5.8 L: Protection Functions
positive torque reference
negative torque reference
F ig u r e 5 .3 9 T o r q u e L im it P a r a m e t e r s
■ L7-01 to L7-04: Torque Limits
These parameters set the torque limits in each operation mode.
A setting o f 100% is equal to the motor rated torque.
No.
Name
Setting Range
Default
L7-01
Forward Torque Limit
0 to 300%
300%
L7-02
Reverse Torque Limit
0 to 300%
300%
L7-03
Forward Regenerative Torque Limit
0 to 300%
300%
L 7-04
Reverse Regenerative Torque Limit
0 to 300%
300%
■ L7-16: Torque Limit Process at Start
Assigns a time filter to allow the torque limit to build at start.
No.
Name
Setting Range
Default
L 7-16
Torque Lim it Process at Start
0 to 1
1
Setting 0: Disabled
Toque limit is created at start without a delay time. Disable L7-16 to maximize response time when the application
requires sudden acceleration or deceleration at start.
Setting 1: Enabled
A time filter is added to allow the torque limit to build at start.
♦ L8: Drive Protection
■ L8-02: Overheat Alarm Level
Sets the overheat alarm (oH) detection level.
The drive will output an alarm when the heatsink temperature exceeds the alarm level set in parameter L8-02.
When an output terminal is set for the oH pre-alarm (Ы2-ПП = 20), the switch will close when the heatsink temperature
rises above L8-02.
No.
Name
Setting Range
Default
L 8-02
Overheat Alarm Level
50 to 150 °C
Determined b y o2-04
■ L8-03: Overheat Pre-Alarm Operation Selection
Sets the operation when an overheat pre-alarm is detected.
No.
Name
Setting Range
Default
L8-03
Overheat Pre-Alarm Operation Selection
0 to 3
3
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YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual