Tweco 300 XT Ultra-Cut Plasma Cutting System - Manual (Page 115)

ULTRA-CUT 300 XT
Manual 0-5274 APPENDIX A-9
Internal CNC connections. TB1, TB2 & TB3 on CCM module.
Connections are provided on the CCM module TB1, TB2 & TB3 terminal blocks including most of the rear panel
functions plus some additional features. All these signals are isolated from the plasma power supply but signals
marked (comm.) and (-) are common to each other.
Users are expected to install their own CNC cable to these connections. Knockout hole is provided in rear panel of
CCM module. User shall provide strain relief / cord grip for user installed cable.
TB1
Function
Connection
CNC Enable/Disable TB1-2 (+), TB1-1(-)(comm.)
OK to Move 2 TB1-3 &TB1-12 Contacts only, rated 1A @ 2� VAC/DC
Stop Latched (NC) 4 TB1-4 (+) & TB1-5 (-) (comm.) used with Start Latched
Start/Stop Ret 4 TB1-� (+), TB1-5 (-) (comm.)
or Start Latched (NO) 4 TB1-� (+), TB1-5 (-) (comm.) used with Stop Latched
Divided Arc Voltage TB1-� (+), TB1-7 (-) comm.
Remote Analog Current Control TB1-9 Analog Comm. (-) or 10K CC Pot low
TB1-10 Analog in (+) or CC Pot Wiper
TB1-11 10K CC Pot Hi (+10V @ 1 ma. Supply)
TB2
Function
Connection
Hold Start TB2-2 (+),TB2-1 (-) (comm. )
Preflow ON TB2-4 (+), TB2-3 (-) (comm.)
Pilot is ON (contacts) TB2-�, TB2-� rated 1A @ 120 VAC or 2� VDC
OK to Move (contacts or DC Volts) TB2-12 (+), TB2-10 (-)
TB3
Function
Connection
Plasma Marking TB3-2(+), TB3-1(-) (comm.)
Corner Current Reduction TB-4(+), TB3-3(-)(comm.)
Cut Expanded Metal TB3-�(+), TB3-5(-)(comm.)
Spare NO Contact TB3-7, TB3-�
Spare NC Contact TB3-9, TB3-10
Spare NO Contact TB3-11, TB3-12