3-5. 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)

 

 

 

 

 

 

Weld Output

Welding

10 – 60%

60 – 100%

 

 

 

 

 

 

 

Duty

Duty

 

 

10 – 100% Duty Cycle

 

 

Terminals

Amperes

 

 

 

 

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

 

 

300

1

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-3/0

 

 

350

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-3/0

2-4/0

+

400

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-4/0

2-4/0

 

 

 

 

 

 

 

 

 

 

Output Receptacles

500

2/0

3/0

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-3/0

 

 

600

3/0

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-4/0

3-4/0

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.

S-0007-D

3-6. Remote 14 Receptacle Information

A

J

B

K

I

 

 

C

L N

H

D

M

G

 

E

F

ST-801 192

 

Socket*

Socket Information

24 VOLTS AC

A

24 volts ac. Protected by circuit breaker CB2.

 

 

 

B

Contact closure to A completes 24 volts ac con-

 

 

tactor control circuit.

115 VOLTS AC

I

115 volts ac. Protected by circuit breaker CB1.

 

 

 

J

Contact closure to I completes 115 volts ac con-

 

 

tactor control circuit.

 

C

Output to remote control; 0 to +10 volts dc, +10

 

 

volts dc in MIG mode.

REMOTE

D

Remote control circuit common.

OUTPUT

CONTROL

E

0 to +10 volts dc input command signal from re-

 

 

 

mote control.

 

H

Voltage feedback; +1 volt dc per 10 output recep-

A/V

 

tacle volts.

 

 

AMPERAGE

F

Current feedback; +1 volt dc per 100 amperes.

VOLTAGE

 

 

 

M

CC/CV select (CC/CV models only).

 

G

Circuit common for 24 and 115 volts ac circuits.

GND

K

Chassis common.

 

*The remaining sockets are not used.

OM-193 084 Page 16

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Miller Electric OM-193 084E Weld Output Terminals And Selecting Cable Sizes, Remote 14 Receptacle Information, Socket