YASKAWA T1000V, Техническое руководство

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5.8 L: Protection Functions
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual 199
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Setting 6: UL3/UL4 at Run - Alarm
Undertorque detection works whenever a Run command is active. The operation continues after detection and a UL3/
UL4 alarm is triggered.
Setting 7: UL3/UL4 at Speed Agree - Fault
Undertorque detection is active only when the output speed is equal to the frequency reference, i.e., no detection during
acceleration and deceleration. The operation is stopped and a UL3/UL4 fault is triggered.
Setting 8: UL3/UL4 at Run - Fault
Undertorque detection works whenever a Run command is active. The operation is stopped and a UL3/UL4 fault is
triggered.
■ L6-02, L6-05: Torque Detection Level 1, 2
These parameters the detection levels for the torque detection functions 1 and 2.
Note: 1. The torque detection level 1 (L6-02) can also be supplied by an analog input set to H3-02 and H3-10 = 7. In this case the analog value
has priority and the setting L6-02 is disregarded. Torque detection level 2 (L6-05) can not be set by an analog input.
2. The detection levels for overtorque and undertorque are set as a percentage of the drive rated current when using V/f or OLV/PM
control mode. When using OLV control mode, the drive sets torque detection as a percentage of the motor rated torque.
■ L6-03, L6-06: Torque Detection Time 1, 2
These parameters set the time that the levels set in L6-02 and L6-05 have to be exceeded before an alarm/fault is
triggered.
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L7: Torque Limit
The torque limit function can be used to limit the torque in each of the four quadrants individually and thereby protect the
machinery. It can be used in the Open Loop Vector Control mode. A digital output programmed for “During Torque
Limit” (H2-01, H2-02, H2-03 = 30) can be switched when the drive is operating at the torque limit.
■ L7-01 to L7-04: Torque Limits
These parameters set the torque limits in each operation mode.
Note: If the multi-function analog input is programmed for “10: Positive Torque Limit”, “11: Negative Torque Limit”, “12:
Regenerative Torque Limit”, or “15: General Torque Limit”, the drive uses the lower value of either L7-01 through L7-04, or
analog input torque limit.
Refer to Setting 10/11/12/15: Positive/Negative/Regenerative/General Torque Limit (OLV only) on
page 181 for details on using analog torque limits.
■ L7-06: Torque Limit Integral Time Constant
Sets the integral time constant for the torque limit function.
No. Name Setting Range Default
L6-02 Torque Detection Level 1 0 to 300% 150%
L6-05 Torque Detection Level 2 0 to 300% 150%
No. Name Setting Range Default
L6-03 Torque Detection Time 1 0.0 to 10.0 s 0.1 s
L6-06 Torque Detection Time 2 0.0 to 10.0 s 0.1 s
No. Name Setting Range Default
L7-01 Forward Torque Limit 0 to 300% 200%
L7-02 Reverse Torque Limit 0 to 300% 200%
L7-03 Forward Regenerative Torque Limit 0 to 300% 200%
L7-04 Reverse Regenerative Torque Limit 0 to 300% 200%
No. Name Setting Range Default
L7-06 Torque Limit Integral Time Constant 5 to 10000 ms 200 ms