E6582062
6. [Advanced] How to use parameters 6-148
4
4
6
9
The trip level is the value which is set by <F646> when <F108>= "4: PTC input", and if <F108>= "5:
PT100", "7: PT1000", and "9: KTY84", it is the setting value of <F656>.
Pre-alarm level is 60% of <F646> when <F108>="4".
Pre-alarm level is <F656> - 10 deg.C when <F108>="5", "7", and "9".
■ Signal output of PTC input pre-alarm
Assign "150: PTC input pre-alarm" to the unused output terminal.
Memo
• With optional terminals [AI4] and [AI5], PTC thermal protection is possible in the same manner.
For details, refer to "I/O extension 1 installation manual" (E6582128).
Reference
• How to operate the operation panel -> Refer to [3. 1. 1].
• How to switch display mode on the operation panel -> Refer to [3. 1. 2].
• Procedure to change parameter setting -> Refer to [4. 2. 3]
• Details on operation by external signals -> Refer to [Chapter 7].
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