Emerson MICRO MOTION 2700 Manual de instalación Pagina 74

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64 Transmitter Configuration and Use: Series 1000 and 2000 Transmitters
Required Transmitter Configuration continued
6.6.6 Configuring the fault indicator
If the transmitter encounters an internal fault condition, it will indicate the fault by
sending a preprogrammed output level to the receiving device. You can specify the
output level by configuring the fault indicator. See Table 6-13.
Note: By default, the transmitter immediately reports a fault when a fault is
encountered. You can delay reporting faults by changing the fault timeout. See
Section 8.12.
6.7 Configuring the discrete output(s)
Different transmitters have different discrete output (DO) options. See Section 6.3,
page 47, for information on configuring your transmitter’s outputs.
Note: Configure the transmitter for the required input/output types before
configuring individual outputs. See Section 6.3.
The discrete outputs generate two voltage levels to represent ON or OFF states. The voltage levels
depend on the output’s polarity, as shown in Table 6-14
. Figure 6-12 shows a diagram of a typical
discrete output circuit.
Table 6-13 Frequency output fault indicators and values
Fault indicator Fault output value
Upscale The user-specified upscale value between 10 Hz and 15,000 Hz (15,000 Hz default)
Downscale 0 Hz
Internal zero 0 Hz
None Tracks the data for the assigned process variable; no fault action
CAUTION
Setting the fault indicator to NONE may result in
process error due to undetected fault conditions.
To avoid undetected fault conditions when the fault
indicator is set to NONE, use some other mechanism
such as digital communication to monitor device status.
Model 1500 AN
Model 1700 AN
Model 1700 IS
Model 2500 CIO
Model 2700 AN
Model 2700 IS
Model 2700 CIO
Model 2500 CIO
Model 2700 AN
Model 2700 IS
Model 2700 CIO
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