Справочник Пользователя для Mitsubishi Electronics Q68RD3-G
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3.4 Buffer Memory
3.4.19 CH[] Process alarm upper/lower limit values (Un\G94 to Un\G125)
3.4.19 CH[] Process alarm upper/lower limit values (Un\G94 to Un\G125)
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SPECIFICATIONS
3.4.19
CH
[
]
Process alarm upper/lower limit values (Un\G94 to
Un\G125)
(1) Process alarm upper upper limit value, upper lower limit value, lower
upper limit value, and lower lower limit value are set.
(2) A range of measured temperature values is set for each channel in units
of 0.1 .
(3) Settable range and default value differ according to the RTD type and
measurement range.
(4) To activate the setting, turning ON/OFF Operating condition setting
request (Y9) is required.
(5) For details on process alarm, refer to Section 3.2.3.
POINT
(1) If any of the following values are set, an error (error code: 6
) occurs.
Then, Error flag (XF) turns ON and the module operates with the setting
before the error occurrence.
before the error occurrence.
• A value out of the above settable range.
• A value that does not satisfy the following condition:
• A value that does not satisfy the following condition:
Process alarm lower lower limit value lower upper limit value upper
lower limit value upper upper limit value
lower limit value upper upper limit value
(2) When "Disable" is set in the Warning output enable/disable setting (Un\G46),
the settings of CH Process alarm upper/lower limit values (Un\G94 to
Un\G125) take no effect.
Un\G125) take no effect.
Table 3.14 Process alarm settable range and default value
RTD type
(Measurement
range)
Default value
Settable temperature
range (Accuracy
guarantee range)
(in units of 0.1 )
Process alarm
lower upper limit
value
(in units of 0.1 )
Process alarm
lower lower limit
value
(in units of 0.1 )
Process alarm
upper upper limit
value
(in units of 0.1 )
Process alarm
upper lower limit
value
(in units of 0.1 )
Pt100
(-200 to 850 )
-2000
8500
-2000 to 8500
Pt100
(-20 to 120 )
-200
1200
-200 to 1200
Pt100
(0 to 200 )
0
2000
0 to 2000
JPt100
(-180 to 600 )
-1800
6000
-1800 to 6000
JPt100
(-20 to 120 )
-200
1200
-200 to 1200
JPt100
(0 to 200 )
0
2000
0 to 2000
Ni100
(-60 to 180 )
-600
1800
-600 to 1800