1-3
Rosemount TankRadar Rex
Chapter 1 Checks and Adjustments
Commissioning Manual
308011En, Ed.2/Rev.B
June 2008
1.5.3
Electrical check
•
Power supply. Check that the switch inside the FCU box is set to
the correct value. 230 V is the default value. If 115 V is used, the
box on the nameplate "
Mark box if re-wired for 115 VAC
" shall be
marked.
•
Grounding:
if there is no protective ground in the mains supply
cable, the FCU should be externally grounded via the ground con-
nection at the outside of the FCU box.
1.5.4
Field bus check
•
Use a shielded twisted pair cable with an area of at least 0.50 mm
2
for the TRL/2 bus.
•
Shielded cables are required in order to avoid crosstalk if the
cables run alongside and also to avoid other disturbances. The
field bus shield should be connected to ground at the FCU only.
Contact Emerson Process Management/Rosemount Tank
Gauging for further instructions.
•
Note the distance if there are two fieldbuses running in parallel.
1.5.5
Group bus check
•
Note the number of group buses that are used. The FCU can be
configured with two, three or four group bus ports.
•
Note whether the group bus communicates via the RS-232C or
the TRL/2 bus interface. By replacing the FCM board with an FCI
board, RS-485 communication can also be used.
1.5.6
Software
•
Note if redundant FCUs are used.
•
Note the FCU program version.
To view the FCU program version:
1
Select the FCU icon in the TankMaster WinSetup workspace.
2
Click the right mouse button and choose the
Properties
option.
3
Select the
Communication
tab.
