
Pressure
Controller/Calibrator
Theory of Operation
13
Electrical
Figure 3 shows the electrical power distribution inside the Product chassis.
24 V dc power is the primary power distributed inside the chassis. Each module
uses the 24 V dc power to create the specific voltage supplies required. Each
module is isolated or filtered to provide appropriate power for the module
requirements.
RS-232 / GPIB/
USB Device / Ethernet
CANbus
Main Processor
Back Panel
Manifold PCAs
Drivers:
4 External
Drivers:
14 External
Switch In /
Ext.Drivers
AC Power
Entry Module
Fused
MOV
ac / 24 Vdc
110 Watts
24 Vdc
24 V / 5 V /
3.3 V
Iso 24 V / 12 V
LCD / Touch / Keypad
Chassis Power
PMM PCM
... x5
μP
Front Panel Process
CANbus /
ID pin
iso
PCA
1/2 W sol.
Driver
A/D
Filtered
24 Vdc
Valves
P
Sensor
P
CANbus / ID Pin iso
24 Vdc to 5/12/-12 Vdc
Switch
P
P
hxn308.eps
Figure 3. Electrical Block Diagram
Содержание 6270A
Страница 5: ...Contents continued iii Inspect and Replace the CPS valves 122 Replacement Parts 124 Screw Torque 136...
Страница 6: ...6270A Service Manual iv...
Страница 26: ...6270A Service Manual 20 2 1 3 hxn212 eps Figure 7 PMM and PCM Removal...
Страница 30: ...6270A Service Manual 24 1 2 3 hxn205 eps Figure 9 Manifold Installation...
Страница 32: ...6270A Service Manual 26 2 1 1 hxn202 eps Figure 10 Remove Feet and Tilt Stands...
Страница 37: ...Pressure Controller Calibrator Module Guide Rails 31 1 2 3 hxn209 eps Figure 13 Remove Module Guide Rails...
Страница 40: ...6270A Service Manual 34 hxn208 eps Figure 16 Remove the CPU...
Страница 43: ...Pressure Controller Calibrator Module Guide Rails 37 8 9 10 hxn219 eps Figure 18 Dock Assembly...
Страница 47: ...Pressure Controller Calibrator Module Guide Rails 41 2 3 1 4 6 7 5 8 hxn215 eps Figure 21 Remove B Series Valve...
Страница 53: ...Pressure Controller Calibrator Power Supply and Fan 47 3 1 2 4 hxn221 eps Figure 25 Remove Power Supply...
Страница 64: ...6270A Service Manual 58 1 2 3 4 5 7 6 hxn210 eps Figure 32 Remove Latch Assembly...
Страница 67: ...Pressure Controller Calibrator PCM Assembly 61 2 1 hxn401 eps Figure 34 Module Components...
Страница 138: ...6270A Service Manual 132 9 2 5 18 7 9 8 2x 9 5x 3 4x 4 3x 7 2x 11 12 13 6 10 hxn509 eps Figure 56 PMM CAL KIT 20M Parts...