a-2 HD3070 with Automatic Gas Console Instruction Manual
16
APPENDIX A
Power Supply CNC Interface Signals
Power Supply Connector 1X1 Standard Interface
SIGNAL PIN # POL DESCRIPTION
EXTERNAL 16 + CNC MUST PROVIDE A CLOSED CKT TO ALLOW POWER
INTERLOCK 17 - SUPPLY OPERATION. 12VDC, 80MA SINK REQUIRED.
INPUT 18 SHLD
1/50 ARC 33 + SIGNAL PROPORTIONAL TO ARC VOLTS 4VDC OUTPUT WITH
VOLTAGE 28 - 200Vdc ARC. OUTPUT IS ISOLATED AND FLOATING.
OUTPUT 27 SHLD
INTERLOCKS 35 DRY DRY CONTACT CLOSURE THAT IS CLOSED WHEN ALL
OK 30 DRY POWER SUPPLY INTERLOCKS ARE SATISFIED.
OUTPUT 24 SHLD
TRANSFER 32 DRY DRY CONTACT CLOSURE THAT IS CLOSED WHEN
OUTPUT 37 DRY TRANSFER OCCURS. USED TO START PIERCE COMPLETE
26 SHLD AND MACHINE MOTION TIMING.
POWER ON 29 + CNC MUST PROVIDE A CLOSED CKT TO POWER UP
INPUT 34 - THE POWER SUPPLY. CNC SHOULD MAINTAIN UNTIL
23 SHLD INTERLOCKS OK OUTPUT BECOMES ACTIVE AND THEN OK
OUTPUT BECOMES ACTIVE AND REMOVE. IF INTERLOCKS
OK OUTPUT IS NOT RECEIVED IN A REASONABLE TIME (20
SEC) THEN CHECK INDIVIDUAL INTERLOCKS. 12V dc, 80mA
SINK REQUIRED.
PLASMA ON 15 DRY CNC MUST INITIATE DRY CONTACT CLOSURE TO START
INPUT 9 DRY AND OPERATE PLASMA.
14 SHLD
POWER OFF 8 + CNC SHOULD PROVIDE A MOMENTARY CLOSED CIRCUIT
INPUT 4 - TO POWER DOWN THE POWER SUPPLY. INPUT IS 12V dc
13 SHLD AND REQUIRES SINKING 80mA.
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