concise manual - CandCNC

-21234567+LCTHC SIGNAL NAMETorch Fire Signal(POS)THC Down SignalTHC UP SignalTorch Fire Signal (NEG)ARC OKCONNECTS TO:Output1THC DownTHC UpINPUT CommonTHC ONRECOMMENDED PINPort 1 pin 17Port 1 pin 12Port 1 pin 13Port 1 pin 18Port 1 pin 11CONNECTORPIN NUMBER1234567SIGNAL NAMEARC OKOUTPUT COMMONOutput PullupTHC UpTHC DownTorch Fire -Torch Fire +USED FORSends signal Back to MACH to trigger ARC OK (THCON) signal. REQUIRED for THCCOMMON (RETURN) For all of the LCTHC Ouputs.Typically tied to the INPUT of the BOB CommonUsed to supply pullup bias for the outputs when tied toinputs to the PC without a source of + See NotesSends signal Back to MACH For UP (THC UP) signal.REQUIRED for THCSends signal Back to MACH For DOWN (THC DOWN)signal. REQUIRED for THCTORCH ON - is the negative side of the input isolator. It has tobe at a voltage of 0 to turn on the OptoTORCH ON + is the positive side of the input isolator. It has tobe at a voltage of +5 to +12 to turn on the OptoTORCH FIRE BiasVOLTS (+5 to +12)Torch fire signalfrom PC (MACH)THC DOWN SignalTo BoB InputTHC UP SignalTo BoB inputInput Common ofBOB or PC. READ the box above!ARC OK FromLCTHCNEG 12V Bias (wallplug)OUTPUT COMMONPOS + 12VDC Bias (wallplug)1+ +REV 8 NOTES: The input (TORCH FIRE) signal is nowseparate from the Output circuit. The input requires apower source on INPUT + [pin4] (+5 to +12 VDC) that hasthe same common (gnd) as the signal that fires the torch[pin3] in most cases that will be +5 from the PC.Page 23