Troubleshooting - Emerson Rosemount 5900S Reference Manual

Reference Manual
00809-0100-5900
6.3

Troubleshooting

This section describes various problems that may occur due to malfunctioning devices or
incorrect installations. Note that symptoms and actions related to the Rosemount 2410
Tank Hub and Rosemount 2460 System Hub (2160 Field Communication Unit in legacy
systems) are not applicable for F
Table 6-1: Troubleshooting Chart for the Rosemount 5900S
Symptom
No communication with the
Rosemount 5900S Radar
Level Gauge
Rosemount 5900S Radar Level Gauge
OUNDATION
Possible cause
Wiring
Incorrect Tankbus
termination
Too many devices on the
Tankbus
™
Fieldbus systems.
Action
• Check that the device appears in the Device Live List, see
the Rosemount 2410 Tank Hub
more information
• Check that wires are properly connected to the
terminals
• Check for dirty or defective terminals
• Check wire insulation for possible short circuits to
ground
• Check that there are no multiple shield grounding
points
• Check that the cable shield is grounded at the power
supply end (Rosemount 2410 Tank Hub) only
• Check that the cable shield is continuous throughout
the Tankbus network
• Check that the shield inside the instrument housing
does not come into contact with the housing
• Check that there is no water in conduits
• Use shielded twisted pair wiring
• Connect wiring with drip loops
• Check the Rosemount 2410 Tank Hub wiring
• See Electrical installation
• Check that there are two terminators on the Tankbus.
Normally the built-in termination in the Rosemount
2410 Tank Hub is enabled.
• Check that terminations are placed at both ends of the
Tankbus
• Check that the total current consumption of the
devices on the Tankbus is less than 250 mA. See the
Rosemount 2410 Tank Hub
information.
• Remove one or more devices from the Tankbus. The
Rosemount 2410 Tank Hub supports a single tank. The
multiple tank version of the 2410 supports up to 10
tanks.
Service and troubleshooting
September 2019
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