ASP sterrad NX, Service & Troubleshooting Manual

Page: 22 / 126

3
Functional Description
Functional Block Diagram
A functional block diagram of the STERRAD NX Sterilizer is illustrated
in the following figure.
AC POWER
CONFIGURATION,
DISTRIBUTION &
CONTROL
PEROXIDE
DELIVERY
Piercing motor
PLASMA CONTROL
INTERFACE BOARD
DC Power Supply
DOOR CONTROL
Guide Motor
UL
C
C
B
O
AR
D
(S
YS
T
E
M
S
O
FT
W
A
R
E
)
VGA
An
al
og Out
put
D
ig
ita
l I
nput
Di
gi
ta
l Out
put
An
al
og
Inpu
t
Power Condition
USER INTERFACE
VGA
Touch Interface
PRINTER
Serial Interface
Synchronization
DC Power & Filter
Serial Interface
Status & Control
DC Power & Filter
Status & Control
Analog Input & Filter
Safety circuit
Status & Control
Analog Input & Filter
Status & Driver
DC Power
Status & Control
Analog Input & Filter
DC Power
Status & Control
Analog Input & Filter
DC Power
Status & Control
Analog Input, Output &
Filter, DC Power
T
e
st
p
oi
nt
s,
LED st
at
us
, Buf
fe
rs
, Filt
e
rs,
Dr
iv
ers,
B
eep
er
HEATING CONTROL
Heaters
Thermistors
VACUUM CONTROL
Vacuum Pump
Pressure
Transducer
ATM Switch
Vacuum Valve
Vent Valve
PEROXIDE
MONITOR
Air pump
Delivery valve
CONDENSOR
FANS
TE Driver
Status & Control
DC Power & Filter
Vaporizer
Cassette sensor
Scaner
Serial Interface
Status & Control
DC Power & Filter
Figure 2. Functional Block Diagram
22 STERRAD
®
NX
™
Service Guide