Mitsubishi Electric FR-A720-0.4K Specifications Page 69
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Features
Standard
Specifications
Outline
Dimension
Drawings
Operation
Panel
Protective
Functions
OptionsInstructionsMotorCompatibilityWarrantyInquiry
Terminal Connection
Diagram
Terminal Specification
Explanation
Parameter
List
Explanations
of
Parameters
Peripheral
Devices
72
When setting parameters, refer to the instruction manual (applied) and understand instructions.
You can reduce the response level of speed control in the resonance
frequency band of the mechanical system to avoid mechanical
resonance.
Pr.862 Notch filter time constant
Pr.863 Notch filter depth
This function outputs a signal if the motor torque rises to or above
the Pr.864 setting.
The signal is used as operation and open signal for an
electromagnetic brake.
Frequency is limited at the set frequency + Pr.873 during vector
control.
When the electronic
thermal function is
activated, the motor
decelerates to a stop
and the base circuit is
shut off.
This function detects a regeneration status and increases the
frequency to avoid the regeneration status.
Possible to avoid regeneration by automatically increasing the
frequency and continue operation if the fan happens to rotate faster
than the set speed due to the effect of another fan in the same duct.
Notch filter
Pr.862
Notch filter time constant
Pr.863 Notch filter depth
Setting
0 1 2 3 4 5 6 7 8 9
Frequency
Invalid
1000 500 333.3 250 200 166.7 142.9 125 111.1
Setting
10 11 12 13 14 15 16 17 18 19
Frequency
100 90.9 83.3 76.9 71.4 66.7 62.5 58.8 55.6 52.6
Setting
20 21 22 23 24 25 26 27 28 29
Frequency
50 47.6 45.5 43.5 41.7 40 38.5 37 35.7 34.5
Setting
30 31 32 33 34 35 36 37 38 39
Frequency
33.3 32.3 31.3 30.3 29.4 28.6 27.8 27.0 26.3 25.6
Setting
40 41 42 43 44 45 46 47 48 49
Frequency
25.0 24.4 23.8 23.3 22.7 22.2 21.7 21.3 20.8 20.4
Setting
50 51 52 53 54 55 56 57 58 59
Frequency
20.0 19.6 19.2 18.9 18.5 18.2 17.9 17.5 17.2 16.9
Setting
60
Frequency
16.7
Setting
0 1 2 3
Depth
Deep
← →
Sharrow
Gain
-40dB -14dB -8dB -4dB
Torque detection
Pr.864 Torque detection
The signal turns on when
the output torque rises to
or above the detection
torque value set in Pr.864.
It turns off when the torque
falls below the detection
torque value.
865
Refer to the section about Pr.41.
866
Refer to the section about Pr.55.
867
Refer to the section about Pr.52.
868
Refer to the section about Pr.858.
872
Refer to the section about Pr.251.
Speed limit during speed control
Pr.873 Speed limit
874
Refer to the section about Pr.22.
Pr.
862, 863
P
r.
Sensorless
Sensorless
Sensorless
Vector
Vector
Vector
Pr.
864
P
r.
Magnetic flux
Magnetic flux
Magnetic flux
Sensorless
Sensorless
Sensorless
Vector
Vector
Vector
Output torque (%)
Time
ONTU OFF
Pr.864
Pr.
Pr.
Pr.
Pr.
Pr.
Pr.
Pr.
Pr.
Pr.
Pr.
Pr.
873
P
r.
Vector
Vector
Vector
Pr.
Pr.
Fault definition
Pr.875 Fault definition
Pr.875
Setting
Operation Description
0
(initial
value)
Normal
operation
At occurrence of any alarm, the base circuit is shut off
immediately. At this time, the alarm output also turns on.
1
Fault
definition
At occurrence of external thermal operation (OHT),
electronic thermal relay function (THM) or PTC
thermister function (PTC) alarm, the motor is
decelerated to a stop and the base circuit is shut off.
At occurrence of an alarm other than OHT, THM and
PTC, the base circuit is shut off immediately.
Same operation as when "0" is set is performed under
position control.
877 to 881
Refer to the section about Pr.828.
Regeneration avoidance function
Pr.882
Regeneration avoidance operation selection
Pr.883
Regeneration avoidance operation level
Pr.884 Regeneration avoidance at deceleration detection sensitivity
Pr.885 Regeneration avoidance compensation frequency limit value
Pr.886 Regeneration avoidance voltage gain
Pr.665 Regeneration avoidance frequency gain
Pr.
Number
Setting
Range
Description
882
0
(initial value)
Regeneration avoidance function invalid
1
Regeneration avoidance function is always valid
2
Regeneraiton avoidance funcion is valid only during a
constant speed operation
883 300 to 800V
Set the bus voltage level at which regeneration
avoidance operates. When the bus voltage level is set
to low, overvoltage error will be less apt to occur.
However, the actual deceleration time increases. The
set value must be higher than the "power supply voltage
× ".
884
0
(initial value)
Regeneration avoidance by bus voltage change ratio is
invalid
1 to 5
Set sensitivity to detect the bus voltage change ratio.
Setting 1 5
Detection sensitivity low high
885
0 to 10Hz
Set the limit value of frequency which rises at activation
of regeneration avoidance function.
9999
Frequency limit invalid
886 0 to 200%
Adjust responsiveness at activation of regeneration
avoidance. A larger setting will improve responsiveness
to the bus voltage change. However, the output
frequency could become unstable. When the load
inertia of the motor is large, decrease the Pr. 886
setting.When vibration is not suppressed by decreasing
the Pr.886 setting, set a smaller value in Pr.665.
665 0 to 200%
Pr.
875
P
r.
Output
speed
Alarm output
(ALM, ALM2)
OHT
occurrence
Minor fault
output 2
(ER)
E.OHT
display
ON
ON
When Pr.875 = "1"
Pr.
Pr.
Pr.
882 to 886, 665
P
r.
2
Pr.883
Time
Time
Bus voltage
(VDC)
Output
frequency(Hz)
During regeneration
avoidance function operation
Regeneration avoidance operation
example for deceleration
- [Highest level of inverter] 2
- 200V class 5
- 400V class 5
- Standard Specifications 6
- Common specifications 7
- Outline Dimension Drawings 8
- Inverter Type H H1 D D1 9
- (Unit: mm) 10
- FR-A720-75K, 90K 11
- FR-A740-110K, 132K 11
- DC reactor supplied 11
- Unit: mm) 11
- FR-A740-315K, 355K 13
- FR-A740-400K, 450K, 500K 14
- Heatsink protrusion procedure 16
- Panel cutting 17
- Inverter Type D1 18
- Terminal Connection Diagram 19
- Terminal 20
- Terminal Name Description 20
- Main circuit 22
- Control circuit 22
- Torque control 23
- Position control 23
- Operation Panel (FR-DU07) 24
- Operation mode switchover 25
- Monitor/frequency setting 25
- Parameter List 26
- Terminal Connection 27
- Terminal Specification 27
- Explanation 27
- , 2 1 0 67 33
- , 9999 1 9999 67 33
- *2 9999 55 36
- 73 38
- 0, 46, 112 39
- 1, 2, 18 39
- 3, 19, 47, 113 39
- 4 to 6, 24 to 27, 232 to 239 39
- 10 to 12, 802, 850 40
- 24 to 27 42
- Output frequency (Hz) 43
- Output frequency 43
- 31 to 36 44
- 37, 144, 505, 811 44
- 41 to 43, 50, 116, 865 44
- 55, 56, 866 45
- 57, 58, 162 to 165, 299, 611 46
- 61 to 64, 292, 293 47
- 65, 67 to 69 48
- Analog input selection 49
- 73, 242, 243, 252, 253, 267 49
- 74, 822, 826, 832, 836, 849 49
- Frequency 50
- Operation mode selection 51
- 100 equals the 53
- Modbus-RTU protocol 54
- 127 to 134, 575 to 577 55
- 135 to 139, 159 55
- 150 to 153, 166, 167 55
- 160, 172 to 174 56
- 178 to 189 57
- 190 to 196 57
- 245 to 247 58
- 251, 872 58
- 255 to 259 58
- ≠ "9999") 59
- 270 to 274, 4, 5 60
- Stop-on contact control 60
- 270, 275, 276, 6 60
- Brake sequence function 61
- 278 to 285, 292 61
- 285, 853 61
- 286 to 288 62
- 291, 384 to 386 62
- 338, 339, 550, 551 62
- 359, 367 to 369 63
- 419, 464 to 494 64
- 419, 428 to 430 64
- 420, 421, 424 64
- 804 to 806 66
- 807 to 809 66
- 818, 819 66
- 840 to 848 68
- 858, 868 68
- 862, 863 69
- 882 to 886, 665 69
- 888, 889 70
- 892 to 899 70
- C0(900), C1(901) 70
- 989, CL, ALLC, Er.CL, PCPY 71
- Protective Functions 72
- Major failures 73
- Option and Peripheral Devices 74
- Stand-alone Shared 75
- Stand-alone Option 76
- Less than D 76
- Braking torque 78
- Brake unit selection table 79
- Inverter 80
- Brake unit 80
- Recommended cable size 82
- Cable Clamp MS3057-12A 83
- MCCB INV 84
- × (Ig1+Ign+lgi+Ig2+Igm) 85
- ≥ Ig × 10) 85
- Safety Precautions 86
- 0.4K 0.75K 88
- 1.5K or 88
- Leakage currents 89
- Application to Motor 90
- Output torque 91
- Motor type 92
- Dedicated motor model lineup 92
- Motor specification 93
- Dimensions table (Unit: mm) 94
- (1500r/min series) 94
- Section BB 96
- Section B 97
- (1500r/min series) 99
- Item FR-A500(L) FR-A700 101
- Warranty 102
- International FA center 103
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