Omron SYSDRIVE 3G3MX-A2002, User Manual

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4-19
4-2 Function Mode
4
Functions
• To use this function, set A071 to 01.
• To switch between enable/disable through external signals, allocate 23 (PID enabled/disabled) to
the desired multi-function input. Select OFF for "enabled" and ON for "disabled".
„
Feedback Selection
• Select a terminal for feedback signals in A076.
• The target value depends on the frequency reference selection A001 of the data not selected in
A076.
The setting of FV/FI selection A005 is disabled when the control terminal block (terminal) 01 is set
in A001.
„
Basic Structure of PID Control (Example)
„
PID Operation
P Operation
• Operation where the control volume is proportional to the target value
I Operation
• Operation where the control volume increases linearly according to time
C044
PID deviation
excessive level
0. to 100. 3.0 %
C052 PID FB upper limit
0.0 to 100.0
100 %
C053 PID FB lower limit 0.0 %
Related functions d004, A001, A005, C001 to C006, C021 to C022, C026
Parameter No. Function name Data Default setting Unit
fs
M
=
+
-
Deviation
ε
ε
:
Deviation
s T
s
T
K
d
i
p
1
1
Target value
0 to 10 V
4 to 20 mA
+
·
·
+
Control
volume
Feedback 0 to 10 V
4 to 20 mA
Normal control
of the Inverter
Transducer
Sensor
Kp
:
Proportional gain Ti
:
Integral time Td
:
Derivative time s
:
Operator
Small
Target
value
Control
volume
Step transition
Large
A072
Ramp transition
Small
Large
A072
Large
Small
Target
value
Control
volume
A073
Large
Small
A073