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73VR31BLD USERS MANUAL EM-7397-C Rev.4
2.8.2 DISCRETE ALARM
Figure 2.8.2: Alarm setting for discrete signal (Individual).
Output at OFF / ON Enable, Delay
Alarm contact outputs can be provided to the alarm output terminal. Choose Enable to activate an relay output for
respective signal status (input ON and OFF).
In order to eliminate noise interference, you can specify the time (seconds) to wait to apply change in signal status.
Delay
Selectable from 1 to 99 seconds
Caution !
Alarm is Not triggered if ‘true’ contact status lasts shorter than the delay time.
[Example] ON Alarm
- ON status for T1 time duration does not trigger alarm because the duration is shorter than the
delay time.
- ‘True’ contact status starts at (a) point but an alarm is triggered only at (b) point, after the delay
time T has been elapsed.
- ‘False’ contact status starts at (c) point but the alarm is reset only at (c) point, after the delay time
T has been elapsed.
Output Channel Number
Specify the channel No. of the R3-DC16.
Channel No.
Selectable from 1 to 256
Color
You can apply specific colors to represent each status for use in the Display views. Use the color palette.
OFF Message, ON Message
These messages are used for Overview and Alarm History. Choose Enable to activate a message output for respec-
tive signal status (input ON and OFF). Message contents up to 10 characters respectively for OFF and ON.
Normal state
Specify which trigger input contact status should be identified as normal.
T1
T
T
Alarm Trip
Alarm Reset
a
b
c
d
Discrete input
ON
OFF
