Remote Output Control; Remote Power On/Off; Weld Output Terminals And Selecting Cable Sizes; Remote 14 Receptacle And Terminal Strip 1T Information - Miller GOLDSTAR 302 Owner's Manual

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.
Turn Off power before
connecting to weld
output terminals
Electrode Electrode Work Work
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.

3-6. Remote 14 Receptacle And Terminal Strip 1T Information

24 VOLTS AC 24 VOLTS AC

REMOTE OUTPUT CONTROL

115 VOLTS AC 115 VOLTS AC
GND

REMOTE POWER ON/OFF

REMOTE POWER ON/OFF
REMOTE VOLTAGE SENSING REMOTE VOLTAGE SENSING
* Not Used
OM-222 Page 10
Total Cable (Copper) Length In Weld Circuit Not Exceeding
100 ft (30 m) Or Less
10 − 60% 60 − 100%
Welding
Duty Duty
Amperes
Cycle Cycle
100 4
150 3
200 3
250 2
300 1
350 1/0
400 1/0
500 2/0
600 3/0
700 4/0
800 4/0
Socket Terminal
A A
B B
C C
D D
E E
F
H
I
J
K K
G
* L
* M
* N
* P
150 ft 200 ft
(45 m) (60 m)
4 4 3
3 2 1
2 1 1/0
1 1/0 2/0
1/0 2/0 3/0
2/0 3/0 4/0
2/0 3/0 4/0
3/0 4/0 2-2/0
4/0 2-2/0 2-3/0
2-2/0 2-3/0 2-4/0
2-2/0 2-3/0 2-4/0
24 volts ac. Protected by circuit breaker CB2.
Contact closure to A completes 24 volts ac contactor control circuit.
Command reference; 0 to +10 volts dc.
Remote control circuit common.
0 to +10 volts dc input command signal from remote control.
* Current feedback; 0 to +10 volts dc, 1 volt per 100 amperes.
* Voltage feedback; 0 to +10 volts dc, 1 volt per 10 arc volts.
I 115 volts, 15 amperes, 60 Hz ac. Protected by circuit breaker CB1.
J Contact closure to I completes 115 volts ac contactor control circuit.
Chassis common.
* Circuit common for 24 and 115 volts ac circuits.
To remote On/Off switch To remote On/Off switch.
Voltage sensing signal from Negative (-) weld output terminal.
Voltage sensing signal from Positive (+) weld output terminal.
250 ft 300 ft 350 ft
(70 m) (90 m) (105 m)
10 − 100% Duty Cycle
2 1 1/0
1/0 2/0 3/0
2/0 3/0 4/0
3/0 4/0 2-2/0
4/0 2-2/0 2-3/0
2-2/0 2-3/0 2-3/0
2-2/0 2-3/0 2-4/0
2-3/0 2-4/0 3-3/0
2-4/0 3-3/0 3-4/0
3-3/0 3-4/0 3-4/0
3-4/0 3-4/0 4-4/0
Information
400 ft
(120 m)
1/0
3/0
4/0
2-2/0
2-3/0
2-4/0
2-4/0
3-3/0
3-4/0
4-4/0
4-4/0
S-0007-D