Parameter No. Function name Data
Default da-
ta
Unit
E30
Frequency Arrival Detec-
tion Width (FAR1/FAR2/
F
AR3/FDT3/FDT4)
0.0 to 10.0 2.5 Hz
E31
Frequency Detection Lev-
el1 (FDT1/FDT3)
0.0 to 590.0 60.0 Hz
E32
Frequency Detection Hys-
teresis Width (FDT1/
FDT2)
0.0 to 590.0 1.0 Hz
E36
Frequency Detection Level
2 (FDT2/FDT4)
0.0 to 590.0 60.0 Hz
Frequency Arrival Signal (Constant Speed) (E20, E21, E27 = 1:
FAR1, 21: FAR2, 72: F
AR3)
FAR1, FAR2 and FAR3 turn ON when the output frequency falls within the set frequency ± Frequency
Arrival Detection Width (E30), and turn OFF when the output frequency falls outside the Frequency
Arrival Detection Width (E30). In addition to FAR1 signal functions, the Frequency Arrival 2 ON Timer
(E29) can be set to the F
AR2 signal.
Also, operation when the RUN command is OFF differs between FAR1, FAR2 and FAR3 as follows.
FAR1, FAR2: The signal is always OFF when the RUN command is OFF or the speed command is 0.
FAR3: The signal is turned ON when the output frequency is within 0 ± frequency arrival detection
range while the frequency reference is considered to be 0 with the RUN command being OFF.
Name
Output
signal
E20, E21, E27 al-
located data
Operation level Detection range Remarks
Frequency arrival
signal 1 (constant
speed)
FAR1 1 Set frequency
Frequency Arrival
Detection Width
(E30)
OFF when the
RUN command is
OFF
Frequency arrival
signal 2 (constant
speed)
FAR2 21 Set frequency
Frequency Arrival
Detection Width
(E30)
OFF when the
RUN command is
OFF
Frequency arrival
signal 3 (constant
speed)
FAR3 72 Set frequency
Frequency Arrival
Detection Width
(E30)
When the RUN
command is OFF
,
the set frequency
is treated and
processed as 0
Frequency arrival signal 1
(constant speed) “FAR1”
Frequency / Speed
RUN command
ON
ON
ON
ON
ON
Frequency arrival 3 “FAR3”
Detection speed
(output frequency)
Arrival range
Command
Arrival range
Speed command = 0
7 Other Functions
7-90
M1 Series Standard Type User's Manual (I669)
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