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Emerson Fisher FLOBOSS 407

Emerson Fisher FLOBOSS 407
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FloBoss 407 Instruction Manual
Rev 5/00 3-29
3.5 TROUBLESHOOTING AND REPAIR
The troubleshooting and repair help the technician identify and replace faulty modules. Faulty modules
must be returned to your Fisher Representative for repair or replacement.
If an I/O point does not function correctly, first determine if the problem is with the field device or the
I/O module as follows:
CAUTION
Failure to exercise proper electrostatic discharge precautions (such as wearing a
grounded wrist strap) may reset the processor or damage electronic components,
resulting in interrupted operations.
1.
Isolate the field device from the ROC/FloBoss by disconnecting it at the I/O module
terminal block.
2.
Connect the ROC/FloBoss to a computer running the ROCLINK configuration software.
3.
Perform the appropriate test procedure described in the following paragraphs.
A module suspected of being faulty should be checked for a short circuit between its input or output
terminals and the ground screw on the termination card. If a terminal not directly connected to ground
reads zero (0) when measured with an ohmmeter, the module is defective and must be replaced.
3.5.1 Analog Input Modules
Equipment Required: Multimeter
To determine if an Analog Input module is operating properly, its configuration must first be known.
Table 3-2 shows typical configuration values for an analog input:

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