10.11 L: Protection Functions
574 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L6-04
(04A4)
Torque Detection
Selection 2
Sets the speed range that detects overtorque and undertorque and the
operation of drives (operation status) after detection.
0 : Disabled
1 : oL @ Speed Agree - Alarm only
2 : oL @ RUN - Alarm only
3 : oL @ Speed Agree - Fault
4 : oL @ RUN - Fault
5 : UL @ Speed Agree - Alarm only
6 : UL @ RUN - Alarm only
7 : UL @ Speed Agree - Fault
8 : UL @ RUN - Fault
0
(0 - 8)
972
L6-05
(04A5)
Torque Detection
Level 2
Sets the detection level for Overtorque/Undertorque Detection 2. In
V/f control, drive rated output current = 100% value. In vector
control, motor rated torque = 100% value.
150%
(0 - 300%)
973
L6-06
(04A6)
Torque Detection
Time 2
Sets the detection time for Overtorque/Undertorque Detection 2.
0.1 s
(0.0 - 10.0 s)
973
L6-07
(04E5)
Torque Detection
Filter Time
Sets the time constant for a primary filter to the torque reference or
to the output current used to detect overtorque/undertorque.
0 ms
(0 - 1000 ms)
973
L6-08
(0468)
Mechanical
Fatigue Detect
Select
Sets the speed where the drive detects mechanical deterioration and
how the drive operates (operation status) after detection.
0 : Disabled
1 : oL5 @ Speed > L6-09 - Alarm
2 : oL5 @ lSpeedl > L6-09 - Alarm
3 : oL5 @ Speed > L6-09 - Fault
4 : oL5 @ lSpeedl > L6-09 - Fault
5 : UL5 @ Speed < L6-09 - Alarm
6 : UL5 @ lSpeedl < L6-09 - Alarm
7 : UL5 @ Speed < L6-09 - Fault
8 : UL5 @ lSpeedl < L6-09 - Fault
0
(0 - 8)
973
L6-09
(0469)
Mech Fatigue
Detect Speed Level
Sets the speed level as a percentage where the drive will operate the
mechanical deterioration detection function, with E1-04 [Maximum
Output Frequency] is the 100% value.
110.0%
(-110.0 - +110.0%)
974
L6-10
(046A)
Mech Fatigue
Detect Delay Time
Sets the time for mechanical deterioration detection.
0.1 s
(0.0 - 10.0 s)
974
L6-11
(046B)
Mech Fatigue Hold
Off Time
Sets the time that the drive will start mechanical deterioration
detection triggered by the cumulative operation time of the drive.
0 h
(0 - 65535 h)
974
◆ L7: Torque Limit
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L7-01
(04A7)
RUN
Forward Torque
Limit
Sets the torque limit value for forward motoring as a percentage,
where motor rated torque is the 100% value.
200%
(0 - 300%)
975
L7-02
(04A8)
RUN
Reverse Torque
Limit
Sets the torque limit value for reversed motoring as a percentage,
where motor rated torque is the 100% value.
200%
(0 - 300%)
975
L7-03
(04A9)
RUN
Forward
Regenerative Trq
Limit
Sets the torque limit value for forward regenerative conditions as a
percentage of the motor rated torque.
200%
(0 - 300%)
976
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