Select the drive operation mode for a “Lost
Command” condition caused by a communication
error.
The following table lists the available operation
modes:
Speed reference becomes
the operating frequency
without a protective
operation.
The drive cuts off the
output and the motor free-
runs.
The drive performs a
deceleration stop
according to the time set at
“Trip Dec Time”.
The drive keeps operating
using the speed reference
received before the
command loss.
The drive keeps operating
using the operation
frequency before the
command loss.
The drive operates using
the frequency reference
set at Pr-14 “Lost Preset
F”.
Sets the drive time taken to decide that a
command has been lost, and apply the “Lost
Command Modes” set at [Pr-12]. The setting
range is: 0.1 – 120 [s]
Sets a protective function that allows the drive to
run at a frequency reference pre-set at [Pr-14]
when command via the communication module
is lost. The setting range is between the start
frequency and the maximum frequency [Hz].