Shinko PCD-33A - Derivative Time (D); ARW (Anti-Reset Windup); Standard Action

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(3) Derivative time (D)
Derivative action is used to restore the change in the processing temperature
according to the rate of change. It reduces the amplitude of overshoot and undershoot
width.
If the derivative time is shortened, restoring value becomes small, and if the derivative
time is made longer, an excessive returning phenomenon may occur and the control
system may be oscillated.
(4) Anti-reset windup (ARW)
ARW (Anti-reset windup) prevents overshoot caused by the integral action. The smaller
the ARW value, the less the overshoot caused by the integral action in the transition
status, however it takes time until stabilization.
When setting ARW manually, set it to the closest MV (manipulated variable) when the
control is stabilized.
8.2 Standard action
Heating (reverse) action Cooling (direct) action
Proportional band
(OUT1) Green
Indication
Lit
: Acts ON (lit) or OFF (unlit).
Cycle action is performed according to deviation.
Cycle action is performed according to deviation.
Changes continuously according to deviation.
OFF
ON
OFF
ON
+
-
12V DC
+
12/0V DC
+
0V DC
+
0V DC
+
12V DC
+
0/12V DC
+
20mA DC
+
4mA DC
+
4mA DC
+
20mA DC
+
4 to 20mA DC
H
C
L
H
C
L
H
C
L
H
C
L
H
C
L
H
C
L
+
20 to 4mA DC
Cycle action is performed according to deviation.
Cycle action is performed according to deviation.
Changes continuously according to deviation.
LitUnlitUnlit
Control action
SV setting
Proportional band
Relay contact
output
Non-contact
voltage output
DC current
output
SV setting
R/
S/
A/
5
6
4
5
6
4
5
6
4
5
6
4
5
6
4
5
6
4
5
6
5
6
5
6
5
6
5
6
5
6
5
6
5
6
5
6
5
6
5
6
5
6