Hypertherm MAX200 Machine Torch Plasma Arc Cutting System - Handbuch (Seite 140)

Max200 Timing Chart
Con1 Main Contactor
V1 Plasma Pre/Post flow solenoid valve
V2 Shield gas solenoid
V3 Plasma step gas solenoid valve
V4 Cap-On-Sense solenoid valve
V9 Plasma charging valve
PB1 Power On switch
PB2 Power Off switch
PS3 Plasma gas outlet pressure switch. N.O. switch that
closes when the plasma gas pressure exceeds 3 psi.
PS4 Quick charge pressure switch. N.C. switch that opens
when plasma gas reaches 26 psi.
Start Plasma start signal from CNC
Stop Plasma stop signal from CNC
Xfer Arc Transfer
Post-Flow 1 second gas flow at end of cycle.
Note:
1. In test mode, V1, V2, and V3, are the only valves that are active.
2. When V1 becomes active after start, 10 to 15 psi will be registered
at PG1.
3. The HV transformer is activated 2 seconds after the plasma start
signal. It will stay active for 5 seconds or until the arc transfers to
the work piece, which ever happens first.