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Output Terminal Functions (pr. 41 To Pr. 50); Up-to-speed Sensitivity (pr. 41); Speed Detection (pr. 42, Pr. 43, Pr. 50, Pr. 116) - Mitsubishi Electric FR-V560 Instruction Manual

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Output terminal functions (Pr. 41 to Pr. 50)

4.6 Output terminal functions (Pr. 41 to Pr. 50)
4.6.1
Up-to-speed sensitivity (Pr. 41
You can adjust the ON range of the up-to-speed signal (SU)
output when the output speed reaches the running speed.
This parameter can be used to confirm that the running speed
has been reached and used as the operation start signal etc. for
related equipment.
• Under vector control with encoder: Actual motor speed
(feedback value) is adjusted.
• Under vector control without encoder: Speed estimated valued
is adjusted.
Parameter
Name
41
Up-to-speed sensitivity
REMARKS
• Assign functions to the terminals DO1 to DO3 and ABC to use the SU signal. The SU signal is assigned to the terminal DO2
when shipped from the factory. Use any of Pr. 190 to Pr. 192 and Pr. 195 to change the terminal functions. Changing the
terminal assignment with any of Pr. 190 to Pr. 192 and Pr. 195 may affect the other functions. Check the functions of the
corresponding terminals before making setting. (Refer to page 165.)
• For V/F control, the motor runs at the speed converted from the output frequency.
Related parameters
• SU signal terminal assignment ⇒ Set "1" in any of Pr. 190 to Pr. 192 and Pr. 195 (output terminal function selection) (Refer to page 165.)
4.6.2
Speed detection (Pr. 42, Pr. 43, Pr. 50, Pr. 116
When the speed reaches or exceeds the setting, the output speed detection signal (FU, FU2, FU3 signal) or
speed detection signal (FB, FB2, FB3 signal) is output.
• This function can be used for electromagnetic brake operation, open signal, etc.
• You can also set speed detection used exclusively for reverse rotation.
• This function is effective for changing the timing of electromagnetic brake operation between forward
rotation (rise) and reverse rotation (fall) during vertical lift operation, etc.
The FU signal is output when the speed has reached the output speed.
The FB signal is output when the speed has reached the detected actual motor speed (feedback value).
(the estimated speed of the actual motor speed for vector control without encoder)
Parameter
Name
42
Speed detection
Speed detection for
43
reverse rotation
50
Second speed detection
116
Third speed detection
(1) Signal operation
The FU, FU2 and FU3 signals function under speed/V/F control. They do not function under torque/position
control.
Compared signals
FU/FB signal
FU2/FB2 signal
FU3/FB3 signal
REMARKS
For V/F control, on/off control is exercised at the speed converted from the output frequency. (The detection actions of the FU
and FB signals are the same.)
with
Encoder
Speed
Factory Setting
10%
Factory Setting
300r/min
9999
0 to 3600r/min, 9999
750r/min
1800r/min
FU
Speed command value
Forward rotation: On when speed is equal to or higher than in Pr. 42
Reverse rotation: On when speed is equal to or higher than in Pr. 43
On when speed is equal to or higher than in Pr. 50 (both forward and reverse)
Off when speed is lower than in Pr. 50 (both forward and reverse)
On when speed is equal to or higher than in Pr. 116 (both forward and reverse)
Off when speed is lower than in Pr. 116 (both forward and reverse)
108
without
Encoder
)
Output
speed
(r/min)
Output signal
(SU)
Start signal
Setting Range
0 to 100%
Extended parameter
with
without
Encoder
Encoder
Speed
Setting Range
0 to 3600r/min
9999: Same as Pr. 42 setting
0 to 3600r/min
0 to 3600r/min
Actual motor speed
Running speed
Adjustable range
Pr.41
Time
OFF
ON
OFF
ON
OFF
Remarks
with
without
Condi-
tional PLC
Encoder
Encoder
Torque
Position
Remarks
————
Extended
parameters
————
————
FB
SSC
)

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