Miller Electric 1000, 1250 manual Weld Output Terminals And Selecting Cable Sizes

Models: 1250 1000

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4-8. Weld Output Terminals And Selecting Cable Sizes

Y ARC WELDING can cause Electromagnetic Interference.

To reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on the floor. Locate welding operation 100 meters from any sensitive electronic equipment. Be sure this welding machine is installed and grounded according to this manual. If interference still occurs, the user must take extra measures such as moving the welding machine, using shielded cables, using line filters, or shielding the work area.

 

 

 

 

 

Total Cable (Copper) Length In Weld Circuit Not Exceeding

 

 

 

 

 

100 ft (30 m) Or Less

150 ft

200 ft

250 ft

300 ft

350 ft

400 ft

 

 

 

 

(45 m)

(60 m)

(70 m)

(90 m)

(105 m)

(120 m)

 

 

 

 

 

 

Turn Off power before

Welding

10 − 60%

60 − 100%

 

 

 

 

 

 

connecting to weld output

 

 

 

 

 

 

Duty

 

 

10 − 100% Duty Cycle

 

 

 

terminals.

Amperes

Duty Cycle

 

 

 

 

 

Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

4

4

4

3

2

1

1/0

1/0

 

 

 

150

3

3

2

1

1/0

2/0

3/0

3/0

 

 

 

200

3

2

1

1/0

2/0

3/0

4/0

4/0

 

 

 

250

2

1

1/0

2/0

3/0

4/0

2-2/0

2-2/0

Positive

 

Negative

300

1

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-3/0

Low

 

 

350

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-3/0

2-4/0

Inductance Positive

 

 

 

 

 

 

 

 

 

 

High

400

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-4/0

2-4/0

 

Inductance

 

 

 

 

 

 

 

 

 

 

 

 

 

500

2/0

3/0

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-3/0

Positive

Low

Inductance

600

3/0

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-4/0

3-4/0

700

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-4/0

3-4/0

4-4/0

used for all applications.

Positive

High

Inductance

800

4/0

2-2/0

2-3/0

2-4/0

3-4/0

3-4/0

4-4/0

4-4/0

 

 

 

 

 

 

 

 

 

used for GTAW (TIG) And

900

2-2/0

2-3/0

2-4/0

3-3/0

3-4/0

4-4/0

4-4/0

 

SMAW (Stick) applications.

 

 

 

 

 

 

 

 

 

 

 

 

 

1000

2-2/0

2-3/0

2-4/0

3-3/0

4-3/0

4-4/0

 

 

 

 

 

1250

2-3/0

2-4/0

3-3/0

4-3/0

4-4/0

 

 

 

*Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. Contact your distributor for the mm2 equivalent weld cable sizes.

4-9. Remote 14 Receptacle And Terminal Strip 1T Information

 

Socket

Terminal

Information

 

A

A

24 volts ac. Protected by circuit breaker CB2.

24 VOLTS AC

B

B

Contact closure to A completes 24 volts ac contactor control circuit.

 

 

C

C

Command reference; 0 to +10 volts dc (CC), +10 volts dc (CV).

REMOTE OUTPUT CONTROL

D

D

Remote control circuit common.

 

E

E

0 to +10 volts dc input command signal from remote control.

 

F

*

Current feedback; 0 to +10 volts dc, 1 volt per 100 amperes.

 

H

*

Voltage feedback; 0 to +10 volts dc, 1 volt per 10 arc volts.

115 VOLTS AC

I

I

115 volts, 15 amperes, 60 Hz ac. Protected by circuit breaker CB1.

J

J

Contact closure to I completes 115 volts ac contactor control circuit.

 

GND

K

K

Chassis common.

G

*

Circuit common for 24 and 115 volts ac circuits.

 

REMOTE POWER ON/OFF

*

L

To remote On/Off switch.

*

M

 

 

REMOTE VOLTAGE SENSING

*

N

Voltage sensing signal from Negative (−) weld output terminal.

*

P

Voltage sensing signal from Positive (+) weld output terminal.

 

* Not Used

 

 

 

OM-2223 Page 17

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Miller Electric 1000, 1250 manual Weld Output Terminals And Selecting Cable Sizes

1250, 1000 specifications

Miller Electric is a renowned name in the welding and fabrication industry, providing high-quality machines and equipment that cater to a range of applications. Among its impressive line of products are the Miller Electric 1000 and 1250 arc welding machines, designed to offer exceptional performance in both industrial and commercial environments.

One of the main features of the Miller Electric 1000 model is its robust construction, making it ideal for heavy-duty welding tasks. It boasts a powerful output that provides a significant range of welding power, accommodating various electrode sizes and types. This flexibility allows for effective use in a variety of welding processes, including Stick, TIG, and MIG, ensuring that users can tackle a wide array of jobs without needing multiple machines.

The Miller Electric 1250 takes things a step further, delivering even more power and efficiency. With advanced inverter technology, the 1250 offers increased duty cycles and improved energy efficiency, which can lead to cost savings over time. The inverter design also allows for a lighter weight compared to traditional transformer-based machines, enhancing portability and ease of use on job sites.

Both models are equipped with intuitive digital controls and advanced monitoring systems, allowing users to make precise adjustments easily. Features like the Auto-Set functionality simplify the setup process, enabling welders to select materials and thicknesses, and the machine automatically adjusts parameters for optimal results. This is especially beneficial for those who may not have extensive experience, providing a level of confidence in achieving high-quality welds.

Another important characteristic of both the 1000 and 1250 is their adaptability to different environments. They are designed to withstand challenging conditions, including extreme temperatures and dust, making them suitable for outdoor applications and remote job sites. Additionally, Miller Electric prioritizes user safety and comfort, incorporating features like integrated thermal overload protection and ergonomic designs that reduce operator fatigue during prolonged use.

In summary, the Miller Electric 1000 and 1250 arc welding machines represent the pinnacle of modern welding technology. With their powerful output, advanced features, and durable construction, they are well-suited for a range of industrial applications. Whether for routine maintenance or heavy fabrication tasks, these machines deliver reliability and precision, essential for any professional welder.