User Manual of EM730/EM730E Series Inverter
185
setting (F04.26=0), or set to the speed tracking start (F04.26=1). For the stop mode, see the
description of the function code F04.00.
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F04.27
Second confirmation of
terminal start command
0: Not required for
confirmation
1: to be confirmed
0
〇
F04.27=0
: not confirmed
The running terminal (RUN or F/R) is closed, F00.03 is set to 0 or 1, and the terminal is
powered on during start/stop or directly run once enabled by switching the start/stop mode.
F04.27=1
: confirmed
The running terminal is closed, F00.03 is set to 0 or 1, and the terminal is powered on
during start/stop or cannot directly run once enabled by switching the start/stop mode. It is
necessary to first disconnect the running terminal and then close it to start running.
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F04.29
Zero speed check
frequency
0.00 - 5.00
Hz
0.25
●
When the output frequency is lower than the zero speed judgment frequency, the terminal
“zero-speed running” will be valid.
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F04.30
Initial position search
after power-on or
protection
0: Invalid
1: valid
1
●
When the synchronous motor is used (e.g. F01.00=2) and subjected to VF control, the
initial angle is essential for the control performance. In particular, reversing may occur at the
moment of start. Thus, the initial position is searched by default after power-on or protection, in
order to achieve a better control performance.
7.6
VF Control Parameter Group of F05 Group
The function codes in this group are valid for V/F control and invalid for vector control.
V/F control is suitable for general-purpose loads such as fans and pumps, or when multiple
motors are driven by one inverter or the power of the inverter is quite different from that of the
