Weld Output Terminals And Selecting Cable Sizes; Remote 14 Receptacle Information - Miller Dynasty 300 SD Owner's Manual

4-6.

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.
Weld Output
Terminals
Y Turn off power before
connecting to weld out-
put terminals.
Y Do not use worn, dam-
aged, undersized, or
poorly spliced cables.
Electrode
Work
This chart is a general guideline and may not suit all applications. If cable overheats, use next size larger cable.
*
**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.
2
( ) = mm for metric use
***Select weld cable size for pulsing application at peak amperage value.
4-7.

Remote 14 Receptacle Information

A A J J
K
I
B
C L N
H
M
D G
F F
E
*The remaining sockets are not used.
If a remote hand control (RHC-14) is connected to this Remote 14 receptacle and the remote control is set at minimum when the welding power
source is turned on, the Sequencer function is disabled.
OM-358 Page 14
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
100 ft (30 m) or Less
10 − 60% 60 − 100%
Welding
Duty Duty
Amps***
Cycle Cycle
100 4 (20) 4 (20)
150 3 (30) 3 (30)
200 3 (30) 2 (35)
250 2 (35) 1 (50)
300 1 (50) 1/0 (60)
350 1/0 (60) 2/0 (70)
24 VOLTS DC 24 VOLTS DC
REMOTE REMOTE
OUTPUT
CONTROL CONTROL
AMPERAGE
VOLTAGE
ST-802 135-B
CHASSIS
Not Exceeding
150 ft 200 ft
(45 m) (60 m)
4 (20) 3 (30)
2 (35) 1 (50)
1 (50) 1/0 (60)
1/0 (60) 2/0 (70)
2/0 (70) 3/0 (95)
3/0 (95) 4/0 (120)
Socket*
A Contactor control, 24 volts dc.
B Contact closure to A completes 24 volts dc
contactor control circuit, and enables output.
C Output to remote control; 0 to +10 volts dc output
to remote control.
D Remote control circuit common.
E 0 to +10 volts dc input command signal from
remote control.
F Current feedback; +1 volt dc per 100 amperes.
A/V A/V
H Voltage feedback; +1 volt dc per 10 output
receptacle volts.
G Reference to pin A
GND
K Chassis common.
250 ft 300 ft 350 ft
(70 m) (90 m) (105 m)
10 − 100% Duty Cycle
2 (35) 1 (50) 1/0 (60)
1/0 (60) 2/0 (70) 3/0 (95)
2/0 (70) 3/0 (95) 4/0 (120) 4/0 (120)
2 ea. 2/0
3/0 (95) 4/0 (120)
(2x70)
2 ea. 2/0 2 ea. 3/0
4/0 (120)
(2x70) (2x95)
2 ea. 2/0 2 ea. 3/0 2 ea. 3/0
(2x70) (2x95) (2x95)
Socket Information
400 ft
(120 m)
1/0 (60)
3/0 (95)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 4/0
(2x120)
S-0007-E−