6. Programming Features
135
PID Feedback Loss Detection (n136, n137, n138)
PID Upper Limit
Sets the upper limit after PID control as a percentage of the maximum
output frequency.
Prohibition of PID Output
Zero limit occurs when the PID output is negative.
Constant
No.
Name
Unit
Setting Range
Factory
Setting
n136
Selection for PID
Feedback Loss De-
tection
-
0: No detection of
PID feedback loss
1: Detection of PID
feedback loss,
operation contin-
ued: FbL alarm
2: Detection of PID
feedback loss,
output turned
OFF: Fault
0
n137
PID Feedback Loss
Detection Level
1%
0 to 100
100%/Max. output
frequency
0
n138
PID Feedback Loss
Detection Time
0.1 s 0.0 to 25.5
1.0