16 - 13
IP
N 07
4-
50
5-
P1
E
IC6 Operating Manual
Figure 16-7 Response of process to an open loop step change
(At t=0 control signal is increased)
A controller model used extensively is the PID type, shown in Laplace form in
.
[9]
Where
M(s) = manipulated variable or power
K
c
= controller gain (the proportional term)
T
i
= integral time
T
d
= derivative time
E(s) = process error
represents the controller algorithm and a process with first order lag
plus a dead time. The process block implicitly includes the dynamics of the
measuring devices and the final control elements, in our case the evaporator power
supply. R(s) represents the rate setpoint. The feedback mechanism is the error
generated by the difference between the measured deposition rate, C(s), and the
rate set point, R(s).
M s
K
c
1
1
T
i
s
------- T
d
s
+
+
Es
=
Summary of Contents for IC6
Page 1: ...O P E R A T I N G M A N U A L IC6 Thin Film Deposition Controller IPN 074 505 P1E Cover Page ...
Page 2: ......
Page 8: ......
Page 20: ...TOC 12 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 42: ...1 22 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 134: ...6 6 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 148: ...8 4 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 170: ...9 22 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 268: ...13 2 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 312: ...15 40 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 338: ...A 10 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...
Page 342: ...1 4 IPN 074 505 P1E IC6 Operating Manual This page is intentionally blank ...