PROFInet Module
SINUS H
17
/
34
5.4
PRT Group
5.4.1
[PRT-12] Lost Cmd Mode: Lost Command Mode Options
Select the inverter’s operation mode for a “Lost Command” condition caused by a communication error.
The following table lists available operation modes.
Settings
Description
0
None
Speed reference becomes the operating frequency, without a
protective operation.
1
Free-Run
The inverter cuts off the output and the motor free-runs.
2
Dec
The inverter performs a deceleration stop according to the time set at
“Trip Dec Time.”
3
Hold Input
The inverter keeps operating using the speed reference received
before the command loss.
4
Hold Output
The inverter keeps operating using the operation frequency it was
operating at before the command loss.
5
Lost Preset
The inverter operates using the frequency reference set at Pr-14
“Lost Preset F.”
5.4.2
[PRT-13] Lost Cmd Time: Lost Command Decision Time
Sets the time taken for the inverter to decide that a command has been lost, and apply the “Lost
Command Modes” set at [PRT-12]. The setting range is from 0.1–120 seconds.
5.4.3
[PRT-14] Lost Preset F: Frequency Reference for Lost Command
Sets a protective function that allows the inverter to run at a frequency reference that is pre-set at
[PRT-14], when command via the communication module is lost. The setting range is between the
start frequency and the maximum frequency [Hz].
