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4-37
4-2 Function Mode
4
Functions
If the internal DC voltage has dropped below the undervoltage level during this function, output is
shut off after an undervoltage trip to enter free-run status.
(Caution)
•When the momentary power interruption non-stop deceleration level (b052) is below the
momentary power interruption non-stop function starting voltage (b051), the Inverter performs this
function by increasing b052 to b051 without an automatic setting change.
•This function is not reset before completion. To run the Inverter after power recovery during this
function, input the RUN command after entering the STOP command when stopped.
Overvoltage Control Function During Deceleration
This function helps avoid an overvoltage trip during deceleration. Note that the actual deceleration
time may be longer than the set value. This function automatically keeps DC voltage at the set level
during deceleration. The aim of this function is the same as the overvoltage LAD stop function, de-
scribed in b130 and b131. However, these functions have different deceleration characteristics and
you can select either function according to your system
.
With this function activated, PI control works to keep the internal DC voltage constant.
•Though quicker response is expected with a larger proportional gain, control tends to be divergent
and may easily lead to a trip.
•Response also becomes quicker with a shorter integral time, but if too short, it may lead to a trip as
well.
Parameter No.
Function name
Data
Default setting
Unit
b055
Overvoltage protection
proportional gain during
deceleration
0.2 to 5.0
0.2
⎯
b056
Overvoltage protection integral
time during deceleration
0.0 to 150.0
0.2
s
b133
Overvoltage protection function
selection during deceleration
00: Disabled
01: Enabled
00
⎯
b134
Overvoltage protection level
setting during deceleration
200-V class: 330 to 395
400-V class: 660 to 790
380/
760
V
t
t
Internal DC
voltage
Output
frequency
Set level (B134)
Normal
Overvoltage protection during deceleration
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: ......