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4-32
4-2 Function Mode
4
Func
tions
Electronic Thermal Function
This function electronically protects the motor from overheating.
•Causes an overload trip (E05) to protect the motor from overheating by setting according to the
motor rated current.
•Provides the most appropriate protection characteristics, taking into account the decline of a
standard motor cooling capability at a low speed.
•To set a value over the rated current of the motor, be careful of any temperature rise of the motor.
* To switch to the 2nd control, allocate 08 (SET) to the multi-function input terminal and then turn it on.
Electronic Thermal Level (Motor Protection Level)
(Example) JX-AB007
Rated current: 4.0 A
Setting range: 0.8 to 4.0A
Electronic Thermal Characteristics
•Frequency characteristics are multiplied by the b012/212 set value above.
•The lower the output frequency is, the lower the cooling capability of the standard motor's self-
cooling fan.
Reduced Torque Characteristics 1
•Multiplied by the time limit characteristics set in b012/212 for each frequency.
Parameter No.
Function name
Data
Default setting
Unit
b012
Electronic thermal level
0.2 × Rated current to 1.0 × Rated current
Rated current
A
*
b212
2nd electronic thermal
level
Rated current
A
b013
Electronic thermal
characteristics selection
00: Reduced torque characteristics 1
01: Constant torque characteristics
02: Reduced torque characteristics 2
00
⎯
*
b213
2nd electronic thermal
characteristics selection
00
⎯
Related parameters
C021, C024
Time before trip (s)
Example where electronic
thermal level is b012 = 5.0 A
Motor current (A)
(Ratio to the rated
current of the Inverter)
60
4
0
4.6
(116%)
6.0
(150%)
8.0
(200%)
Electronic thermal level
X1.0
X0.8
X0.6
0
5
20
60
Inverter output
frequency (Hz)
(Example) JX-AB007 (Rated current: 4.0 A), b012 = 4.00 (A),
Output frequency = 20 Hz
Trip time (s)
Motor current (A)
(Ratio to the rated current of the Inverter)
60
4
0
3.7
(92.8%)
4.8
(120%)
6.4
(160%)
Содержание JX-A4004
Страница 2: ......
Страница 16: ...14 About This Manual ...
Страница 19: ...Chapter 1 Overview 1 1 Functions 1 2 1 2 Appearance and Names of Parts 1 4 ...
Страница 24: ......
Страница 25: ...Chapter 2 Design 2 1 Installation 2 2 2 2 Wiring 2 7 ...
Страница 79: ...Chapter 4 Functions 4 1 Monitor Mode 4 2 4 2 Function Mode 4 6 ...
Страница 167: ...Chapter 5 Maintenance Operations 5 1 Special Display List Error Codes 5 2 5 2 Troubleshooting 5 6 ...
Страница 174: ...5 8 5 2 Troubleshooting 5 Maintenance Operations ...
Страница 175: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 2 6 2 Storage 6 8 ...
Страница 190: ...7 8 7 3 Dimensional Drawing 7 Specifications JX A2004 AB004 80 5 6 143 1 9 109 5 27 2 6 107 155 67 5 ...
Страница 191: ...7 9 7 3 Dimensional Drawing 7 Specifications JX A2007 80 67 5 5 6 143 1 9 132 5 50 2 6 130 155 ...
Страница 192: ...7 10 7 3 Dimensional Drawing 7 Specifications JX A4004 AB007 110 98 5 5 6 176 189 128 1 9 130 5 28 2 6 ...
Страница 194: ...7 12 7 3 Dimensional Drawing 7 Specifications JX A2055 A2075 A4055 A4075 180 235 165 250 164 6 1 9 167 5 90 1 6 ...
Страница 199: ...Appendix Appendix 1Parameter ListApp 2 Appendix 2Product Life CurveApp 18 ...
Страница 217: ...INDEX ...
Страница 220: ......