![background image](http://html1.mh-extra.com/html/omron/q2v-series/q2v-series_technical-manual_743226671.webp)
SIEPCYEUOQ2V01A Q2V Technical Manual
671
The drive automatically adjusts the drive rated current to the best value as specified by the set temperature. Set the
ambient temperature of the area where you install the drive to a value that is more than the drive rating.
Refer to
Derating Depending on Ambient Temperature on page 303
for information about derating as specified by
ambient temperature.
■
L8-15: oL2@LoSpeed Selection
No.
(Hex.)
Name
Description
Default
(Range)
L8-15
(04BB)
oL2@LoSpeed Selection
Sets the function to decrease drive overload at low speeds to prevent damage to the main circuit
transistor during low speed operation (at 6 Hz or slower) to prevent
oL2 [Drive Overloaded]
.
1
(0, 1)
Note:
Contact the manufacturer or your nearest sales representative before disabling this function at low speeds. If you frequently operate
drives with high output current in low speed ranges, it can cause heat stress and decrease the life span of drive IGBTs.
0 : Disabled
The drive does not decrease the overload protection level.
1 : Enabled
When the drive detects
oL2
during low speed operation, it automatically decreases the overload detection level.
At zero speed, the drive derates the overload by 50%.
■
L8-18: Soft CurrLim Selection
No.
(Hex.)
Name
Description
Default
(Range)
L8-18
(04BE)
Soft CurrLim Selection
Set the software current limit selection function to prevent damage to the main circuit transistor
caused by too much current.
1
(0, 1)
0 : Disabled
When the output current is at the software current limit value, the drive does not restrict the output voltage.
Note:
The drive may detect an
oC [Overcurrent]
when loads are particularly heavy or the acceleration time is particularly short.
1 : Enabled
When the output current is at the software current limit value, the drive decreases output voltage to decrease
output current.
When the output current decreases to the software current limit level, the drive starts usual operation.
■
L8-19: Frq Reduct@oHPre-Alarm
No.
(Hex.)
Name
Description
Default
(Range)
L8-19
(04BF)
Frq Reduct@oHPre-Alarm
Sets the ratio at which the drive derates the frequency reference during an
oH
alarm.
0.8
(0.1 - 0.9)
When these two conditions are correct, this function is enabled:
•
L8-03 = 4 [Overheat Pre-Alarm Selection = Run@L8-19 Rate]
•
oH
alarm is output
■
L8-27: OverCurr Det Gain
No.
(Hex.)
Name
Description
Default
(Range)
L8-27
(04DD)
OverCurr Det Gain
Sets the PM motor overcurrent detection level as a percentage of the motor rated current value.
300.0%
(0.0 - 1000.0%)
Note:
•
If the setting value for
L8-27
is the same or almost the same as the setting value for
L7-xx [Torque Limit]
, the drive can detect
oC2
[Overcurrent2]
.
•
This function is disabled when you set
L8-27 = 0.0
. Under usual circumstances, do not set
L8-27 = 0.0
.
•
If the drive rated current is much higher than the motor rated current, PM motor magnets can demagnetize when current flows at the
drive overcurrent detection level. When you set a low overcurrent detection level to prevent PM motor demagnetization, make sure that
you adjust
L8-27
.
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
Summary of Contents for Q2V Series
Page 2: ...This Page Intentionally Blank 2 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 12: ...12 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Page 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Page 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...