120
Function assignment of external
terminal and control
4.10.6 Detection of output frequency (SU, FU, FU2 signal, Pr. 41 to Pr. 43, Pr. 50)
The inverter output frequency is detected and output to the output signal.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
41
Up-to-frequency sensitivity
10%
0 to 100%
Set the level where the SU signal turns on.
42
Output frequency detection
6Hz
0 to 400Hz
Set the frequency where the FU signal turns on.
43
Output frequency detection
for reverse rotation
9999
0 to 400Hz
Set the frequency where the FU signal turns on in
reverse rotation.
9999
Same as
Pr. 42
setting
50
Second output frequency
detection
30Hz
0 to 400Hz
Set the frequency where the FU2 signal turns on.
The above parameters can be set when
Pr. 160 User group read selection
= "0".
(Refer to page 173)
(1) Up-to-frequency sensitivity (SU signal,
Pr. 41
)
When the output frequency reaches the set frequency, the up-to-frequency
signal (SU) is output.
The
Pr. 41
value can be adjusted within the range
r
1% to
r
100% on the
assumption that the set frequency is 100%.
This parameter can be used to ensure that the set frequency has been
reached to provide the operation start signal etc. for related equipment.
(2) Output frequency detection (FU signal, FU2
signal,
Pr. 42, Pr. 43, Pr. 50
)
When the output frequency rises to or above the
Pr. 42
setting, the output frequency detection signal (FU) is
output.
This function can be used for electromagnetic brake
operation, open signal, etc.
Frequency detection that is dedicated to reverse
operation can be set by setting detection frequency to
Pr.
43
. This function is effective for switching the timing of
electromagnetic brake operation between forward
rotation (rise) and reverse rotation (fall) during vertical lift
operation, etc.
When
Pr. 43
z
"9999", the
Pr. 42
setting applies to
forward rotation and the
Pr. 43
setting applies to reverse
rotation.
When outputting a frequency detection signal besides
the FU signal, set the detection frequency in
Pr. 50
. The
FU2 signal output when the output frequency reaches or
exceeds the
Pr. 50
setting.
For each signal, assign functions to
Pr. 190 to Pr. 196
(output terminal function selection) referring to the left
table.
CAUTION
Changing the terminal assignment using
Pr. 190 to Pr. 196 (output terminal function selection)
may affect the other functions.
Please make setting after confirming the function of each terminal.
i
Parameters referred to
i
Pr. 190 to Pr. 196 (output terminal function selection)
Refer to page 116
Output frequency
(Hz)
ON
Set frequency
Adjustment
range
Pr.41
SU
Time
OFF
OFF
REMARKS
The output frequency compared with the set frequency changes depending
on the control method.
Control Method
Compared Output Frequency
V/F control
Output frequency
Simple magnetic flux
vector control
Output frequency before slip compensation
Output
signal
Forward
rotation
Reverse
rotation
Time
Output frequency
(Hz)
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
FU2
Pr.50
Pr.43
Pr.50
Pr.42
FU
Parameter
Number
Output
Signals
Pr. 190 to Pr. 196
Setting
Positive
logic
Negative
logic
42, 43
FU
4
104
50
FU2
5
105
Summary of Contents for F700
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