Ch Warning Output Upper/Lower Limit Values (Un\86 To 101) - Mitsubishi Electric Q64RD User Manual

3 SPECIFICATIONS
3.4.19 CH warning output upper/lower limit values (Un\G86 to 101)
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(1) Set the range (0.1
(2) The warning output range region can be set in four levels of the warning output
upper upper value, upper lower value, lower upper value and lower lower value.
(3) When the detected measured temperature value is higher than or equal to the
warning output upper upper limit value, or lower than or equal to the warning
output lower lower limit value (when the value enters the warning output range), a
warning occurs.
When a warning occurs, "1" is stored to the bit of the corresponding channel in the
warning output flag (buffer memory address 48: Un\G48), and the warning output
signal (XD) turns ON.
(4) After a warning occurrence, when the temperature value falls lower than the
warning output upper lower limit value or rises higher than the warning output
lower upper limit value and returns to within the setting range, the warning is
cleared.
When the warning is cleared, "0" is stored in the bit position corresponding to the
channel of the warning output flag (buffer memory address 48: Un\G48).
The warning output signal (XD) turns OFF only when all channels return to within
the setting range.
Warning
occurrence
Upper upper
limit value
Upper lower
limit value
Lower upper
limit value
Lower lower
limit value
(5) At power-on or reset, the minimum and maximum values of the measured
temperature range of the setting range set as the measurement range (set using
GX Developer) are stored.
The upper upper limit value is set to be equal to the upper lower limit value, and
the lower upper limit value equal to the lower lower limit value.
Setting
Setting mode Setting range
Pt 100
(New JIS)
JPt.100
(Old JIS)
Ni100
Setting range 0 to 3 can be used for the Q64RD/Q64RD-G. Setting range 4, 5 and 8 is allowed for the Q64RD-G
only.
increments) on each channel.
Warning clear
Warning occurrence
Settings at Power-On or Reset
Lower lower Lower Upper
limit value limit value
0 -200000
1 -20000
4 0
2 -180000
3 -20000
5 0
8 -60000
Warning output range section
Out of warning output range section
Included
Warning clear
Time
Upper upper Upper lower
limit value limit value
850000
120000
200000
600000
120000
200000
180000
MELSEC-Q
Allowable
Temperature Range
-200000 to 850000
-20000 to 120000
0 to 200000
-180000 to 600000
-20000 to 120000
0 to 200000
-60000 to 180000
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