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User manual Lincoln Electric, model INVERTEC IM526-B

Manafacture: Lincoln Electric
File size: 784.83 kb
File name: 370b3826-e402-498a-9984-8d2fb7ba3054.pdf
Language of manual:en
Free link for this manual available at the bottom of the page



manual abstract


Refer to diagram S20405 at the back of this manual. A negative output cable assembly is also supplied with the DC TIG Starter kit to connect the kit with the Invertec’s negative output terminal. All Magnum™ one and two piece water-cooled torches with 7/8 left-hand threads and gas-cooled torches with 7/8 and 5/16 right-hand threads can be connected to the starter kit. To secure the DC TIG Starter kit to the bottom of the Invertec and for more detailed instructions, refer to the K900-1 manual. – –– 9 99– ––MAR97 LN-9 GMA Connection Instructions 1. Turn the Invertec power switch “off”. 2. Connect the K596 control cable assembly from the LN-9 GMA to the Invertec control cable connector. The control cable connector is located at the rear of the Invertec. 3. Connect the electrode cable to the output terminal of polarity required by electrode. Connect the work lead to the other terminal. 4. Place the local-remote switch in the “remote” position to allow output control at the LN-9 GMA. 5. Set the meter polarity switch on the rear of the Invertec to coincide with wire feeder polarity used. The wire feeder will now display the welding voltage. 6. K608-1 adapter is required in LN-9 GMA for LN-9 type control. K608-1 is installed in line with P10 connection at the LN-9 GMA voltage board. See diagram S20607 at the back of this manual. 7. K442-1 Pulse Power Filter Board is also required for GMAW, but should be disconnected for FCAW. 8. If K596 is not available, see connection diagram S20608 at the back of this manual for modification of K196 LN-9 GMA input cable with K867 universal adapter plug. Output Cables Select the output cable size based upon the following chart. Cable sizes for Combined Length of Electrode and Work Cable (Copper) 75° rated: 2. Slide rubber boot onto cable end. The boot end may be trimmed to match the cable diameter. Soap or other lubricant will help to slide the boot over the cable. BOOT WELDING CABLE 25 mm TRIM 1 in. 3. Slide the copper tube into the brass plug. 4. Insert cable into copper tube. SET SCREW BRASS PLUG COPPER TUBE 5. Tighten set screw to collapse copper tube. Screw must apply pressure against welding cable. The top of the set screw will be well below the surface of the brass plug after tightening. 6. Slide rubber boot over brass plug. The rubber boot must be positioned to completely cover all electrical surfaces after the plug is locked into the receptacle. Duty Length Up 61-76m Cycle Current 61m (200 ft.) (200-250 ft.) 100% 250 1/0 1/0 60% 300 1/0 2/0 Quick Disconnect Plugs A quick disconnect system is used for the welding cable connections. The welding plug included with the machine is designed to accept a welding cable size of 1/0 to 2/0. 1. Remote 25mm (1 in.) of welding cable insulation. – 10 – OPERATING INSTRUCTIONS WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet clothing. • Insulate yourself from work and ground. • Always wear dry insulating gloves. FUMES AND GASES can be dangerous. • Keep your head out of fumes. • Use ventilation or exhaust to remove fumes from breathing zone. WELDING SPARKS can cause fire or explosion. • Keep flammable material away. • Do not weld on closed containers. ARC RAYS can burn eyes and skin. • Wear eye, ear and body protection. See additional warning information at front of this operator’s manual. DUTY CYCLE The Invertec is rated at 300 amps, 60% duty cycle for 3 phase inputs (based on a 10 minute cycle). It is also rated at 250 amps, 100% duty cycle. CONTROL FUNCTION / OPERATION Power Switch -Place the lever in the “ON” position to energize the machine. When the power is on, the digital meter will activate and the fan will operate. OFF Output Control - This controls the output voltage in the CV modes and output current in the CC modes. Control is provided over the entire output range of the power source with 1 turn of the control knob. This control may be adjusted while under load to change power source output. OUTPUT Local/Remote Switch - Place in the “LOCAL” position to allow output adjustment at the machine. Place in the “REMOTE” position to allow output adjustment at the wire feeder or with a remote control option package. REMOTE Digital Meter Switch - Select either “A” for amps or “V” for volts to display welding current or voltage on the meter. When welding current is not present, the meter will display the set current for the CC modes or the set voltage for the CV modes. This set reading is an indication of machine control setting. For a more precise process reading, read meter during actual welding. Mode Switch GTAW Optimized for both scratch start and Hi- Freq kit use. CC SOFT Best for EXX18 thru EXX28 stick electrodes. CC Crisp Use this mode for stick welding with EXX10 thru EXX14 electrodes. Non- welding applications such as resistive heating or output tests with resistive loads should be done in this mode with Arc Force Control set to minimum. – 11 – CV FCAW This setting has been op...


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