Lincoln-Electric Welding Inverter PC65-PC105

33
Europe Service Training Service Training Invertec ® PC65 - PC105

description

Presentation for Service

Transcript of Lincoln-Electric Welding Inverter PC65-PC105

Page 1: Lincoln-Electric Welding Inverter PC65-PC105

Europe

Service TrainingService Training

Invertec ® PC65 - PC105

Page 2: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC 65PC 105

Page 3: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC 65

A Output curret settingB Gas PurgeC Power ON/OFF LEDD Output LEDE Gas alarm LEDF Thermal LED

Page 4: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC 105

A Output current settingB Gas PurgeC Power ON/OFF LEDD Output LEDE Gas alarm LEDF Thermal LEDG Cutting LEDH Remote switch I Remote connector

Page 5: Lincoln-Electric Welding Inverter PC65-PC105

Europe

Torch & RemoteConnectors

Page 6: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 PC105General Information

• Plasma is a gas heated to a very high temperature (>10.000°C)

• The gas is ionized, thus being able to conduct an electric current

• A narrow orifice on the nozzle of the torch constricts the arc

• The heat of the arc melt the metal • The high velocity jet blows away the molten metal• Voltage drop in the arc is => 80 + (0,4 x A(output

current ))

Page 7: Lincoln-Electric Welding Inverter PC65-PC105

Europe

The pilot arc (non transferred

arc)

• A pilot arc is necessary to ionized the gas and to provide a conductive path between the electrode and the torch tip or nozzle

• To strike the pilot arc two methods are mainly used:– High frequency that generates a spark

between the electrode and the torch tip– The touch start with movable electrode that

touches the tip being momentarily shorted, then retracts immediately to establish the cutting arc • The pilot arc provides an ionized,

conductive path• When the torch is close enough to the

workpiece, so that the flame touches it, the cutting arc can be established

Page 8: Lincoln-Electric Welding Inverter PC65-PC105

Europe

Pilot arc relay

Reed Switch

Torch sideMachine Side

Arc transfer system

Page 9: Lincoln-Electric Welding Inverter PC65-PC105

Europe

What we need for a correct

cut

• Air supply– pressure at the inlet of the gas regulator

must be between 5 and 7,5 bar ( approx. from 72,5 to 108,5 PSI )

– oil in the air creates severe problem– humidity in the air creates higher orifice’s

and electrode’s consumption and more DrossDross

• Consumables– check the consumables conditions– worn consumables reduce the cutting

capability and increase the DrossDross production

The Torch needs:The Torch needs: 130 l/min for PC65130 l/min for PC65 180 l/min for PC105180 l/min for PC105

Page 10: Lincoln-Electric Welding Inverter PC65-PC105

Europe

What we need for a correct

cut• …….Consumables

– use the orifice according to the Cutting Current

– Current Orifice• 30 A 0,8mm• 50 A 1,0mm• 70A 1,2mm• 100A 1,3mm

• Distance from the work pieceThin plate: slightly touching the work pieceThick plate: keep a distance of 3mm or using the spacer(higher distance will increase the life of the consumables but it will reduce the cutting capability)

Page 11: Lincoln-Electric Welding Inverter PC65-PC105

Europe

Technical Specifications

Page 12: Lincoln-Electric Welding Inverter PC65-PC105

Europe

Technical informationPC65 - PC105

Page 13: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 wiring diagram

Input Bd.

Page 14: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 input board

400Vac

To Fan

Aux voltage to control circuits

575 Vdc to inverter board

3ph rectifier bridge

Start relay + start resistor

Input filter capacitors

NTC gives delay for start relay

Auxiliary transformer

Page 15: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 input board

PC65 input board

3ph rectifier bridge

start resistor

start relay

Auxiliary transf.

Filter capacitors

Input Line

Page 16: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC105 input board

Aux voltage to control circuits

Auxiliary transformer

To Fan

3x 2ph rectifier bridges

NTC gives delay for start relay

400Vac 575 Vdc to inverter board

Start relay + start resistor

Page 17: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC105 input board3 x 1ph

rectifier bridges

start relay

Auxiliary transf. Filter

capacitors

start resistor

Input Line

Page 18: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC105 input board

PC65 / PC105 wiring diagram

Inverter Bd.

Page 19: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 inverter board

Switching freq= 30KHzMax Vin = 650Vdc => 460Vac

Duty Cycle trimmer ( set at

40%)

Max Vin trimmer ( set for max

650Vdc)

Max output current Do not adjust !!!

Page 20: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 inverter board

Snubber diodes

Recovery diodes

IGBT

IGBT

Ammeter trasformer to read the primary

current

P.W.M.

Max Vin trimmer

Thermal sensor

Page 21: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC105 inverter board

Snubber diodes

Recovery diodes

IGBT

IGBT

Ammeter trasformer to

read the primary current

P.W.M.

Max Vin trimmer

Thermal sensor

Page 22: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 wiring diagram

Output Block

Page 23: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 output board

To Work

Pilot arc

Torch Trigger

Torch electrode

Pilot arc relay

Reed switch

Output rectifier diodes

Magnetic field

recovery diodes

Thermal sensor

Shunt

Page 24: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC105 output board

Pilot arc relay

Shunt Copper coil with

inside reed switch

Thermal sensor

Magnetic field

recovery diodes

Rectifier diodes

Insulated from

heatsink

Page 25: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 wiring diagram

HF board

Page 26: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 HF board

A

B

RL1

R1

C1

L1

T1 T2D1 C2

SP1

C

D

High Voltage transf.

ON-OFF HF relay

From main transformer auxiliary winding

To HF transformer

- PC65 = trimmed 0,3 mm- PC105 = trimmed 0,5 mm

Spark Gaps

Page 27: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 wiring diagram

Control board

Page 28: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 Control board

Arc transfer control + thermal sensor control

area

Remote control circuit Output current control circuit

Relays control circuit - cutting arc solenoid - pilot arc solenoid - pilot arc relay - HF relay

This slide is related to the PC105 control

board

Page 29: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 Control board

Gas purge switch

Output current potentiometer

Max output current setting

trimmer

Page 30: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC 105 Control board

Gas purge switch

Output current potentiometer

Max output current setting

trimmer

ON/OFF remote control

Remote control connector

Page 31: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 wiring diagram

Air solenoid circuit

Page 32: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 Air circuit

Air pressure switch setted

at 4 barFirst air solenoid

standard

Second air solenoid this one has a small hose inside that is calibrated

for the pilot arc

- PC65 = Second gas solenoid hole Ø 1,5mm - PC105 = Second gas solenoid hole Ø 1,6mm

Page 33: Lincoln-Electric Welding Inverter PC65-PC105

Europe

PC65 / PC105 torch wiringFront panel safety

sleeve micro switch

Torch trigger

Torch safety contact