Tweco 300 XT Ultra-Cut Plasma Cutting System - Manual (Page 114)

ULTRA-CUT 300 XT
A-� APPENDIX Manual 0-5274
APPENDIX 7: CNC
CNC functions
CNC I/O circuits provide at least 1000V galvanic isolation from the plasma power supply.
While the CNC circuits are isolated from the power supply, many of the signal returns on J15 and TB1, TB2 & TB3
are common to each other. J15 pins 1, 4, 5, 10, 17, and TB1-1, 5, 7, 9, and TB2-1 & 3 are all common. J15 pin 12
and TB2-10 are also connected to the others when SW� (OK to Move select) is set for voltage.
Rear Panel CNC Connector J15:
37 Circuit (Amp CPC) Remote Standard:
These are also duplicated on TB1, TB2 & TB3 use one or the other not both.
Chassis gnd (for SC-11 cable shield) 1
Start/Stop 3 (+); 4 (-)
Ok to Move (contacts or voltage 1) 12(-); 14 (+)
Divided Arc volts (selectable ratio
50:1; 40:1; 30:1; 1�.�:1, 25:1)
5 (-); � (+)
PreFlow ON 7 (+); 9 (-)
Corner Current Reduction 10 (+); 11 (-)
Isolated Circuit Comm (for SC-11) �
Chassis Gnd 13
Keying plug 15
Hold Start 1�(+); 17 (-)
Plasma Mark 21 (+); 22 (-)
Cut Expanded Metal 23 (+); 24 (-)
CNC Plasma Enable2 25 (+); 2� (-)
Remote Analog Current Control 3 29 (+); 30 (signal); 31 (-)
Stop (Latched) SW4 32 (+); 33 (-)(comm.)
Pilot is ON (contacts) 34; 35
Spare (contact) 3�; 37
1 SW� on CCM I/O PCB selects OK to Move for isolated contact closure or DC Volts (15-1�V) at <100ma. When
set for contacts, OK to Move circuit is rated for 120 VAC / 2� VDC
2Remove factory installed jumper from TB1-1 & 2 if using CNC Plasma Enable in J15.
3-5 See below.