L300P Inverter
Configur
ing Dr
iv
e
P
a
ra
met
e
rs
3–33
Overload
Restriction
If the inverter’s output current exceeds a
preset current level you specify during
acceleration or constant speed, the
overload restriction feature automati-
cally reduces the output frequency to
restrict the overload. This feature does
not generate an alarm or trip event. You
can instruct the inverter to apply
overload restriction only during
constant speed, thus allowing higher
currents for acceleration. Or, you may
use the same threshold for both acceler-
ation and constant speed.
When the inverter detects an overload, it must decelerate the motor to reduce the current until it
is less than the threshold. You can choose the rate of deceleration that the inverter uses to lower
the output current.
Motor
Current
Output
Frequency
B023
B022
t
restriction area
0
t
“B” Function
Run
Mode
Edit
Lo Hi
Defaults
Units
SRW Display
Func.
Code
Name
Description
–FE2
(EU)
–FU2
(US)
–FR
(JP)
B021
Overload restriction
operation mode
Select the operating mode
during overload conditions,
three options, option codes:
00 Disabled
01 Enabled for acceleration
and constant speed
02 Enabled for constant
speed only
✘ ✔
01
01
01
—
>b021 OLOAD
1MODE ON
B022
Overload restriction
setting
Sets the level for overload
restriction, between 50%
and 150% of the rated
current of the inverter,
setting resolution is 1% of
rated current
✘ ✔
rated
cur-
rent
times
1.20
rated
cur-
rent
times
1.10
rated
cur-
rent
times
1.20
A
>b022 OLOAD
1LEVEL 0024.8A
B023
Deceleration rate at
overload restriction
Sets the deceleration rate
when inverter detects
overload, range is 0.1 to
30.0, resolution is 0.1.
✘ ✔
1.00
15.0
1.00
sec.
>b023 OLOAD
1CONST 01.00
B024
Overload restriction
operation mode (2)
Select the operating mode
during motor overload
conditions, four options,
option codes:
00 Disabled
01 Enabled for acceleration
and constant speed
02 Enabled for constant
speed only
✘ ✔
01
01
01
—
>b024 OLOAD
2MODE ON
B025
Overload restriction
setting (2)
Sets the level for overload
restriction (2), between 50%
and 150% of the rated
current of the inverter,
setting resolution is 1% of
rated current
✘ ✔
rated current times
1.20
A
>b025 OLOAD
2LEVEL 0024.8A
Содержание L300P Series
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Страница 195: ...Inverter System Accessories In This Chapter page Introduction 2 Component Descriptions 3 Dynamic Braking 6 5 ...
Страница 225: ...Glossary and Bibliography In This Appendix page Glossary 2 Bibliography 6 A ...
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Страница 251: ...Drive Parameter Settings Tables In This Appendix page Introduction 2 Parameter Settings for Keypad Entry 2 C ...
Страница 263: ...CE EMC Installation Guidelines In This Appendix page CE EMC Installation Guidelines 2 Hitachi EMC Recommendations 4 D ...
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