Hypertherm XPR170, Instruction Manual

Page: 156 / 438

Connect for Communication
4
156 809480 Instruction Manual XPR300
Table 26 – Pinout for J19 on the discrete cable
1 Inputs are optically isolated. They require 24 VDC at 12.5 mA or dry-contact closure at 8 mA.
2 Outputs are optically isolated, open-collector transistors. The maximum rating is 24 VDC at 10 mA.
3 Although the plasma power supply has output capability, it is normally used solely as an input.
4 CNC +24 VDC provides 24 VDC at 200 mA maximum. A jumper is required on J17 to use 24 V power.
5 Shield ohmic contact is used to interface to plasma interface boards that have their own ohmic contact
circuit. Refer to How to use ohmic contact sense on page 193.
End A ( Figure 42 on
page 154)
J19 pin
Input/
Output
Signal Function Wire color
1
Output
2
Error + Notifies the CNC that an alert, error, or failure has
occurred. This signal is not intended to be used to
stop table motion. Orange
2 Error - Black
3
Output 2
Ready for start +
Notifies the CNC that the plasma power supply is
ready for the plasma start.
White
4 Ready for start - Red
5
Output
2
Auto pierce Notifies the CNC that the plasma power supply has
detected that the system has pierced through the
workpiece and is ready to begin motion.
Green
6 Auto pierce detect - Red
7
Output 5
Shield ohmic
c
Refer to notes below for further info.
Blue
8
Shield ohmic
contact -
Red