11.11 L: Protection Functions
620 YASKAWA SIEPC71061737D GA800 Drive Technical Reference
◆ L6: Torque Detection
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L6-01
(04A1)
Torque Detection
Selection 1
Sets torque detection conditions that will trigger an overtorque or undertorque response
from the drive.
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)
991
L6-02
(04A2)
Torque Detection Level 1
Sets the detection level for Overtorque/Undertorque Detection 1. In V/f control, drive rated
output current = 100% value. In vector control, motor rated torque = 100% value.
150%
(0 - 300%)
992
L6-03
(04A3)
Torque Detection Time 1
Sets the detection time for Overtorque/Undertorque Detection 1.
0.1 s
(0.0 - 10.0 s)
992
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)
992
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%)
993
L6-06
(04A6)
Torque Detection Time 2
Sets the detection time for Overtorque/Undertorque Detection 2.
0.1 s
(0.0 - 10.0 s)
993
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)
993
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 @ |Speed| > L6-09 - Alarm
3 : oL5 @ Speed > L6-09 - Fault
4 : oL5 @ |Speed| > L6-09 - Fault
5 : UL5 @ Speed < L6-09 - Alarm
6 : UL5 @ |Speed| < L6-09 - Alarm
7 : UL5 @ Speed < L6-09 - Fault
8 : UL5 @ |Speed| < L6-09 - Fault
0
(0 - 8)
994
L6-09
(0469)
Mech Fatigue Detect
Speed Level
Sets the speed level where the drive will operate the mechanical deterioration detection
function, as a percentage of the Maximum Output Frequency.
Note:
Parameter A1-02 [Control Method Selection] selects which parameter is the maximum
output frequency.
• A1-02 ≠ 8 [EZOLV]: E1-04 [Maximum Output Frequency]
• A1-02 = 8: E9-02 [Maximum Speed]
110.0%
(-110.0 - 110.0%)
994
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