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3 SPECIFICATIONS
3.5.14 Set value (SV) setting (buffer memory address: 22
3.5.15 PID constant setting
(buffer memory address: 23
3.5.16 Alert alarm 1 to 4 setting
(buffer memory address: 26
3.5.17 Upper/lower output limiter setting
(buffer memory address: 2A
3 - 37
(1) Sets the temperature for the set value of PID operation.
(2) The setting range is within the temperature setting range specified in the input
range setting (refer to Section 3.5.12).
(3) Setting a value outside the setting range will result in a write error, turn on the
write error flag (Xn2), and store the error code (4) to address 0 of the buffer
memory.
to 25
H
(1) Sets the proportional band (P), integral time (I) and derivative time (D) for
performing PID operation.
(2) As the proportional band (P), integral time (I) and derivative time (D), set values
within the following ranges.
Item
Proportional band
(P) setting
Integral time (I)
setting
Derivative time (D)
setting
(a) For two-position control, set the proportional band to "0".
(b) For PI control, set the derivative time to "0".
(3) When executing auto tuning, do not set "0" to the proportional band.
If its setting is "0", auto tuning will not be executed.
REMARK
Two-position control is a control method in which ON and OFF alternate with each
other at two manipulated values of 0% and 100% with respect to the set value to
keep the temperature constant.
to 29
H
(1) Sets the temperature at which the alert alarm 1 to 4 mode setting (buffer memory
address: C0
to C3
H
(2) The setting range is within the temperature setting range specified in the input
range setting (refer to Section 3.5.12).
(3) Setting a value outside the setting range or setting a value other than 0 to the
setting range in mode setting 0 will result in a write error, turn on the write error
flag (Xn2), and store the error code (4) to address 0 of the buffer memory.
, 2B
H
(1) Sets the upper and lower limit values for actually outputting the manipulated value
(MV) calculated by PID operation to an external device.
(2) The setting range is -50 to 1050 (-5.0% to 105.0%).
Make setting so that the (lower output limiter value) is less than the (upper output
limiter value).
, 42
H
, 43
to 45
, 63
H
H
H
H
Addresses (Hexadecimal)
CH.1
CH.2
CH.3
23
43
63
H
H
24
44
64
H
H
25
45
65
H
H
, 46
to 49
, 66
H
H
H
H
, D0
to D3
, E0
to E3
H
H
H
H
, 4A
, 4B
, 6A
, 6B
H
H
H
H
, 62
, 82
)
H
H
H
to 65
, 83
to 85
H
H
H
Setting range
CH.4
83
0 to 10000
H
H
84
1 to 3600
H
H
85
0 to 3600
H
H
to 69
, 86
to 89
H
H
H
, F0
to F3
) will turn on.
H
H
H
, 8A
, 8B
)
H
H
H
MELSEC-Q
)
Constant for
PID operation
0.0 to
1000.0%
1 to 3600 s
0 to 3600 s
)
3 - 37
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