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Introduction to the Quaternary Pump
The Low-Pressure Pump Main Board (LPM)
Figure 46 Interconnection Diagram Low Pressure Main Board (LPM)
Motor
Encoder
AIV
MCGV
Z-panel
Motor drive
Hardware
switch
Inlet valve
drive
MCGV drive
C&D
Leak
converter
Electronic
fuse
Leak sensor
Fan
Damper
analog
Fan drive
Damper
converter
LPM
power
supply
Power
Z-panel
MCGV drive
A&B
Electronic
fuse
Processor
J16
+15 V
+36 V
+24 V
+24 V
+24 V
+36 V
+36 V
+36V
+24 V
+/-15V
+/-15V
+36 V
J17
J19
J30
J23
J25
J24
J3
J9
+/-15V
+5V
Electronic
fuse
Hardware
switch