover plate on the lower left side). For convenience, the cable can be routed through the oval hole in the left cable tray before being connected to the output terminals. Connect the other end of the electrode cable to the nozzle. Be sure the connection makes tight metal-to-metal electrical contact. The electrode cable should be sized according to the specifications given in Table A.1.

TABLE A.1 - Output Cable Guidelines

Total Cable Length
ft (m)	Duty Cycle	Number of	Cable Size
Electrode and Work		Parallel Cables	Copper
Combined

0 (0) to 250 (76.2)	80%	2	4/0 (120 mm2)
0 (0) to 250 (76.2)	100%	3	3/0 (95 mm2)

When using inverter type power sources like the Power Wave, use the largest welding (electrode and work) cables that are practical. When pulsing, the pulse current can reach very high levels. Voltage drops can become excessive, leading to poor welding characteristics, if undersized welding cables are used.

REMOTE SENSE LEAD SPECIFICATIONS

The Power Feed 10S has sense lead connections at the Connection Box mounted to the motor. These sense leads are critical to the accuracy of the Power Wave welding process. Ring terminals are provided at the ends of the leads. These leads must be extended to the Work piece and the Electrode respectively. The lead marked "TO WORK" should be extended and connected to the work piece, while the lead marked "TO ELECTRODE" should be extended and connect- ed to the nozzle. These connections should be made as close to the welding arc as possible. Use at least a 12 AWG wire with a proper sized ring terminal. Use a screw with a lock washer and nut to make the connec- tion, then insulate the connection with electrical tape. Proper care should be taken to protect the sense leads from becoming disconnected or damaged. The loss of a sense lead connection can adversely affect welding performance.

There are several different sense lead configurations that can be used depending on the application. The ELECTRODE sense lead (67) and the WORK sense lead (21) are built into the wire drive control cable. The system has multiple sense lead configurations available. Consult the power source manual on how to configure the power source DIP switches for the sense leads.

CAUTION

Excessive voltage drops at the work piece con- nection often result in unsatisfactory pulse weld- ing performance.

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POWER FEED 10S

IM850-A specifications

The Lincoln Electric IM850-A is a cutting-edge inverter-based multi-process welder that has made a significant impact in the welding industry. Known for its versatility and robust features, the IM850-A caters to a wide array of welding applications, making it an ideal choice for both professional welders and hobbyists alike.

One of the standout features of the IM850-A is its multi-process capability. This welder supports MIG, TIG, and Stick welding processes, providing users with the flexibility to tackle various projects with ease. Whether you are working with thin sheet metal or heavier materials, this machine is designed to deliver superior performance across all welding disciplines.

The IM850-A is powered by Lincoln Electric's advanced inverter technology, which not only enhances efficiency but also significantly reduces the overall size and weight of the unit. This technology allows the welder to operate with a high power-to-weight ratio, making it portable and easy to transport to job sites or workshops. The inverter design also helps in maintaining a stable arc, ensuring high-quality welds with minimal spatter.

In terms of user interface, the IM850-A features an intuitive control panel that simplifies operation. With straightforward settings for amperage and voltage, welders can easily adjust parameters to suit different applications. Additionally, the digital display provides real-time feedback, allowing users to make precise adjustments on the fly.

Another notable characteristic of the IM850-A is its durability. Built with rugged materials, this welder is designed to withstand the rigors of daily use in demanding environments. The machine is also equipped with thermal overload protection, which safeguards it from overheating and extends its lifespan.

The IM850-A supports a wide range of welding materials, including mild steel, stainless steel, and aluminum. Its capability to handle various wire diameters enhances its versatility further, allowing for efficient operation with different welding wire types.

Safety is paramount in the design of the IM850-A. It comes equipped with advanced safety features, including an automatic shut-off function and protective circuitry, ensuring that users can work with confidence.

Overall, the Lincoln Electric IM850-A is a powerful and highly versatile welding machine that combines advanced technology with user-friendly features. Its combination of multi-process capability, inverter technology, and rugged durability makes it a top choice for those looking to achieve high-quality welds across a wide array of applications. Whether you're a seasoned professional or just starting in the world of welding, the IM850-A stands out as a reliable and efficient tool for any welding project.

INSTALLATION