Yaskawa L1000E AC Drive Technical Manual for CIMR-LE Models for Elevator Applications - Manual (Page 223)

5.8 L: Protection Functions
YASKAWA ELECTRIC SIEP YAIL1E 01A YASKAWA AC Drive L1000E Technical Manual 223
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Figure 5.39
Figure 5.39 Overtorque Detection Operation
Figure 5.40
Figure 5.40 Undertorque Detection Operation
Note: 1. The torque detection function uses a hysteresis of 10% of the drive rated output current and motor rated torque.
2. In V/f, the level is set as a percentage of the drive rated output current. In OLV, CLV, and CLV/PM, it is set as a percentage of the
motor rated torque.
■ L6-01, L6-04: Torque Detection Selection 1, 2
The torque detection function is triggered when the current or torque exceeds the levels set in L6-02 and L6-05 for longer
than the time set in L6-03 and L6-06. L6-01 and L6-04 select the conditions for detection and the operation that follows.
Setting 0: Disabled
Setting 1: oL3, oL4 at speed agree (Alarm)
Overtorque detection is active only when the output speed is equal to the speed reference, i.e., no detection during
acceleration and deceleration. The operation continues after detection and an oL3/oL4 alarm is triggered.
Setting 2: oL3, oL4 at run (Alarm)
Overtorque detection works as long as the Up/Down command is active. The operation continues after detection and an
oL3 or oL4 alarm is triggered.
Setting 3: oL3, oL4 at speed agree (Fault)
Overtorque detection is active only when the output speed is equal to the speed reference, i.e., no detection during
acceleration and deceleration. The operation is stopped and an oL3 or oL4 fault is triggered.
Setting 4: oL3, oL4 at run (Fault)
Overtorque detection works as long as a Up/Down command is active. Operation stops and an oL3 or oL4 fault is
triggered.
Setting 5: UL3, UL4 at speed agree (Alarm)
Undertorque detection is active only when the output speed is equal to the speed reference, i.e., no detection during
acceleration and deceleration. The operation continues after detection and an oL3 or oL4 alarm is triggered.
No. Parameter Name Setting Range Default
L6-01 Torque Detection Selection 1 0 to 8 0
L6-04 Torque Detection Selection 2 0 to 8 0
Motor current / torque
L6-02/05
10 % hysteresis
Torque detection 1 (NO)
or
Torque detection 2 (NO)
L6-03/06
ON
L6-03/06
10 % hysteresis
ON
common_TMo
Motor current / torque
L6-02/05
10 % hysteresis
Torque detection 1 (NO)
or
Torque detection 2 (NO)
L6-03/06
ON
L6-03/06
ON
commo
n_TMon
ly