The trip level is the value which is set by <F646> when <F108>= "4", and if <F108>= "5", "7", and
"9", it is the setting value of <F656>.
Pre-alarm level is 60% of the trip level.
■ Signal output of PTC input pre-alarm
Assign "150: PTC input pre-alarm" to the unused output terminal.
4
Memo
4
6
Reference
9
6. [Advanced] How to use parameters
PTC
• With optional terminals [AI4] and [AI5], PTC thermal protection is possible in the same manner.
For details, refer to the instruction manual for Expansion I/O option.
• 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].
RR
CC
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