Mitsubishi Electric MELSEC iQ-R Series User Manual page 147

CH1 Process alarm lower lower limit value
Set a lower lower limit value of the alert output function (Process alarm).
For details on the alert output function, refer to the following.
Page 27 Alert Output Function
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
CH Process alarm lower lower limit value
CH Process alarm lower lower limit value (in
Q compatible mode)
■Setting range
• Thermocouple input module
Input range
K thermocouple
E thermocouple
J thermocouple
T thermocouple
B thermocouple
R thermocouple
S thermocouple
N thermocouple
• RTD input module
Input range
Pt100 (-200 to 850)
Pt100 (-20 to 120)
Pt100 (0 to 200)
JPt100 (-180 to 600)
JPt100 (-20 to 120)
JPt100 (0 to 200)
Ni100 (-60 to 250)
Pt50 (-200 to 650)
■Enabling the setting
Turn on and off 'Operating condition setting request' (Y9) to enable the setting.
■Default value
The default value is -2000 (-200.0) for all the channels.
• When using the process alarm, configure the 4-step settings for the process alarm upper upper limit value,
upper lower limit value, lower upper limit value, and lower lower value.
• A channel where the set values do not satisfy the condition "Upper upper limit value  Upper lower limit
value  Lower upper limit value  Lower lower limit value" causes a process alarm upper lower limit value
setting range error (error code: 1BH).
• Even when the scaling function is used, the measured temperature value is subject to an alert.
CH1 CH2 CH3
520 720 920
94 98 102
Setting range
-2700 to 13700 (-270.0 to 1370.0)
-2700 to 10000 (-270.0 to 1000.0)
-2100 to 12000 (-210.0 to 1200.0)
-2700 to 4000 (-270.0 to 400.0)
0 to 18200 (0.0 to 1820.0)
-500 to 17600 (-50.0 to 1760.0)
-500 to 17600 (-50.0 to 1760.0)
-2700 to 13000 (-270.0 to 1300.0)
Setting range
-2000 to 8500 (-200.0 to 850.0)
-200 to 1200 (-20.0 to 120.0)
0 to 2000 (0.0 to 200.0)
-1800 to 6000 (-180.0 to 600.0)
-200 to 1200 (-20.0 to 120.0)
0 to 2000 (0.0 to 200.0)
-600 to 2500 (-60.0 to 250.0)
-2000 to 6500 (-200.0 to 650.0)
CH4 CH5 CH6
1120 1320 1520
106 110 114
Accuracy guaranteed range
-2000 to 12000 (-200.0 to 1200.0)
-2000 to 9000 (-200.0 to 900.0)
-400 to 7500 (-40.0 to 750.0)
-2000 to 3500 (-200.0 to 350.0)
6000 to 17000 (600.0 to 1700.0)
0 to 16000 (0.0 to 1600.0)
0 to 16000 (0.0 to 1600.0)
-2000 to 12500 (-200.0 to 1250.0)
Appendix 3 Buffer Memory Areas
CH7 CH8
1720 1920
118 122
A
APPX
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