ESAB Origo Mig L305 Bedienungsanleitung

Origo™

Service manual

0349 300 067 GB 20200225

Valid for:

MigL305:serialno.628-,647-,211-,331-,746-xxx-xxxx

MigL405:serialno.628-,647-,211-,331-,730-xxx-xxxx

MigL305, MigL405

TABLE OF CONTENTS

0349 300 067 © ESAB AB 2020

READ THIS FIRST.................................................................................... 3

INTRODUCTION....................................................................................... 4

TECHNICAL DATA ................................................................................... 5

WIRING DIAGRAM................................................................................... 8

Component description ......................................................................... 8

Origo™ Mig L305 .................................................................................... 8

Origo™ Mig L405 .................................................................................... 10

DESCRIPTION OF OPERATION.............................................................. 13

P1 Digital instrument.............................................................................. 13

P1:1 Calibration and voltage correction ............................................... 13

P1:2 Connections to the digital instrument........................................... 14

SERVICE INSTRUCTIONS....................................................................... 15

What is ESD? .......................................................................................... 15

Thermal switch (thermostat) replacement procedure ........................ 15

Rights reserved to alter specifications without notice.

READ THIS FIRST

0349 300 067 -3- © ESAB AB 2020

READ THIS FIRST

The maintenance and repair work should be performed by an experienced person, and

electrical work only by a trained electrician. Use only recommended replacement parts.

This service manual is intended for use by technicians with electrical/electronic training for

help in connection with fault-tracing and repair.

Use the wiring diagram as a form of index for the description of operation. The circuit board

is divided into numbered blocks, which are described individually in more detail in the

description of operation. All component names in the wiring diagram are listed in the

component description.

This manual contains details of all design changes that have been made up to and including

November 2017.

The Origo™ Mig L305, Mig L405 are designed and tested in accordance with

international and European standard IEC/EN 60974-1 and EN 60974-10.

On completion of service or repair work, it is the responsibility of the person(s) etc.

performing the work to ensure that the product does not depart from the

requirements of the above standard.

INTRODUCTION

0349 300 067 -4- © ESAB AB 2020

INTRODUCTION

The Origo™ Mig L305, Mig L405 are step switched power sources designed for

MIG/MAG-welding together with wire feed units OrigoFeed.

The power units are fan-cooled and equipped with thermal overload protection.

The equipments can be fitted with an instrument that displays current and voltage.

It incorporates a hold function and can be calibrated.

TECHNICAL DATA

0349 300 067 -5- © ESAB AB 2020

TECHNICAL DATA

Valid for serial no. 628-,647-,211- and 331-xxx-xxxx

Mig L305 Mig L405 Mig L405

Voltage 400-415 V,

3~50/60Hz

400-415 V,

3~50/60Hz

230/400-415/500V 3~50Hz

230/440-460V 3~60Hz

Permissible load

at 100% duty cycle 150 A 280 A/28 V 280 A/28 V

at 60% duty cycle 190 A 365 A/32 V 365 A/32 V

at 50% duty cycle - 400 A/34 V 400 A/34 V

at 25% duty cycle 300 A - -

Setting range (DC) 30 A/15 V-300A/29V 50A/16.5V -

400A/34V

50A/16.5V - 400A/34V

Open circuit voltage 17-40 V 17-45 V 17-45 V

Open circuit power 190 W 360 W 360 W

with cooling unit - 600 W 600 W

Efficiency at max

current

69% 71% 71%

Power factor at max

current

0.97 0.98 0.98

Control voltage 42 V, 50/60 Hz 42 V, 50/60 Hz 42 V, 50/60 Hz

Dimensions l×w×h 782 × 425 × 830 812 × 552 × 925 812 × 552 × 925

Weight 89 kg 142 kg 143 kg

with cooling unit - 156 kg 156 kg

Operating

temperature

-10 to +40 °C -10 to +40 °C -10 to +40 °C

Transportation

temperature

-20 to +55 °C -20 to +55 °C -20 to +55 °C

Enclosure class IP 23 IP 23S IP 23S

Application class

Cooling unit (100% duty cycle) for Mig L405

25°C 40°C

P1L/min for 400–415 V 970 W 440 W

P1L/min for 230 V 940 W 430 W

Pmax 3.5 bar

Coolant ESAB ready mixed coolant (see the "ACCESSORIES" chapter in

the instruction manual)

Coolant quantity 5.5 l

TECHNICAL DATA

0349 300 067 -6- © ESAB AB 2020

Valid for serialno.730-xxx-xxxx and 746-xxx-xxxx

Mig L305 Mig L405 Mig L405

Voltage 400-415 V,

3~50/60Hz

400-415 V,

3~50/60Hz

230/400-415/500V 3~50Hz

230/440-460V 3~60Hz

Permissible load

at 100% duty cycle 150 A 280 A/28 V 280 A/28 V

at 60% duty cycle 190 A 365 A/32 V 365 A/32 V

at 50% duty cycle - 400 A/34 V 400 A/34 V

at 20% duty cycle 300 A - -

Setting range (DC) 30 A/15 V-300A/29V 50A/16.5V -

400A/34V

50A/16.5V - 400A/34V

Open circuit voltage 17-40 V 17-45 V 17-45 V

Open circuit power 190 W 360 W 360 W

with cooling unit - 600 W 600 W

Efficiency at max

current

69% 71% 71%

Power factor at max

current

0.97 0.98 0.98

Control voltage 42 V, 50/60 Hz 42 V, 50/60 Hz 42 V, 50/60 Hz

Dimensions l×w×h 782 × 425 × 830 812 × 552 × 925 812 × 552 × 925

Weight 79.5 kg 142 kg 143 kg

with cooling unit - 156 kg 156 kg

Operating

temperature

-10 to +40 °C -10 to +40 °C -10 to +40 °C

Transportation

temperature

-20 to +55 °C -20 to +55 °C -20 to +55 °C

Enclosure class IP 23S IP 23S IP 23S

Application class

Cooling unit (100% duty cycle) for Mig L405

25°C 40°C

P1L/min for 400–415 V 970 W 440 W

P1L/min for 230 V 940 W 430 W

Pmax 3.5 bar

Coolant ESAB ready mixed coolant (see the "ACCESSORIES" chapter in

the instruction manual)

Coolant quantity 5.5 l

Duty cycle

The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or

cut at a certain load without overloading. The duty cycle is valid for 40°C/104°F, or below.

Enclosure class

The IP code indicates the enclosure class, i.e. the degree of protection against penetration

by solid objects or water.

TECHNICAL DATA

0349 300 067 -7- © ESAB AB 2020

Equipment marked IP23 is intended for indoor and outdoor use.

Equipment marked IP 23S is intended for indoor and outdoor use; however, should not be

operated in precipitation.

Application class

The symbol indicates that the power source is designed for use in areas with increased

electrical hazard.

WIRING DIAGRAM

0349 300 067 -8- © ESAB AB 2020

WIRING DIAGRAM

Component description

CAUTION!

STATIC ELECTRICITY can damage circuit boards and

electronic components.

• Observe precautions for handling electrostatic

sensitive devices.

• Use proper static-proof bags and boxes.

Origo™ Mig L305

Component Description

C1, C2, CES Capacitor, 0.1 μF 250 V

EV1 Fan

HL1 Lamp, green, On/Off

HL2 Lamp, yellow. Thermal overload cutout

KM1 Main contactor 42 V, 50-60 Hz

L1 Inductor

AP2 Digital instrument, accessory

QF1 Switch, ON/OFF

R1 Resistor

R2 Varistor

RS1 Shunt, accessory

SA1 10-step switch, selection of welding voltage

ST1 Thermal overload cutout, opens at 120 °C. Mounted at the cooling fins of

the diode bridge.

ST2 Thermal overload cutout, opens at 160 °C. Mounted in the winding of

transformer TM1.

TC1 Control transformer.

TC2 Transformer for CO2heater, accessory.

TC3 Transformer for digital instrument, accessory.

TM1 Main transformer.

V1-V6 Diode bridge.

XS1 Connector, 15-pole. For connection to/from the wire feed unit.

XT1 3-pole terminal block.

XT2, XT3 Connector, flat pin.

WIRING DIAGRAM

0349 300 067 -9- © ESAB AB 2020

Origo™ Mig L305, 400-415 V

WIRING DIAGRAM

0349 300 067 - 10 - © ESAB AB 2020

Origo™ Mig L405

Component Description

C1-C3 Suppression capacitors 2 μF 450 V

C4 Capacitor, 3 μF 400V. Start and run capacitor for fan motor EV1.

C6, C7 Suppression capacitors, 0.1 μF 250V

EV1 Fan

HL1 Indicating lamp 42 V, white. Lights when switch QF1 is in the ON position.

HL2 Indicating lamp 42 V, yellow. Lights to indicate operation of the thermal

cutouts.

KM1 Contactor 42 V 50 Hz. Main contactor.

L1 Inductor.

M1 Pump, 230 V 50 Hz 0.2 kW. Only power sources with water cooling.

P1 Digital instrument.

QF1 Main ON/OFF switch.

QF2 Switch, for selecting welding voltage, 4-step.

QF3 Switch, for selecting welding voltage, 10-step.

R1 Resistor

RS1 Shunt 60 mV / 400 A, accessory.

SA1 Cooling water pump switch. Only on power sources with water cooling.

ST1 Thermal switch. 150 °C Protects the equipment against excessive

temperature. Mounted on inductor.

TC1 Control transformer.

TC2 Transformer for CO2heater, accessory.

TM1 Main transformer.

V1-V6 Diode bridge.

XS1 Connector, 15-pole. For connection to/from the wire feed unit.

XS2-XS5 Main welding current contact, single-pole.

XT1 3-pole terminal block.

XT2 9-pole terminal block.

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