Omron SYSDRIVE 3G3MV User Manual page 162

Advanced Operation
·Set the value in percentage based on the maximum frequency as 100%.
·The integral upper limit is set so that the output frequency will not be excessively high
when the deviation is large.
PID Primary Delay Time
n135
Setting 0.0 to 10.0 (s)
range
Set Values
·Set this parameter to the primary delay time constant for the frequency reference 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. If that happens, set a value larger than the resonant frequency of the load so that
the load will not resonate, even though the response will be slower.
n136 Feedback Loss Detection
Selection
Setting 0 to 2
range
Set Values
Value
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. If the detection level set in n137 or lower is detected for the set time in n138, the
result will be determined as feedback loss.
Feedback Loss Detection
n137
Level
Setting 0 to 100 (%)
range
Feedback Loss Detection
n138
Time
Setting 0.0 to 25.5 (s)
range
Set Values
·These parameters are reference values for detecting loss of feedback for PID control.
6-20
Register 0187
Hex
Unit of 0.1 s
setting
Register 0188
Hex
Unit of 1
setting
Description
Register 0189
Hex
Unit of 1%
setting
Register 018A
Hex
Unit of 0.1 s
setting
Chapter 6
Changes during Yes
operation
Default setting 0.0
Changes during No
operation
Default setting 0
Changes during No
operation
Default setting 0
Changes during No
operation
Default setting 1.0