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12
13
14
15
16
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18
19
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12. (M) Item and Output Signal for Monitoring
12.7 Output frequency detection
12.7
Output frequency detection
If the inverter output frequency which reaches a specific value is detected, the relative signal is output.
*1
Gr.1 and Gr.2 are the parameter initial value groups. (Refer to
).
Setting the notification zone of the output frequency reaching the set
point (SU signal, Pr.41)
• The Up to frequency (SU) signal is output when the output frequency reaches the set frequency.
• Set the value in the range of 1% to 100% in
Pr.41
to determine tolerance for the set frequency (considered as 100% point).
• It may be useful to use this signal to start operating related equipment after checking that the set frequency has been
reached.
• To use the SU signal, set "1" (positive logic) or "101" (negative logic) in one of
Pr.190 to Pr.196 (Output terminal function
selection)
to assign function to an output terminal.
Output frequency detection (FU (FB) signal, Pr.42, Pr.43)
• The Output frequency detection (FU) signal and the Speed detection (FB) signal are output when the output frequency
reaches or exceeds the
Pr.42
setting.
• The FU signal is useful for applying or releasing electromagnetic brake, etc.
• The FU signal is output when the output frequency (frequency command) reaches the set frequency. The FB signal is
output when the detected actual speed (estimated speed under Real sensorless vector control, or feedback value under
Vector control) of the motor reaches the set frequency. The FU signal and the FB signal are output at the same manner
under V/F control or Advanced magnetic flux vector control or during the encoder feedback control operation.
• The frequency detection dedicated to motor rotation in reverse direction is enabled by setting the frequency in
Pr.43
. This
setting is useful when the timing of the electromagnetic braking during forward rotation operation (for example, during lifting
up in the lifts operation) is different from that during reverse rotation operation (lifting down).
Pr.
Name
Initial value
Setting
range
Description
Gr.1
Gr.2
41
M441
Up-to-frequency
sensitivity
10%
0% to 100%
Set the level where the SU signal turns ON.
42
M442
Output frequency
detection
6 Hz
0 to 590 Hz
Set the frequency at which the FU (or FB) signal turns ON.
43
M443
Output frequency
detection for reverse
rotation
9999
0 to 590 Hz
Set the frequency at which the FU (or FB) signal turns ON only
while the motor rotates in reverse direction.
9999
The frequency same as the
Pr.42
setting is set.
865
M446
Low speed detection
1.5 Hz
0 to 590 Hz
Set the frequency at which the LS signal turns ON.
870
M400
Speed detection
hysteresis
0 Hz
0 to 15 Hz
Set the hysteresis width for the detected frequency.
Output frequency
(Hz)
ON
Set frequency
Adjustment
range
Pr.41
SU
Time
OFF
OFF
Содержание FR-E800
Страница 17: ...16 1 Introduction 1 3 Related manuals MEMO ...
Страница 51: ...50 2 Basic Operation 2 8 I O terminal function assignment MEMO ...
Страница 89: ...88 3 Parameters 3 4 Parameter list by function group number MEMO ...
Страница 135: ...134 5 Speed Control 5 9 Troubleshooting in the speed control MEMO ...
Страница 153: ...152 6 Torque Control 6 7 Troubleshooting in torque control MEMO ...
Страница 195: ...194 8 E Environment Setting Parameters 8 18 Current average value monitor signal MEMO ...
Страница 237: ...236 10 D Operation Command and Frequency Command 10 6 Operation by multi speed setting MEMO ...
Страница 339: ...338 13 T Multi Function Input Terminal Parameters 13 9 Start signal operation selection MEMO ...
Страница 455: ...454 16 G Control Parameters 16 13 Speed smoothing control MEMO ...
Страница 481: ...480 18 Appendix 18 4 Parameters functions and instruction codes under different control methods MEMO ...