Lincoln Electric FLEXTEC350x CE CONSTRUCTION Operator'S Manual Download Page 21

 

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When a remote potentiometer is connected, the 
output control on the Flextec and the remote act as 
a master/slave config- uration.  Use the output 
control dial on the Flextec to set the maximum 
welding current. The remote will control output from 
minimum to the pre-set maximum. 

 

Output Control Dial 

 

When the Local/Remote is set to Local, this dial 
sets the welding amperage. 

 

When the Local/Remote is set to Remote, this dial 
sets the maximum welding amperage. The remote 
potentiometer than controls the amperage from 
minimum to this pre-set maximum. 

 

SMAW 

This weld mode is a constant current (CC) mode 
featuring continuous control from 15 – 425 Amps. 
It is intended for the SMAW stick welding processes 
and arc gouging.  The mode can also be used for TIG 
operation without changing modes (as long as Hot 
Start=0 and Arc Control=(-10). Values of Hot Start 
greater than 0 will result in a higher current arc start. 
Values of Arc Control greater than the minimum setting 
of (-10) will result in a higher output that yhe intended 
preset value). 
 

Hot Start

 - The Hot Start control regulates the starting 

current at arc initiation. Hot Start can be set to ‘0” and 
no additional current is added at arc start. Increasing 
from 0 to 10 will increase the additional current (relative 
to the preset current) that is added at arc initiation. 
 

Arc Control

 - The Arc Control regulates the Arc Force 

to adjust the short circuit current. The minimum setting 
(-10) will produce a "soft" arc and will produce minimal 
spatter and shallow penetration. The maximum setting 
(+10) will produce a "crisp" arc and will minimize 
electrode sticking with deeper penetration. 
 

Weld Terminals On/Remote

 – Set to “On” so the 

machine is in the ready to weld state.  Setting the 
machine to “On” enables the machine OCV. 
 

Voltage Display

 – This display will display three 

dashed lines when the machine is in the idle state. This 
indicates that voltage is not settable in this weld mode. 
While output is enabled, the actual welding voltage will 
be displayed.  After welding, the meter holds the actual 
voltage value for 5 seconds. Output adjustment while in 
the "hold" period results in the "prior to operation" 
characteristics stated above. The displays blink 
indicating that the machine is in the "Hold" period. 
 

 

 

Amperage Display

 – This display will display the pre-

set welding current when the machine is in the idle 
state. After welding, the meter holds the actual 
amperage value for 5 seconds. Output adjustment while 
in the "hold" period results in the "prior to operation" 
characteristics stated above. The displays blink 
indicating that the machine is in the "Hold" period. 
 

Output Control Local/Remote

 – When the control is 

set to local (no remote potentiometer/control plugged 
into the 12-pin or 14-pin connectors), the output is 
controlled through the Output Control dial on the front of 
the Flextec 350x CE . Set this switch to ‘Remote’ when 
an external potentiometer/control is connected. 

 

When a remote potentiometer is connected, the 
output control on the Flextec and the remote act as 
a master/slave config uration.  Use the output 
control dial on the Flextec to set the maximum 
welding current. The remote will control output from 
minimum to the pre-set maximum. 

 

Output Control Dial 

 

When the Local/Remote is set to Local, this dial 
sets the welding amperage. 

 

When the Local/Remote is set to Remote, this dial 
sets the maximum welding amperage. The remote 
potentiometer than controls the amperage from 
minimum to this pre-set maximum. 

 

CV-Gas 

This weld mode is a constant voltage (CV) mode 
featuring continuous control from 10 to 45 volts. 
It is intended for the GMAW, FCAW-GS, MCAW 
welding processes and arc gouging. 

Hot Start

 – Rotate from the ‘0’ position to the ‘10’ 

position to provide more energy during the start of a 
weld. 

Arc Control

 – The Arc Control regulates pinch effect. 

At the minimum setting (-10), minimizes pinch and 
results in a soft arc. Low pinch settings are preferable 
for welding with gas mixes containing mostly inert 
gases as well as aluminum alloys. At the maximum 
setting (+10), maximizes pinch effect and results in a 
crisp arc. High pinch settings are preferable for welding 
FCAW and GMAW with CO2. 

Weld Terminals On/Remote 

 

When set to the ‘ON’ position, the weld terminals 
are at OCV (open circuit voltage) and ready to 
weld. This selection is used for across the arc wire 
feeders. The 12-pin connector remote input is used 

Summary of Contents for FLEXTEC350x CE CONSTRUCTION

Page 1: ...IM2075 02 2017 REV00 FLEXTEC 350x CE OPERATOR S MANUAL ENGLISH THE LINCOLN ELECTRIC COMPANY 22801 St Clair Ave Cleveland Ohio 44117 1199 USA www lincolnelectric eu...

Page 2: ...K4283 K4284 K3441 K3442 Product numbers may also contain prefixes and suffixes Is in conformity with Council Directives and amendments Electromagnetic Compatibility EMC Directive 2014 30 EU Low Volta...

Page 3: ...tified immediately to the dealer For future reference record in the table below your equipment identification information Model Name Code Serial Number can be found on the machine rating plate Model N...

Page 4: ...in tripping action that decreases as the magnitude of current increases RATED OUTPUT Process Duty Cycle Volts at rated Amperes Amperes Efficiency at rated output GMAW CV 60 31 5V 350 0 87 0 86 0 85 10...

Page 5: ...surement Personal medical devices like pacemakers and hearing aids Check the electromagnetic immunity for equipment operating in or near the work area The operator must be sure that all equipment in t...

Page 6: ...he work clamp to avoid the risk of accidental arc ignition ELECTRIC AND MAGNETIC FIELDS MAY BE DANGEROUS Electric current flowing through any conductor creates electric and magnetic fields EMF EMF fie...

Page 7: ...across the arc wire feeders The Flextec 350x CE Standard comes with a 5 pin ArcLink digital feeder connector a 12 pin remote outuput connector and a 14 pin alalog feeder connector standard Voltage se...

Page 8: ...ing to your local and national electrical codes Input Fuse and Supply Wire Considerations Refer to technical specifications for recommended fuse wire sizes and type of the copper wires Fuse the input...

Page 9: ...remotely controoled by a wire feeder or remote device 15 Wire Feeder Voltmeter polarity selection switch matches the polarity of the wire feeder voltmeter to the polarity of the electrode 16 Power Sw...

Page 10: ...ange of the dip switch Factory Default Setting All Switches in the OFF Position Test Mode Setting 1 Enter a test mode This is utilized when the machine is connected to a grid load for serving a Turn s...

Page 11: ...G TRIGGER H TRIGGER J 40VDC COMMON K 40VDC L NOT USED M NOT USED Socket 2 5 Pin Arclink Connector Picture Function Pin Wiring 5 PIN CONNECTOR FOR WIRE FEEDER CONNECTIVITY A ARCLINK CAN B ARCLINK CAN C...

Page 12: ...lengths and do not coil excess cable Route the electrode and work cables in close proximity to one another to minimize the loop area and therefore the inductance of the weld circuit Always weld in a...

Page 13: ...riving force wire feeding problems Always use the shortest length of control cable possible and DO NOT coil excess cable Regarding cable placement best results will be obtained when control cables are...

Page 14: ...4 to the Flextec 350x CE CONTROL SETTING WELD MODE CV CV INNERSHIELD WELD TERMINALS REMOTELY CONTROLLED REMOTE LOCAL LOCAL REMOTE IF K2329 1 INSTALLED VOLTMETER POLARITY PROCESS DEPENDENT 14PIN CONTRO...

Page 15: ...H 10 control by turning off the power at the welding power source it is connected to 2 Remove the two screws on the top of the LN 10 DH 10 control box door and swing the door down to open 3 Locate the...

Page 16: ...OSSLINC VOLTMETER POLARITY PROCESS DEPENDENT Connecting LN 25 Pro Dual Power to the Flextec 350x CE CONTROL SETTING WELD MODE CV CV INNERSHIELD WELD TERMINALS REMOTELY CONTROLLED REMOTE LOCAL REMOTE V...

Page 17: ...4 Connecting Arclink Feeder to the Flextec 350x CE CONTROL SETTING WELD MODE ARCLINK WELD TERMINALS REMOTE REMOTE LOCAL N A N A VOLTMETER POLARITY N A WIRE FEEDER ARCLINK FEEDERS WORK ARCLINK CABLE K1...

Page 18: ...If the thermostat shutdown was caused by excessive output or duty cycle and the fan is operating normally the Power Switch may be left on and the reset should occur within a 15 minute period For FT350...

Page 19: ...s in the prior to operation characteristics Amperage Display Meter Prior to STICK or TIG operation current flow the meter displays preset current value Prior to CV operation the meter displays four da...

Page 20: ...S ON WELD VOLTAGE It is normal for the lights to alternate between colors while welding Basic Modes of Operation GTAW This weld mode is a constant current CC mode featuring continuous control from 10...

Page 21: ...ustment while in the hold period results in the prior to operation characteristics stated above The displays blink indicating that the machine is in the Hold period Amperage Display This display will...

Page 22: ...ital meters on th LN25x will show the pre set values for wire feed speed and voltage prior to welding During welding the meters will show actual current and voltage present at the wire feeder After we...

Page 23: ...n the idle state After welding the meter holds the actual voltage value for 5 seconds Output adjustment while in the hold period results in the prior to operation characteristics stated above The disp...

Page 24: ...2 Put dipswitch 1 in the on postion 3 Rotate the Hot Start knob and Arc Control knob to the minimum 4 Turn on the FLEXTEC 350x 5 The display should read Cur CAL 6 Rotate the Arc Control knob until th...

Page 25: ...he owner of the equipment you should get information on approved collection systems from our local representative By applying this European Directive you will protect the environment and human health...

Page 26: ...agram is for reference only It may not be accurate for all machines covered by this manual The specific diagram for a partiuclar code is pasted inside the machine on one of the enclosure panels If the...

Page 27: ...for reference only It may not be accurate for all machines covered by this manual The specific diagram for a partiuclar code is pasted inside the machine on one of the enclosure panels If the diagram...

Page 28: ...cker monitor s information regarding your welding arc by connecting it between any DC welding power source and the work clamp Weld Fume Control Solutions Lincoln Electric offers a wide variety of weld...

Page 29: ...70mm2 5m Tig Options K870 2 Foot Amptrol Provides 25 ft 7 6 m of remote current control for TIG welding 12 pin plug connection K963 4 Hand Amptrol Provides 25 ft 7 6 m of remote current control for TI...

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