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OM-1588 Page 14
4-7. Control Box Connections
ST-800 177-A / Ref. ST-800 175
1 Optional Reed Relay
Connection
2 Wire Feed Motor And Gas
Valve Control Receptacle
3 Wire Feed Motor And Gas
Valve Control Plug From
Boom
4 14-Pin Cord
5 Volt Sense Lead (Optional
Use)
6 Gun Trigger Plug From Boom
4
1
5
3
2
2
6
4-8. 14-Pin Plug Information
Pin* Pin Information
A 24 volts ac with respect to socket G.
B Contact closure to A completes 24 volts ac contactor control circuit.
AJ
G Circuit common for 24 volts AC circuit.
AJ
B
K
I
C +10 volts dc output to remote control with respect to socket D.
C
L
NH
D
M
G
D Remote control circuit common.
D
M
G
E
F
E 0 to +10 volts dc input command signal from remote control with respect to socket D.
E
F
H Voltage feedback; 0 to +10 volts dc, 1 volt per 10 arc volts.
F Current feedback; 0 to +10 volts dc, 1 volt per 100 amperes.
M CC/CV Select (+24 V = CV)
N Inductance (0-10 V)
*The remaining pins are not used.