Emerson Rosemount 3490 Series Reference Manual page 116

Getting started
January 2021
Note
For any of the alarms below to be indicated by a relay or current output, an indication
method must be selected.
Related information
Auxiliary functions for relay modes
Set-up alarms
Alarm indication selection
Relay operations alarm
Menu
Table 4-23: Relay Operations Alarm Parameters
Parameter
P491
P492
Related information
Auxiliary functions for relay modes
Monitoring the control unit readings
Set-up alarms
Relay run-time alarm
Menu
Table 4-24: Relay Run-time Alarm Parameters
Parameter
P493
P494
Note
For any of the alarms below to be indicated by a relay or current output, an indication
method must be selected.
116
SETUP → [CONTROLLER] → APPLICATION → ALARM
Description
RL operations It is an alarm condition when the number of
operations done by a selected relay (P492) is higher
than the number in P491.
Relay operation counters parameters D811 to D815
are in the MONITOR menu.
RL ops rly sel Select the relay for the monitoring operation
associated with parameter P491.
SETUP → [CONTROLLER] → APPLICATION → ALARM
Description
RL runtime It is an alarm condition when a relay, selected by
P494, has been energized for longer than the period
(hours and minutes) set by P493.
Run-time counters parameters D821 to D825 are in
the MONITOR menu.
RL run rly sel Select the relay for the monitoring operation
associated with parameter P493.
Reference Manual
00809-0100-4841
Factory default
0
Disabled
Factory default
0:00 h:m = OFF
Disabled
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