ARCMASTER 401MST POWER SOURCE
INSTALLATION, OPERATION AND SETUP
3-10
Manual 0-5287
14 19 Pin Remote Control Socket
The 19 pin Remote Control Socket is used to connect Remote Control devices or wire feeders that use a
19 pin connection to the welding Power Source. To make connections, align keyway, insert plug, and rotate
threaded collar fully clockwise.
Pin
Function
Description
A
+16VDC contactor
16 VDC supply voltage for contactor. Connect A & B for contactor enable
B
Contactor in
Contactor input. Connect A & B for contactor enable
C
Volt Meter
Voltage feedback. 1Vout/10Varc
D
24VAC
E
115VAC
F
24/115VAC neutral
VAC neutral
G
Ground
H
+10VDC remote ctrl
10 VDC for remote potentiometer supply
J
Remote Input
0<=Vin<=10V
K
Remote ctrl ground/common Also control circuit common
L
BF04 ground / common
M
12VDC arc established
+12 VDC while welding active, otherwise off
N
Ground / common
P
24VAC
R
N VAC
24/115VAC neutral and chassis ground
S
CAN_high
CAN bus; positive signal
T
CAN_low
CAN bus; negative signal
U
Amp Meter
Current feedback. 1Vout/100AAout
V
+24VDC
+ 24VDC CAN supply
Table 3-3 19 Pin Interconnection Control Plug Configuration, 401MST
15 ON/OFF Switch
This switch connects the Primary supply voltage to the inverter when in the ON position. This enables the
Power Supply.
!
WARNING
When the welder is connected to the Primary supply voltage, the internal electrical components may
be at 500V potential with respect to earth.
16 Input Cable
The input cable connects the Primary supply voltage to the equipment.
17. 2.5A Circuit Breaker
2.5A Circuit Breaker is for the 115 VAC auxiliary power connected to 14 pin or 19 pin remote control socket.
18. 10A Circuit Breaker
10A Circuit Breaker is for the 24 VAC auxiliary power connected to 14 pin or 19 pin remote control socket.
