YASKAWA GA800 Technical Reference page 992

12.9 L: Protection Functions
The drive will not detect overtorque or undertorque.
1 : oL @ Speed Agree - Alarm only
The drive detects overtorque when the output frequency aligns with the frequency reference. Detection does not occur
during acceleration/deceleration. The drive outputs an oL3 [Overtorque Detection 1] and operation continues.
2 : oL @ RUN - Alarm only
When the Run command is enabled, the drive constantly detects overtorque. The drive outputs an oL3 and operation
continues.
3 : oL @ Speed Agree - Fault
The drive detects overtorque when the output frequency aligns with the frequency reference. Detection does not occur
during acceleration/deceleration. The drive outputs an oL3 and operation stops.
4 : oL @ RUN - Fault
When the Run command is enabled, the drive constantly detects overtorque. The drive outputs an oL3 and operation
stops.
5 : UL @ Speed Agree - Alarm only
The drive detects undertorque when the output frequency aligns with the frequency reference. Detection does not
occur during acceleration/deceleration. The drive outputs a UL3 [Undertorque Detection 1] and operation continues.
6 : UL @ RUN - Alarm only
When the Run command is enabled, the drive constantly detects undertorque. The drive outputs a UL3 and operation
continues.
7 : UL @ Speed Agree - Fault
The drive detects undertorque when the output frequency aligns with the frequency reference. Detection does not
occur during acceleration/deceleration. The drive outputs a UL3 and operation stops.
8 : UL @ RUN - Fault
When the Run command is enabled, the drive constantly detects undertorque. The drive outputs a UL3 and operation
stops.
■
L6-02: Torque Detection Level 1
No.
Name
(Hex.)
L6-02 Torque Detection Level 1
(04A2)
Note:
• Set the torque detection level as a percentage of the drive rated output current in all control methods to set the mechanical weakening
detection level.
• You can also use an analog input terminal to supply the torque detection level. To enable this function, set H3-xx = 7 [MFAI Function Select
= Overtorque/Undertorque DetectLvl]. If you set L6-02 and H3-x = 7, the analog input is most important and the drive disables L6-02.
■
L6-03: Torque Detection Time 1
No.
Name
(Hex.)
L6-03 Torque Detection Time 1
(04A3)
■
L6-04: Torque Detection Selection 2
No.
Name
(Hex.)
L6-04 Torque Detection Selection 2
(04A4)
992
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
Sets the detection time for Overtorque/Undertorque Detection 1.
V/f CL-V/f OLV CLV AOLV
Sets the speed range that detects overtorque and undertorque and the operation of drives (operation
status) after detection.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Default
(Range)
150%
(0 - 300%)
Default
(Range)
0.1 s
(0.0 - 10.0 s)
Default
(Range)
0
(0 - 8)