Mitsubishi QCPU Programming Manual page 59

5. PID CONTROL PROCEDURE
With PID limits
Setting User Specification
Range
-50 to 2050 -50 to 2050
-50 to 2050 -50 to 2050
0 to 2000
0 to 2000
Complete derivative
Setting Range
Range
-32768 to 32767
-32768 to 32767
0 to 2000 -32768 to 32767
0 to 2000 -32768 to 32767
Without PID limits
User Specification
Range
-32768 to 32767
-32768 to 32767
-32768 to 32767
-32768 to 32767
5 - 11
MELSEC-Q/QnA
Processing when Set Data is
Outside the Allowable Setting Range
For the High Performance model
QCPU "with PID limits" or the
QnACPU, PID operation is
performed after conversion into the
following value.
When the MVLL or MVHL value is
less than -50, it is converted into -
50.
When the MVLL or MVHL value is
greater than 2050, it is converted
into 2050.
In the case of "with PID limits", PID
operation is performed after
conversion into the following value.
When the MVL value is less
than 0, it is converted into 0.
When the MVL value is greater
than 2000, it is converted into
2000.
In the case of "with PID limits", PID
operation is performed after
conversion into the following value.
When the PVL value is less
than 0, it is converted into 0.
When the PVL value is greater
than 2000, it is converted into
2000.
An error occurs and PID operation
for the corresponding loop is not
executed.