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I/O signal control
5.11.5 Detection of output frequency (SU, FU signal, Pr. 41 to Pr. 43)
The inverter's output frequency is detected, and the signals are output through FL remote communication.
Parameter
Number
Name Initial Value Setting Range Description
41
Up-to-frequency
sensitivity
10% 0 to 100% Level where the SU signal turns ON.
42
Output frequency
detection
6Hz 0 to 400Hz Frequency where the FU signal turns ON.
43
Output frequency
detection for reverse
rotation
9999
0 to 400Hz
Frequency where the FU signal turns ON in reverse
rotation.
9999 Same as Pr. 42 setting
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 167)
(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 0% to
±100% on the assumption that the set frequency is 100%.
This parameter can be used to ensure that the running
frequency has been reached to provide the operation start
signal etc. for related equipment.
(2) Output frequency detection
(FU signal, Pr. 42, Pr. 43)
The output frequency detection signal (FU) is output when
the output frequency reaches or exceeds the Pr. 42 setting.
This function can be used for electromagnetic brake
operation, open signal, etc.
Frequency detection that is dedicated to reverse operation
use 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 ≠ "9999", the Pr. 42 setting is used for forward
rotation and the Pr. 43 setting is used for reverse rotation.
REMARKS
All signals are OFF during DC injection brake.
The output frequency to be compared with the set frequency is the output frequency before slip compensation is performed.
Output frequency
(Hz)
ON
Set frequency Adjustment
range
Pr.41
SU
Time
OFF
OFF
Output signal
Forward
rotation
Reverse
rotation
Time
Output frequency (Hz)
ON ON
OFF OFFOFF
FU
Pr.43
Pr.42