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4-29
4-2 Function Mode
4
Functions
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 and then turn it on.
Overload Limit
• The Inverter monitors the motor current during acceleration or constant speed operation. If it
reaches the overload limit level, the output frequency is lowered automatically according to the
overload limit parameter.
• This function prevents an overcurrent trip caused by inertia moment during acceleration, or caused
by rapid load fluctuations during constant speed operation.
• The overload limit level sets a current value for this function to work.
• When this function operates, the acceleration time becomes longer than the set time.
• With the overload limit parameter set too low, an overvoltage trip may occur due to regenerative
energy from the motor. This is because of automatic deceleration from this function even during
acceleration.
• Make the following adjustments if this function operates during acceleration and the frequency
doesn't reach the target level.
• Increase the acceleration time.
• Increase the torque boost.
• Increase the overload limit level.
• Use a higher rank Inverter.
Parameter No.
Function name
Data
Default setting
Unit
b021
Overload limit selection
00: Disabled
01: Enabled 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 FV
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 reaching the
overload warning level.)
Rated current
A
C241
*2nd overload warning
level
Rated current
Related functions
C021 to C022, C026
Содержание SYSDRIVE 3G3MX-A2002
Страница 1: ...Cat No I559 E1 01 USER S MANUAL SYSDRIVE MXSERIES Multi function Compact Inverter...
Страница 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 3...
Страница 24: ......
Страница 25: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Removing and Mounting Each Part 2 5 2 3 Wiring 2 10...
Страница 90: ......
Страница 91: ...Chapter 4 Functions 4 1 Monitor Mode 4 1 4 2 Function Mode 4 5...
Страница 180: ......
Страница 181: ...Chapter 5 Maintenance Operations 5 1 Special Display List 5 1 5 2 Troubleshooting 5 5...
Страница 188: ......
Страница 189: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 6 2 Storage 6 7...
Страница 205: ...7 8 7 4 Dimensional Drawing 7 Specifications 7 4 Dimensional Drawing 3G3MX A2002 AE002 120 110 67 5 6 5 103 2 6 7 80...
Страница 208: ...7 11 7 4 Dimensional Drawing 7 Specifications 3G3MX A4004 AE007 139 2 6 7 98 118 4 130 2 5 110 5...
Страница 210: ...7 13 7 4 Dimensional Drawing 7 Specifications 3G3MX A2055 A2075 A4055 A4075 205 220 6 5 6 164 180 2 6 7 155 5 5...
Страница 212: ...7 15 7 5 Options 7 Specifications 3G3AX RBU41 95 75 2 5 208 218 5 145 35 100 5...
Страница 223: ...7 26 7 5 Options 7 Specifications 3G3AX EFI25 L3 T S R L1 L2 10 2 260 MIN 205 235 308 5 331 355 160 40 60 164 182...
Страница 230: ......
Страница 231: ...Appendix Appendix 1 Parameter List App 1 Appendix 2 Product Life Curve App 17...
Страница 249: ...INDEX...
Страница 252: ......