Fuji Electric FRENIC-MEGA, Instruction Manual

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H09
d67 Starting Mode (Auto search)
H49 (Starting Mode, Auto search delay time 1)
Starting Mode (Auto search)
H46 (Starting Mode, Auto search delay time 2)
H09 specifies the starting mode--whether to enable the auto search for idling motor speed to run the idling motor without
stopping it.
The auto search can apply to the restart of the inverter after a momentary power failure and the normal startup of the inverter
individually.
If the terminal command
STM
("Enable auto search for idling motor speed at starting") is assigned to a digital input terminal
with any of E01 to E07 (data = 26), the combination of the H09 data and the
STM
command status switches the starting
modes (whether auto search is enabled or disabled). If no
STM
is assigned, the inverter interprets
STM
as being OFF by
default.
„ H09/d67 (Starting mode, auto search) and terminal command
STM
("Enable auto search for idling motor speed at starting")
The combination of H09/d67 data and the
STM
status determines whether to perform the auto search as listed below.
Function code Drive control Factory default
H09 V/f control (F42 = 0 to 2) 0: Disable
d67 Vector control without speed sensor (F42 = 5) 2: Enable
Data for H09/d67
STM
Auto search for idling motor speed at starting
For restart after momentary
power failure (F14 = 3 to 5)
For normal startup
0: Disable OFF Disable Disable
1: Enable OFF Enable Disable
2: Enable OFF Enable Enable
―
ON Enable Enable
When
STM
is ON, auto search for idling motor speed at starting is enabled regardless of the H09/d67 setting.
Refer to E01 to E07 (data = 26).
Auto search for idling motor speed
Starting the inverter (with a run command ON,
BX
OFF, auto-reset, etc.) with
STM
being ON searches for the idling motor
speed for a maximum of 1.2 seconds to run the idling motor without stopping it. After completion of the auto search, the
inverter accelerates the motor up to the reference frequency according to the frequency command and the preset acceleration
time.
Auto search for idling motor speed to follow