Emerson Process Management CFA-3000 Benutzerhandbuch

Keypad Panel Door

Opens to access card  
cage

Display Board 

Circuit board contains
electronics for keypad  
and LCD display

CPU Board
180­B028­01

Central processing circuit
board processes the 
signal fed to the digital
display and any external
devices. (Yellow ejector)

Valve Board
180­B016­01
(only supplied for 
multi­stream option or for
RS­232 output on single
stream)

Circuit board controls
multi­stream accessory.
Jumper should be
installed on back of valve
board. (Purple ejector) 

Analog Board
180­B025­02 
For multi­stream 
configurations: 
180­B025­01* 

Circuit board converts
signals from analog to
digital and processes 
signals from "fault" detec­
tors (Orange ejector)

Power Supply Board
180­B012­03

Supplies voltage to
electrical circuitry
(Blue ejector)

The card cage is located directly behind the keypad
panel. To access the card cage, lift latches from right
side of keypad panel and open hinged door. (Refer to
Figure 7­2.)

7.3.1 Card Cage and Door
Table 7­4:  Card Cage Parts

0Vdc ­ 5Vdc  Connector To recording device.

4mA –20mA Connector 

To recording device.

Computer Memory Reset Clears microprocessor 

memory

Computer Memory Reset Clears microprocessor  

memory

Valve Pump Connector

Connector for cable from  
valve pump

Display Board Cable  
Connector

Connector for display    
board cable

Potentiometer

Adjusts sensitivity of leak
detector – clockwise for
less sensitivity; 
counter­clockwise for
greater sensitivity

Analog Board DIP Switch Contains 8 rocker switches

for setting various 
functional processes 
(see Figure 7­3)

Signal Input Connector

For process signals

On 180­B025­01: 20
multi­stream output
potentiometers

For each stream 2 – 6,
potentiometers for 4 mA,
20 mA, 0 V, 5 V
(multi­stream only)

Multi­stream Panel
Connector

Connector for cable 
connector from display
board

Table 7­5: CPU Board Components

7.3.3   Analog Board 
Table 7­6:  Analog Board Components 

7.3.4 Valve Board  
Table 7­7:  Valve Board Components 

18­pin Female Connector For relays

6­pin Male Connector

Operating power

6­pin Female Connector

Valve Pump Power

Table 7­8  Power Supply Board