Hitachi SJ Series User Manual page 276

Chapter 12
Schematic diagram of PID3 control
PID3 target value
PID3 feedback data
[AJ-33]
Proportional gain
[AJ-34]
Integral gain
[AJ-35]
Differential gain
Schematic diagram of PID4 control
■
PID4 target value
PID4 feedback data
[AJ-53]
Proportional gain
[AJ-54]
Integral gain
[AJ-55]
Differential gain
[FA-38]
[AJ-27]
+
[AJ-32]
comparison signal [FBV3]
[db-38]
PID3 control
P control
I control
D control
[FA-40]
[AJ-47]
+
[AJ-52]
Comparison signal [FBV4]
[db-40]
PID4 control
P control
I control
D control
12-10-21
PID3 deviation
minus
[AJ-22]
00
-
01
×(-1)
PID3 feedback
+
0 command
+
+
PID4 deviation
minus [AJ-42]
00
-
01
×(-1)
PID4 feedback
+
0 command
+
+
Inverter Functions
[db-58]
PID3 deviation
excessive [OD3]
I control integral value clear [PIDC3]
PID3 selection
[AJ-21]
[db-57]
00
01
02
PID3 output command
[db-60]
PID4 deviation
excessive [OD4]
I control integral value clear [PIDC4]
PID4 selection
[AJ-41]
[db-59]
00
01
02
PID2 output command