6-20
·Set the value in percentage based on the maximum frequency as 100%.
·The integral upper limit isset sothat theoutput frequencywill notbe excessivelyhigh
when the deviation is large.
n135 PID Primary Delay Time Register 0187
Hex
Changes during
operation
Yes
Setting
range
0.0 to 10.0 (s) Unit of
setting
0.1 s Default setting 0.0
Set Values
·Setthisparametertotheprimarydelaytimeconstant forthefrequencyreference after
PID control.
·Normally, the default setting does not need to be changed.
·If load is a mechanical one with high viscous friction or low rigidity, the load may reso-
nate.Ifthathappens,setavaluelargerthan theresonantfrequencyofthe loadsothat
the load will not resonate, even though the response will be slower.
n136 Feedback Loss Detection
Selection
Register 0188
Hex
Changes during
operation
No
Setting
range
0 to 2 Unit of
setting
1 Default setting 0
Set Values
Value Description
0 Feedback loss detection disabled
1 Feedback loss detection enabled (Nonfatal error: FbL warning)
2 Feedback loss detection enabled (Fatal error: FbL error)
Note 1. Set the method of detecting loss of the feedback as a detected value for PID
control.
Note 2. Ifthedetectionlevelsetin n137orlowerisdetectedforthesettimeinn138,the
result will be determined as feedback loss.
n137 Feedback Loss Detection
Level
Register 0189
Hex
Changes during
operation
No
Setting
range
0 to 100 (%) Unit of
setting
1% Default setting 0
n138 Feedback Loss Detection
Time
Register 018A
Hex
Changes during
operation
No
Setting
range
0.0 to 25.5 (s) Unit of
setting
0.1 s Default setting 1.0
Set Values
·These parameters are reference valuesfordetectingloss of feedback forPID control.
Advanced Operation Chapter 6
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