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Detection Of Output Frequency (su, Fu, Fu2 Signal, Pr. 41 To Pr. 43, Pr. 50) - Mitsubishi Electric FR-F720-00046 Instruction Manual

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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
Name
Number
41
Up-to-frequency sensitivity
42
Output frequency detection
Output frequency detection
43
for reverse rotation
Second output frequency
50
detection
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 179)
Set frequency
OFF
ON
SU
Forward
rotation
Output
signal
OFF
OFF
ON
FU
OFF
ON
OFF
FU2
Parameter
Output
Number
Signals
42, 43
FU
50
FU2
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.
♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection)
126
Initial
Value
10%
6Hz
9999
30Hz
(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 ±1% to ±100% on the
Adjustment
assumption that the set frequency is 100%.
range Pr.41
⋅ This parameter can be used to ensure that the set frequency has been
reached to provide the operation start signal etc. for related equipment.
REMARKS
The output frequency compared with the set frequency changes depending
Time
on the control method.
OFF
Control Method
V/F control
Simple magnetic flux
vector control
Pr.50
Pr.42
Time
Reverse
Pr.43
rotation
Pr.50
OFF
ON
ON
OFF
Pr. 190 to Pr. 196 Setting
Positive
Negative
logic
logic
4
104
5
105
Refer to page 122
Setting
Range
0 to 100%
Set the level where the SU signal turns on.
0 to 400Hz
Set the frequency where the FU signal turns on.
Set the frequency where the FU signal turns on in
0 to 400Hz
reverse rotation.
9999
Same as Pr. 42 setting
0 to 400Hz
Set the frequency where the FU2 signal turns on.
Compared Output Frequency
Output frequency
Output frequency before slip compensation
(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.
≠ "9999", the Pr. 42 setting applies to
⋅ When Pr. 43
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.
Description

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