Parameter Details
12
12.8 H: Terminal Functions
YASKAWA SIEPC71061705H GA700 Series Technical Manual 855
Figure 12.111 Torque Limits and Analog Input Setting Parameters
Note:
• When L7-01 to L7-04 and analog inputs or communication option torque limits set torque limits for the same quadrant, the lower value
is enabled.
In this 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 to L7-04 = 200%, and MFAI torque limit = 150%
• The drive output current limits maximum output torque. The torque limit is 150% of the rated output current for HD and to 120% of
the rated output current for ND. The actual output torque is not more than the limits of the drive rated output current when you set the
torque limit to a high value.
If you use drives in applications where the vertical axis can fall, make sure that you know these items:
• Correctly configure drives and motors.
• Correctly set parameters.
• You can change parameter values after you do Auto-Tuning.
• Use a system that will not let the vertical axis fall if the drive fails.
Figure 12.112 shows the relation between torque limits from parameters and torque limits from analog input.
Figure 12.112 Torque Limits from Parameters and Analog Inputs
■ 11: Reverse Torque Limit
Setting Value Function Description
11 Reverse Torque Limit
Enters the load torque limit if the motor rated torque is 100%.
Note:
When you use L7-01 to L7-04 and analog inputs to set torque limits for the same quadrant, it will enable the lower torque limit.
■ 12: Regenerative Torque Limit
Setting Value Function Description
12 Regenerative Torque Limit
Enters the regenerative torque limit if the motor rated torque is 100%.
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