Omron SYSDRIVE 3G3MV SERIES User Manual page 160

Advanced Operation
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.
n137
Feedback Loss Detection Level
Setting 0 to 100 (%)
range
n138
Feedback Loss Detection Time
Setting 0.0 to 25.5 (s)
range
Set Values
• These parameters are reference values for detecting loss of feedback for PID control.
• Set n137 to the feedback level in percentage based on the feedback level at maximum frequency as
100%.
• Set n138 in 0.1-s increments for the permissible continuous period of
the same as or less than the feedback level set in n137.
n163
PID Output Gain
Setting 0.0 to 25.0
range
Set Values
• Set this parameter to a rate by which PID control value is multiplied for PID control.
• Normally, the default setting does not need to be changed.
• This parameter is used for the adjustment of the PID control value to be added with the frequency
reference.
n164
PID Feedback Input Block
Selection
Setting 0 to 5
range
Set Values
Value
0 Frequency reference control terminal for 0- to 10-V voltage input is enabled. (See note 1.)
1 Frequency reference control terminal for 4- to 20-mA current input is enabled. (See note 2.)
2 Frequency reference control terminal for 0- to 20-mA current input is enabled. (See note 2.)
3 Multi-function analog voltage (0- to 10-V) input is enabled.
Used only if two analog inputs are required in PID control.
4 Multi-function analog current (4- to 20-mA) input is enabled.
Used only if two analog inputs are required in PID control.
5 Pulse train reference control terminal is enabled. (See note 3.)
6-18
Description
Register 0189 Hex
Unit of 1%
setting
Register 018A Hex
Unit of 0.1 s
setting
Register 01A3 Hex
Unit of 0.1
setting
Register 01A4 Hex
Unit of 1
setting
Description
Chapter 6
Changes during No
operation
Default setting 0
Changes during No
operation
Default setting 1.0
he feedback signal level that is
t
Changes during No
operation
Default setting 1.0
Changes during No
operation
Default setting 0