Parameter List
11
11.9 L: PROTECTION
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 455
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L8-09
(04B5)
Ground Fault Selection
Sets the function to enable and disable ground fault protection.
0 : Disabled
1 : Enabled
Determined by o2-04
(0, 1)
776
L8-10
(04B6)
Fan Operate Selection
Sets operation of the heatsink cooling fan.
1 : Dur Run (OffDly)
2 : Always On
3 : Fan ON @Heating of Drive
1
(1 - 3)
776
L8-11
(04B7)
Fan Off-Delay Time
Sets the length of time that the drive will wait before stopping the cooling fan after
cancelling the Run command when L8-10 = 1 [Fan Operate Selection = Dur Run
(OffDly)].
60 s
(0 - 300 s)
776
L8-12
(04B8)
Ambient Temperature
Setting
Sets the ambient temperature of the drive installation area.
40 °C
(-10 - +50 °C)
776
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].
Note:
Contact the manufacturer 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
1 : Enabled
1
(0, 1)
776
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.
0 : Disabled
1 : Enabled
0
(0, 1)
777
L8-19
(04BF)
Frq Reduct@oHPre-
Alarm
Sets the ratio at which the drive derates the frequency reference when during an oH
alarm.
0.8
(0.1 to 0.9)
777
L8-20
(04C0)
Expert
CF / STPo Selection
Sets operation after the drive detects a CF fault when A1-02 = 4 [Control Method =
Adv OLVector].
1 : Disabled
2 : CF/STPo Detection Enabled
3 : CF ALM/Stop
Determined by A1-02
(1 - 3)
777
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 - 400.0%)
777
L8-29
(04DF)
LF2 Unbalance Selection
Sets the function to detect LF2.
0 : Disabled
1 : Enabled
1
(0, 1)
778
L8-31
(04E1)
LF2 Detect Time
Sets the LF2 [Output Current Imbalance] detection time.
3
(1 to 100)
778
L8-32
(04E2)
Fan Failure Selection
Sets operation when the drive detects FAn [Internal Agitating Fan Fault].
0 : Ramp->Stop
1 : Coast->Stop
2 : Fast Stop (C1-09)
3 : Alarm Only
4 : Run@L8-19 Rate
1
(0 - 4)
778
L8-35
(04EC)
Installation Selection
Sets the type of drive installation.
0 : IP00/IP20/Open-Chassis
1 : Side-by-Side Mounting
2 : IP21/NEMAType 1/IP55
3 : Finless/Ext.Heatsink
Determined by the drive
model
(0 - 3)
779
L8-38
(04EF)
Carrier Reduction Mode
Sets the carrier frequency reduction function. The drive reduces the carrier frequency
when the output current is more than a specified level.
0 : Disabled
1 : Enable<6 Hz
2 : Enab@AllSpeed
Determined by A1-02,
C6-01, and o2-04
(0 - 2)
779
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