Hypertherm HT4001 Plasma Arc Cutting System - Manual (Page 153)

MAINTENANCE
6-98
HT4001
Instruction Manual 6-27
Figure 6-9 Relay Board PCB4 in RUN Mode
RHF Inj. Wtr
(SV6 in RHF Csl) Plasma OFF
(SV5 near torch) Cutflow
(SV4A in MV Csl)
+ 12 VDC
Output
Enable
Relay Board LED Status
Run Mode – O
2
or N
2
Start Counter CON1
(in HT4001) LT2
(in HT4001)
Slave 200A
(when in use)
Slave On
(when in use)
Arc On
Slave 400A
(when in use)
O2 Cutflow
(SV1A in Gas Csl)