Mitsubishi Electric FR-A700 Series, Техническое руководство

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71
1
S
PECIFI
C
A
T
IONS
SPECIFICATIONS
(3) Detection of output frequency (FU, FU2
*
,
FU3
*
, FB
*
, FB2
*
, FB3
*
)
(*FU3, FB, FB2, FB3 are not available for
.)
(*FU2,FU3, FB, FB2, FB3 are not available
for .)
The output frequency detection signal (FU (FB)) is
output when the output frequency reaches or
exceeds the [
Pr. 42 ] setting.
FU (FU2, FU3) signal can be used for
electromagnetic brake operation, open signal, etc.
The FU (FU2 and FU3) signal is output when the
output frequency reaches the speed command value
and output the FB (FB2, FB3) signal when the output
frequency reaches the actual motor speed (estimated
actual speed value under Real sensorless vector
control, feedback value under vector control). The FU
signal and FB signal are output simultaneously
during V/F control and Advanced magnetic flux
vector control.
When the detection frequency is set in [
Pr. 43 ],
frequency detection used exclusively for reverse
rotation can also be set. 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.
When outputting a frequency detection signal
besides the FU signal, set the detection frequency to
[
Pr. 50
] or [
Pr. 116
]. The FU2 (FB2) signal is output
when the output frequency reaches or exceeds the
[
Pr. 50 ] setting (FU3 (FB3) signal is output when
reaches or exceeds the [ Pr. 116 ] setting).
Refer to the table below to assign FU2, FU3, FB,
FB2, FB3 signal to [
Pr. 190 to Pr. 196 Output terminal
function selection ].
common
F700
E700 D700
Forward
rotation
[ Pr.116 ]
[ Pr.50 ]
[ Pr.42 ]
[ Pr.43 ]
[ Pr.50 ]
[ Pr.116 ]
OFF ON OFF ON OFF
Time
(Hz)
FU/FB
FU2/FB2
FU3/FB3
Output
signal
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
Output frequecy
Reverse
rotation
Output Signal
[Pr. 190 to Pr. 196] Setting
Positive logic Negative logic
FB 41 141
FU2 5 105
FB2 42 142
FU3 6 106
FB3 43 143