LSIS LSLV-S100 - Command Loss Protective Operation

RS-485 Communication Features
233
Group
Code
Name
LCD Display
Parameter Setting
Setting range
Unit
Operation
DRV
Command source
Cmd Source*
3
Int 485
0-5
-
Frq
Frequency setting
method
Freq Ref Src
6
Int 485
0-12
-
* Displayed in DRV-06 on an LCD keypad.
7.2.4 Command Loss Protective Operation
Configure the command loss decision standards and protective operations run when a
communication problem lasts for a specified period of time.
Command Loss Protective Operation Setting Details
Code
Description
Pr.12 Lost Cmd Mode,
Pr.13 Lost Cmd Time
Select the operation to run when a communication error has occurred and
lasted exceeding the time set at Pr. 13.
Setting
Function
0
None
The speed command immediately becomes the
operation frequency without any protection
function.
1
Free-Run
The inverter blocks output. The motor performs in
free-run condition.
2
Dec
The motor decelerates and then stops at the time
set at Pr.07 (Trip Dec Time).
3
Hold Input
The inverter calculates the average input value for
10 seconds before the loss of the speed command
and uses it as the speed reference.
4
Hold Output
The inverter calculates the average output value for
10 seconds before the loss of the speed command
and uses it as the speed reference.
5
Lost Preset
The inverter operates at the frequency set at Pr. 14
(Lost Preset F).