Hypertherm XPR300 - How to Use Ohmic Contact Sense; Internal Ohmic Contact Sense; Ohmic Relay Overview

Connect for Communication
4
XPR300 Instruction Manual 809480 193
How to use ohmic contact sense
Ohmic relay overview
 The relay is normally open when not powered.
 The relay is closed during operation, except during ignition or cutting with water processes.
 Ohmic contact is disabled when cutting with a water process.
 Ohmic contact is disabled when the remote on-off switch is in the OFF position.
Internal ohmic contact sense
This is the default installation for the torch and torch connect console. No action is required.
Figure 53 – Internal ohmic diagram
J4
J3
J2
J27
J1
7
8
9
1
2
3
4
5
6
1 0
11
1 Torch
2 Ohmic wire, inside torch and torch lead
3 Torch connect console
4 Ohmic wire, torch receptacle to ohmic relay
5 Ohmic relay
6 Ohmic wire, ohmic relay to J3
7 Ohmic PCB
8 J1 to J27 wires
9 Control PCB
10 CAN connection
11 2 ground connections (required)