Hypertherm HT4400 HySpeed Plasma Arc Cutting System - Manual (Page 114)

MAINTENANCE
HT4400 Instruction Manual 5-23
8
Relay Board LED Status
RUN Mode - Idle
D22
Power to
Choppers
D16
Analog PCB
power
D17
Start Circuit
Assy power
(Power Supply)
D18
Pump motor
enable
D20
Output
Enable
+12 VDC
Relay Board LED Status
RUN Mode - Cutting
D22
Power to
Choppers
D16
Analog PCB
power
D17
Start Circuit
Assy power
(Power Supply)
D18
Pump motor
enable
D12
SV-11 Plasma
cut-flow
(Valve Cluster) D11
SV-12 Plasma
off valve
(Valve Cluster) D19
SV-9 Shield
cut-flow
(Valve Cluster)
D20
Output
Enable
+12 VDC
D26
Arc on
D15
DC ON D14
CON1 D8
Start Counter