ABB Navigator 550 Spares Replacement Procedures page 4

3.5 Replacing the Modbus cable assembly
Modbus cable part numbers:

AW503 090 / 1.5 m (4.9 ft.)

AW503 091 / 5 m (16.4 ft.)

AW503 092 / 10 m (32.8 ft.)

AW503 093 / 20 m (65.6 ft.)
Referring to Section 3.2, page 2:
1. Remove the wet-section PCB cover.
Referring to Fig. 3.7:
A
2. Loosen cable gland
and disconnect the Modbus cable
C
connections marked black, red, screen, green and white.
3. Withdraw the Modbus cable
main case assembly and discard.
4. Feed the replacement Modbus cable into the main case via
E
the guide channel
remake connections to the black, red, screen, green and
white PCB wet-section terminals and at the transmitter.
5. Refit the PCB cover by reversing the removal procedure.
Fig. 3.7 Replacing the Modbus cable assembly
at the wet-section PCB housing
D
from the terminal block
D
from the PCB housing and
at the top, feed through the gland and
B R
SCR
G W
B
For more information please contact:
ABB Limited
Process Automation
Oldends Lane
Stonehouse
Gloucestershire GL10 3TA
UK
Tel:+44 1453 826 661
Fax:+44 1453 829 671
ABB Inc.
Process Automation
125 E. County Line Road
Warminster
PA 18974
USA
Tel:+1 215 674 6000
Fax:+1 215 674 7183
www.abb.com
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