71
Setting Control Specifications
Section 5-3
■
Proportional Band
×
10 Compensation
When this parameter is set to Enabled, the proportional band is increased by
a factor of 10. Use this parameter when the proportional band setting range is
insufficient.
Note
This parameter can be set only while operation is stopped.
When this parameter has been changed, the new setting becomes effective
the next time a software reset is performed for the Unit or the next time power
is turned ON.
■
Setting the Alpha
This parameter sets the 2-PID constant alpha (
α
).
Note
Normally, this parameter is left at its default value.
5-3-3
Setting the Set Point
These parameters set the set point.
Note
(1) Refer to 5-7-1 Bank Function for details on banks.
Set the set point so that it is within the input range as well as the set point
limiter range.
If the set point is out-of-range, the internal set point actually used for con-
trol will be limited to a value within the input range and set point limiter
range.
(2) The decimal point position is the same as set for the Decimal Point Posi-
tion B parameter.
■
Set Point Limiter
These parameters apply a limit to the set point's setting range so that the con-
trol subject does not reach an abnormal temperature.
Note
(1) Set the SP Upper and Lower Limits within the input range and also set
the SP Upper Limit > SP Lower Limit.
If the SP Lower Limit > SP Upper Limit, the larger value will function as
the SP Upper Limit. In addition, if the limit range is set outside of the input
range, it will be limited to the input range.
Variable type
Parameter name
Setting range
Default
F0/B0
Proportional Band
×
10
Compensation (Common)
0: Disabled
1: Enabled
0
Conditions for use
No special conditions.
Variable type
Parameter name
Setting range
Default
D5/95
Alpha
(Channel) 0.00 to 1.00
0.65
Conditions for use
No special conditions.
Variable type
Parameter name
Setting range
Default
D0/90
Set Point
(Bank)
−
1999 to 9999 EU
(See note 2.)
0
Variable type
Parameter name
Setting range
Default
D5/95
SP Upper Limit
(Channel)
−
1999 to 9999 EU
(See note 3.)
9999
SP Lower Limit
(Channel)
−
1999 to 9999 EU
(See note 3.)
−
1999
Conditions for use
No special conditions.
Summary of Contents for EJ1G
Page 3: ...iv ...
Page 17: ...xviii ...
Page 21: ...xxii ...
Page 53: ...32 Unit Configuration Examples Section 2 4 ...
Page 69: ...48 Changing SPs During Operation Section 3 3 ...
Page 81: ...60 Other Functions Section 4 5 ...
Page 145: ...124 Other HFU Functions Section 5 7 ...
Page 167: ...146 Detailed Description of Services Section 6 4 ...
Page 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
Page 237: ......