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3
SPECIFICATIONS
3.2 Function List
3.2.4 Warning output function
3 - 17
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
SETUP AND
PROCEDURES BEFORE
OPERATION
5
UTILITY PACKAGE (GX
CONFIGURATOR-TI)
6
PROGRAMMING
7
ONLINE MODULE
CHANGE
8
TROUBLESHOOTING
(c) Settable range and default value differ according to the thermocouple type.
Set it in unit of 0.1 .
(d) When time average or count average is specified, process-alarm processing is
executed for each preset time or count.
When other temperature conversion system (sampling processing, moving
average, or primary delay filter) is specified, process-alarm processing is
executed at every sampling time.
(e) When the value of the Conversion setting for disconnection detection
(Un\G164,Un\G165) or Disconnection state conversion setting
(Un\G164,Un\G165) is set for disconnection detection or disconnection check as
follows, a warning occur.
• The lower or equal value to the value set in the process alarm lower lower
limit is set.
• The higher or equal value to the value set in the process alarm upper upper
limit is set.
(2) Rate alarm
(a) Warning occurrence
When the measured temperature value is monitored at every rate alarm warning
detection period and the changed portion from the preceding value is larger than
or equal to the rate alarm upper limit value or smaller than or equal to the rate
alarm lower limit value, a warning occurs.
When a warning occurs, it is notified by storing "1" in the bit position
corresponding to the channel of the warning output flag (rate alarm)(Un\G48), and
turning ON the warning output signal (XD) and the [ALM] LED.
Table 3.6 Settable range and default value of process alarm
Thermocouple
type
Default value
Settable temperature range
(Accuracy guarantee range)
Process
alarm
lower
upper
limit
value
Process
alarm
lower
lower
limit
value
Process
alarm
upper
upper
limit
value
Process
alarm
upper
lower
limit
value
Thermocouple K -2000 12000 -2700 to 13700 (-2000 to 12000)
Thermocouple E -2000 9000 -2700 to 10000 (-2000 to 9000)
Thermocouple J -400 7500 -2100 to 12000 (-400 to 7500)
Thermocouple T -2000 3500 -2700 to 4000 (-2000 to 3500)
Thermocouple B 6000 17000 0 to 18200 (6000 to 17000)
Thermocouple R 0 16000 -500 to 17600 (0 to 16000)
Thermocouple S 0 16000 -500 to 17600 (0 to 16000)
Thermocouple N -2000 12500 -2700 to 13000 (-2000 to 12500)