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4-33
4-2 Function Mode
4
Functions
Constant Torque Characteristics
•Do not skip this setting when using a constant torque motor.
•Multiplied by the time limit characteristics set in b012/212 for each frequency.
Reduced Torque Characteristics 2
•Multiplied by the time limit characteristics set in b012/212 for each frequency.
Overload Limit/Overload Warning
This function helps prevent an overcurrent trip due to rapid load fluctuation in acceleration or
constant speed operation.
* To switch to the 2nd control, allocate 08 (SET) to the multi-function input terminal and then turn it on.
Electronic thermal level
X1.0
X0.667
0
5
60
Inverter output
frequency (Hz)
(Example) JX-AB007 (Rated current: 4.0 A), b012 = 4.00 (A),
Output frequency = 2.5 Hz
Trip time (s)
Motor current (A)
(Ratio to the rated current of the Inverter)
60
4
0
3.1
(77.4%)
4.0
(100%)
5.32
(133%)
Electronic thermal level
X1.0
X0.8
0
20
60
Inverter output
frequency (Hz)
(Example) JX-AB007 (Rated current: 4.0 A), b012 = 4.00 (A),
Output frequency = 40 Hz
Time before trip (s)
Motor current (A)
(Ratio to the rated current of the Inverter)
60
4
0
4.16
(104%)
5.4
(135%)
7.2
(180%)
Parameter No.
Function name
Data
Default setting
Unit
b021
Overload limit selection
00: Disabled
01: Enable in acceleration/constant
speed operation
02: Enabled in constant speed
operation
01
⎯
*
b221
2nd overload limit
selection
01
⎯
b022
Overload limit level
0.1 × Rated current to 1.5 × Rated
current
1.5 × Rated
current
A
*
b222
2nd overload limit level
1.5 × Rated
current
A
b023
Overload limit parameter
0.1 to 3000.0
(Deceleration time while this function
is in operation)
1.0
s
*
b223
2nd overload limit
parameter
1.0
s
b028
Overload limit source
selection
00: b022, b222 set values
01: Input terminal O
00
⎯
*
b228
2nd overload limit source
selection
00
⎯
C041
Overload warning level
0.0: Does not operate.
0.1 × Rated current to 2.0 × Rated
current (Outputs OL signal when the
overload warning level is reached.)
Rated current
A
*
C241
2nd overload warning level
Rated current
Related parameters
C021, C026
Summary of Contents for JX-A4004
Page 2: ......
Page 16: ...14 About This Manual ...
Page 19: ...Chapter 1 Overview 1 1 Functions 1 2 1 2 Appearance and Names of Parts 1 4 ...
Page 24: ......
Page 25: ...Chapter 2 Design 2 1 Installation 2 2 2 2 Wiring 2 7 ...
Page 79: ...Chapter 4 Functions 4 1 Monitor Mode 4 2 4 2 Function Mode 4 6 ...
Page 174: ...5 8 5 2 Troubleshooting 5 Maintenance Operations ...
Page 175: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 2 6 2 Storage 6 8 ...
Page 199: ...Appendix Appendix 1Parameter ListApp 2 Appendix 2Product Life CurveApp 18 ...
Page 217: ...INDEX ...
Page 220: ......