Pump motor drive board pcb7, Pump motor drive board pcb7 -44 – Hypertherm HPR800XD Auto Gas Rev.2 User Manual
Page 258

Maintenance
5-44
HPR800XD Auto Gas –
806500
Pump motor drive board Pcb7
D1
D30
D32
D10
D31
TP3
TP10
TP4
TP2
TP1
TP6
TP12
TP5
D35
D36
14102
7
control Pcb test points
Test point
number Description
Test point
number Description
Test point
number Description
TP1
Analog ground
TP5
+ 5 V
TP9
Digital ground
TP2
Digital ground
TP6
A + 3.3 V
TP10
+ 3.3 V
TP3
Reset\
TP7
+ 3.3 V
TP11
SCIRXD
TP4
Reset
TP8
SCITXD
TP12
LINEFB +
control Pcb lED list
LED
Description
Status
D1
+ 15 V OK
On when +15 voltage is OK
D10
+ 5 V OK
On when +5 voltage is OK
D16
+ 3.3 V OK
On when +3.3 voltage is OK
D30
IPM temperature alarm output
Off when OK. On when there is a sustained over-current condition.
D31
Temperature
Off when OK. On when there is a temperature fault.
D32
IPM alarm output
Off when OK. On when there is an internal overtemp, over-current, or bad gate
supply-drive voltage.
D35
Pump motor drive OK
On when pump-motor-drive is OK
D36
Pump motor drive enable
On when enabled
Note: The inductor on the pump motor-drive board makes a noise during operation that has been
described as a “hum”, “sing”, and “click”. This is normal and can be disregarded.