Mitsubishi Electronics FX5 ユーザーズマニュアル

9 PID CONTROL FUNCTION
9.6 Details of Parameters

• Relationship between the forward/backward operation and the output (MV), measured value (PV) and target value (SV)
The relationship is as follows.

Alarm setting (for input variation and output variation)

If b1 and b2 in (s3) +1 are turned ON, the input variation and the output variation can be checked. The check is executed by
following the values of (s3) +20 to (s3) +23.
These parameters can be set in (s3)+24.
For details on operation of alarm output, refer to Page 67 Alarm output (s3)+24.
• Input variation
If the input variation alarm is used, turn ON b1 in (s3) +1, and specify the input variation alarm set value.

• Output variation
If the output variation alarm is used, turn ON b1 in (s3) +1, and specify the output variation alarm set value.
When this function is used, make sure to turn OFF b5 of (s3) +1.

Variation means (Previous value) - (Current value)

Set item

Setting description/Setting range

Operation setting

(s3)+1: b1

Input variation alarm

ON: Used
OFF: Not used

Input variation alarm set value

(s3)+20

Input variation (incremental) alarm set value

0 to 32767

(s3)+21

Input variation (decremental) alarm set value

0 to 32767

Set item

Setting description/Setting range

Operation setting

(s3)+1: b2

Output variation alarm

ON: Used
OFF: Not used

(s3)+1: b5

Output value upper/lower limit setting

Make sure to set it to OFF

Output variation alarm set value

(s3)+22

Output variation (incremental) alarm set value

0 to 32767

(s3)+23

Output variation (decremental) alarm set value

0 to 32767

Measured value (PV)

Output value (MV)

Target value (SV)

Backward

operation

Forward

operation