Miller Syncrowave 250 DX Owner's Manual download pdf (Page 24)

OM-359 Page 18

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4-8. Automation 10-Pin Connection (Optional)

Socket Socket Information For 10-Pin Receptacle RC3

A Start/Stop

Y Turn off power before

connecting to receptacle

B Gas

connecting to receptacle

C Output disabled

D Chassis ground

E Final slope − collector

F Final slope − emitter

Turn off power before

G Pulse lockout − collector

Ref. ST-801 972-C

Y Turn off power before

connecting to receptacle

H Pulse lockout − emitter

connecting to receptacle

I Valid arc − collector

J Valid arc − emitter

Definitions Of Inputs And Outputs

Inputs

A - Closure to D starts the weld cycle. Opening closure stops weld cycle. Durning 2T operation, a momentary closure (greater than 100ms, but

less than 3/4 seconds) starts and stops weld output.

B - Closure to D turns on gas. This input will override Postflow, but if a Preflow time is entered, the Preflow cycle will time out before arc initia-

tion.

C - Closure to D must be maintained at all times. If the closure between pins C and D is broken, an output disable occurs, Postflow begins to

time out, and HELP 13 will be displayed on the meters.

Outputs

Outputs are isolated open-collector transistor which are able to conduct at least 6 mA of current, with a maximum of 100 mA of current and 30

VDC.

Final Slope - output is on when in Final Slope.

Pulse Lockout - output is on when in Initial Amperage, Initial Slope, Final Slope, Final Amperage, and when the pulse frequency is less than 10

Hz.

Arc On - output is on when the contactor is on and there is less than 50 load volts.

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Miller Syncrowave 250 DX Owner's Manual Page 24

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