YASKAWA
SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
733
■
F: Not Used
Setting Value
Function
Description
F
Not Used
Use this setting for unused terminals or to use terminals in through mode.
When you set a terminal that is not in use to F, you can use the signal input to the terminal as PLC analog signal
input through MEMOBUS/Modbus communications or the communication option. This input signal does not
have an effect on drive operation. This functions the same as setting 1F (Through Mode).
■
10: Forward Torque Limit
Setting Value
Function
Description
10
Forward Torque Limit
Enters the forward torque limit if the motor rated torque is 100%.
WARNING!
Sudden Movement Hazard. Set correct torque limits for applications, for example elevator applications. If you set
torque limits incorrectly, motor torque that is not sufficient can cause damage to equipment and cause serious injury or death.
Torque Limit Configuration Method
Use one of these methods to set torque limits:
•
Individually set the four torque limit quadrants using
L7-01 to L7-04 [Torque Limit]
.
•
Use MFAI to individually set the four torque limit quadrants. Set
H3-02, H3-06,
or
H3-10 [MFAI Function
Select]
to
10, 11,
or
12 [Forward/Reverse/Regenerative Torque Limit]
.
•
Use MFAI to set all four torque limit quadrants together. Set
H3-02, H3-06,
or
H3-10
to
15 [General Torque
Limit]
.
The figure shows the configuration method for each quadrant.
Figure 11.78 Torque Limits and Analog Input Setting Parameters
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.
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 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.
The figure shows the relation between torque limits from parameters and torque limits from analog input.
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
Содержание CR700
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