Emerson Process Management 3000 - Manual (Page 159)

Instruction Manual
Appendix E Rev. 4.5
June 1999
Rosemount Analytical Inc. A Division of Emerson Process Management Appendices E-11
World Class 3000
u. Connect cable (1) to the receptacle on mi-
croprocessor board (11). Reconnect GUI
assembly cable to receptacles on micro-
processor board if IFT is equipped with GUI.
v. Replace protective cover (13) and secure
with washers (15) and screws (14).
w. Close cover door (16) and secure with
screws (17).
E-9 MICROPROCESSOR BOARD
REPLACEMENT
Disconnect and lock out power before
working on any electrical components.
There is voltage up to 240 Vac, and
could cause personal injury.
a. Turn off power to the system.
b. Open cover door (16) of the IFT by re-
moving screws (17).
c. Remove protective cover (13) by removing
screws (14) and washers (15).
d. Disconnect cable (1) from the receptacle on
microprocessor board (11). Disconnect GUI
assembly cable from receptacles on micro-
processor board if IFT is equipped with GUI.
e. Remove microprocessor board (11) by re-
moving screws (2) and nylon washers (19).
Pull up very carefully on the micro-
processor board to ensure that none
of the pins in the connection between
the microprocessor board and inter-
connect board are damaged.
f. Connect the new microprocessor board (11)
to the interconnect board (12) by carefully
lining up the pins on the plug.
g. Attach microprocessor board (11) to
mounting plate (10) with screws (2) and ny-
lon washers (19).
h. Reconnect cable (1) to receptacle on micro-
processor board. Reconnect GUI assembly
cable to receptacles on microprocessor
board if IFT is equipped with GUI.
i. Replace protective cover (13) and secure
with washers (15) and screws (14).
j. Close cover door (16) and secure with
screws (17).
E-10 INTERCONNECT BOARD REPLACEMENT
Disconnect and lock out power before
working on any electrical components.
There is voltage up to 240 Vac, and
could cause personal injury.
a. Turn off power to the system.
b. Open cover door (16) of the IFT by remov-
ing screws (17).
c. Remove protective cover (13) by removing
screws (14) and washers (15).
d. Carefully tagging wires, remove the wires
from terminal strip on interconnect board
(12).
e. Remove interconnect board (20) by remov-
ing screws (2) and washers (3).
Pull down very carefully on the inter-
connect board to ensure that none of
the pins in the connection between the
microprocessor board and intercon-
nect board are damaged.
f. Connect new interconnect board (12) to the
microprocessor board by carefully lining up
the pins on the plug.
g. Attach interconnect board (12) to mounting
plate (10) with screws (2) and washers (3).
h. Reconnect wires to the terminal strip as
noted in step d.
E