AKM Confidential
AK2571
4.2 PID control
Figure 4-2 explains the block diagram for PID control and table 4-3 indicates the parameter setting range
Figure 4-2 PID control
Temperature data
(R_TMPRT_CRNT)
Target temperature
(R_TMPRT_TRGT)
-
Z
-1
Differencial
Parameter
(D)
+
Proportion
Parameter
(P)
Integration
Parameter
(I)
Σ
+
PID control value
(R_PID_VALABS)
E_PID_D
E_PID_I
E_PID_P
PID integration
value
(R_PID_INTGRL)
Table 4-3: PID parameter setting range
Parameter EEPROM Min.
Default Max.
Proportion E_PID_P 0
8
255
Integration E_PID_I 0
7/256 255/256
Differential E_PID_D 0
6/256
255/256
<Rev. 0.6E Preliminary> -16-
2001/11
