11.9 L: PROTECTION
456 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L8-40
(04F1)
Carrier Red Off-Delay
Time
Sets the length of time until the automatically reduced carrier frequency returns to the
condition before the reduction.
Determined by A1-02
(0.00 - 2.00 s)
780
L8-41
(04F2)
HCA alarm Selection
Sets the function to cause an HCA [Current Alarm] when the output current is more
than 150% of the drive rated current.
0 : Disabled
1 : Enabled
0
(0, 1)
780
L8-51
(0471)
Expert
STPo Current Level
Sets the STPo [Desynchronization Error] detection level as a percentage of the output
current.
0.0%
(0.0 - 300.0%)
780
L8-52
(0472)
Expert
STPo Integral Level
Sets the detection level for STPo [Desynchronization Error] related to the ACR integral
value.
1.0
(0.1 - 2.0)
780
L8-53
(0473)
Expert
STPo Integral Time
Sets the length of time until the drive detects STPo after exceeding the value of L8-51
[STPo Current Level].
1.0 s
(1.0 - 10.0 s)
780
L8-54
(0474)
Expert
STPo Id Diff Detection
Sets the Id deviation detection function for STPo [Desynchronization Error].
0 : Disable
1 : Enabled
1
(0, 1)
780
L8-55
(045F)
DB IGBT Protection
Sets the protection function for the internal braking transistor.
0 : Disable
1 : Enabled
1
(0, 1)
781
L8-56
(047D)
Expert
StallP@Acc Activation
Time
Sets the length time that the acceleration stall prevention function can continue to
operate before the drive detects an STPo [Desynchronization Error].
5000 ms
(100 - 5000 ms)
781
L8-57
(047E)
Expert
StallP Retry Counts
Sets the number of times the acceleration stall prevention function can operate until
speeds match before the drive detects an STPo [Desynchronization Error].
10 times
(1 - 10 times)
781
L8-90
(0175)
Expert
STPo Detect Level
Sets the detection level that the control fault must be equal to or more than to cause an
STPo [Desynchronization Error].
Determined by A1-02
(0 - 5000 times)
781
L8-93
(073C)
Expert
Lso Detect Time
Sets the length of time the drive will wait to start baseblock after detecting LSo [LSo
Fault].
1.0 s
(0.0 - 10.0 s)
781
L8-94
(073D)
Expert
Lso Detect Level
Sets the detection level for LSo [Low Speed Motor Step-Out] as a percentage of E1-04
[Max Output Frequency].
3%
(0 - 10%)
782
L8-95
(077F)
Expert
Lso Amount
Sets the average count of LSo [Low Speed Motor Step-Out] detections.
10 times
(1 - 50 times)
782
◆ L9: DRIVE PROTECTION 2
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L9-16
(11DC)
Expert
FAn1 Detect Time
Sets the detection time for FAn1 [Drive Cooling Fan Failure]. The manufacturer
recommends that you do not change this parameter value.
4.0 s
(0.0 - 30.0 s)
782
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