1.11 L: Protection Functions
76 YASKAWA TOEPYAIGA5002A GA500 Programming
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L8-35
(04EC)
Installation Method
Selection
Sets the type of drive installation.
0 : IP20/UL Open Type
1 : Side-by-Side Mounting
2 : IP20/UL Type 1
3 : External Heatsink
0
(0 - 3)
401
L8-40
(04F1)
Carrier Freq Reduction
Off-Delay
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)
402
L8-41
(04F2)
High Current 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 : No
1 : Yes
0
(0, 1)
402
L8-51
(0471)
Expert
STPo I Detection Level
Sets the STPo [Motor Step-Out Detected] detection level as a percentage of the motor
rated current.
Note:
Parameter A1-02 [Control Method Selection] selects which parameter is the motor
rated current.
• A1-02 = 5 [OLV/PM]: E5-03 [PM Motor Rated Current (FLA)]
• A1-02 = 8 [EZOLV]: E9-06 [Motor Rated Current (FLA)]
0.0%
(0.0 - 300.0%)
402
L8-52
(0472)
Expert
STPo Integration Level
Sets the detection level for STPo [Motor Step-Out Detected] related to the ACR integral
value.
1.0
(0.1 - 2.0)
403
L8-53
(0473)
Expert
STPo Integration Time
Sets the length of time until the drive detects STPo after it is more than the value of L8-51
[STPo I Detection Level].
1.0 s
(1.0 - 10.0 s)
403
L8-54
(0474)
Expert
STPo Id Diff Detection
Sets the Id deviation detection function for STPo [Motor Step-Out Detected].
0 : Disabled
1 : Enabled
1
(0, 1)
403
L8-55
(045F)
Internal DB
TransistorProtection
Sets the protection function for the internal braking transistor.
0 : Disable
1 : Protection Enabled
1
(0, 1)
403
L8-56
(047D)
Expert
Stall P @ Accel
Activation Time
Sets the length time that the acceleration stall prevention function can continue to operate
before the drive detects an STPo [Motor Step-Out Detected].
5000 ms
(100 - 5000 ms)
403
L8-57
(047E)
Expert
Stall Prevention Retry
Counts
Sets the number of times the acceleration stall prevention function can operate until speeds
agree before the drive detects an STPo [Motor Step-Out Detected].
10
(1 - 10 times)
404
L8-90
(0175)
Expert
STPo Detection Level
(Low Speed)
Sets the detection level that the control fault must be equal to or more than to cause an
STPo [Motor Step-Out Detected].
Determined by A1-02
(0 - 5000 times)
404
L8-93
(073C)
Expert
Low Speed Pull-out
DetectionTime
Sets the length of time the drive will wait to start baseblock after detecting LSo [Low
Speed Motor Step-Out].
1.0 s
(0.0 - 10.0 s)
404
L8-94
(073D)
Expert
Low Speed Pull-out
Detect Level
Sets the detection level for LSo [Low Speed Motor Step-Out] as a percentage of E1-04
[Maximum Output Frequency].
3%
(0 - 10%)
404
L8-95
(077F)
Expert
Low Speed Pull-out
Amount
Sets the average count of LSo [Low Speed Motor Step-Out] detections.
10
(1 - 50 times)
404
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