YASKAWA GA700 Technical Manual page 811

Figure 11.106 Torque Limits and Analog Input Settings Parameters
Note:
• The lower torque limit is enabled when using both L7-01 through L7-04 and analog inputs to set torque limits for the same quadrant.
As in the following example of parameter settings, the torque limit for quadrant 1 is 130% and the torque limit for quadrants 2, 3, and 4
is 150%.
Settings: L7-01 = 130%; L7-02 through L7-04 = 200%; and MFAI torque limit = 150%
• Maximum output torque is limited by the output current of the drive. Torque is limited to 150% of the rated output current for HD and
to 120% of the rated output current for ND. The actual output torque cannot exceed the limits of the drive rated output current even if
the torque limit is set to a high value.
Be aware of the following points when using drives in applications in which the vertical axis may fall.
• Configure drives and motors appropriately.
• Configure parameters correctly.
• Parameter setting values may be changed after performing Auto-Tuning.
• Design the system that can prevent the vertical axis from falling if the drive fails.
The following figure illustrates the relationship between torque limits via parameters and torque limits via analog
input.
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11: Reverse Torque Limit
Setting Function
11 Reverse Torque Limit
Note:
The lower torque limit is enabled when using both L7-01 through L7-04 and analog inputs to set torque limits for the same quadrant.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Figure 11.107 Torque Limits via Parameters and Analog Inputs
V/f CL-V/f OLV CLV
Inputs the load torque limit assuming that the motor rated torque is 100%.
Description
AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
11.8 H: Terminal Functions
11
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