Detection Of Output Frequency (Su, Fu, Fu2 Signal, Pr. 41 To Pr. 43, Pr. 50) - Mitsubishi Electric FR-F740-00023-EC Instruction Manual

Function assignment of external
terminal and control
3.9.6

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.
Pr. 37
page 104
Parameter
Pr. 44
page 79
Number
Pr. 49
41 Up-to-frequency sensitivity
page 60
42 Output frequency detection
Pr. 51
page 83
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 146)
Running frequency
OFF
ON
SU
Forward
rotation
Output
signal
OFF
ON
FU
OFF ON
FU2
Parameter
Number
42, 43
50
CAUTION
⋅ When terminal assignment is changed using Pr. 190 to Pr. 196 (output terminal function selection), the other functions may be
affected. Please make setting after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection)
100
Name
(1) Up-to-frequency sensitivity (SU signal, Pr. 41)
⋅ When the output frequency reaches the running 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 running frequency has been
reached to provide the operation start signal etc. for related equipment.
The output frequency compared with the set frequency changes depending
Time
on the control system.
OFF
Pr.50
Pr.42
Reverse
rotation
OFF OFF
ON
OFF ON OFF
Pr. 190 to Pr. 196 Setting
Output
Positive
Signals
logic
FU 4
FU2 5
Initial Setting
Value Range
10% 0 to 100% Set the level where the SU signal turns on.
6Hz 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
9999 Same as Pr. 42 setting
30Hz 0 to 400Hz Set the frequency where the FU2 signal turns on.
REMARKS
Control System
V/F control Output frequency
Simple magnetic flux
Output frequency before slip compensation
vector control
(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
Time
output.
Pr.43
⋅ This function can be used for electromagnetic brake
Pr.50
operation, open signal, etc.
⋅ When the detection frequency is set in Pr. 43, frequency
detection for reverse operation use only 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
Negative
rotation and the Pr. 43 setting applies to reverse rotation.
logic
⋅ When outputting a frequency detection signal besides the
104
FU signal, set the detection frequency in Pr. 50. The FU2
105
signalis 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.
Refer to page 96
Description
Compared Output Frequency
≠ "9999", the Pr. 42 setting applies to forward