Section 3 Basic Operations
3-12
Basic
Operations
■ Manual Setup
The manual settings for PID constants are performed separately in the
“proportional band” (P), “integral time” (I), and “derivative time”
(D) parameters in the initial setting level (2). When PID constants are
set manually, the tuning setting enabled in the initial setting level (1) is
automatically changed to AT (auto-tuning), and ST (self-tuning) is
disabled.
Operating Procedure
In this example, the “proportional band” parameter is set to 10, the
“integral time” parameter to 250, and the “derivative time” parameter to
45.
1. Select the initial setting level (2).
2. Press the M Key to select the “proportional band” (SP mode)
parameter.
3. Use the U and D Keys to set 10.
4. Press the M Key to select the “integral time” (ALM mode)
parameter.
5. Press the U or D Key to set 250.
6. Press the M Key to select the “derivative time” (IS mode)
parameter.
7. Press the U or D Key to set 45.
Proportional Action When PID constants I (integral time) and D (derivative time) are set
to 0, control is executed according to proportional action. As the
default, the center value of the proportional band becomes the set
point.
M
M
M
Initial settin
level
2
SP mode
Proportional
band
ALM mode
Integral time
IS mode
・
Derivative
time
8
1 2 ALM ALM SP
OUT
3 3 2
1 2 ALM ALM SP
OUT
0 4
1 2 ALM ALM SP
OUT
-
2
-
1 2 ALM ALM SP
OUT
0
1 2 ALM ALM SP
OUT
1
0 5 2
1 2 ALM ALM SP
OUT
U/D
U/D
5 4
1 2 ALM ALM SP
OUT
U/D
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