12.8 L: PROTECTION
666 SIEPCYEUOQ2V01A Q2V Technical Manual
• Use MFAI to individually set the four torque limit quadrants. Set H3-02, H3-10 = 9, B, C [MFAI Function
Select = FW Trq Lim, Rev Trq Lim, RegenTrqLim].
• Use MFAI to set all four torque limit quadrants together. Set H3-02, H3-10 = D [GenerTrqLim].
• Use a communication option to set all four torque limit quadrants together.
This figure shows the configuration method for each quadrant.
Figure 12.127 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 drive
enables the lowest value.
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.
■ L7-01: FW Torque Limit
No.
(Hex.)
Name Description
Default
(Range)
L7-01
(04A7)
RUN
FW Torque Limit
Sets the torque limit value for forward motoring as a percentage, where motor rated torque is the
100% value.
200%
(0 - 300%)
Note:
• The lower torque limit is enabled when you set the torque limit by the following method.
–Set H3-02 or H3-10 = 9, D [MFAI Function Select = FW Trq Lim, GenerTrqLim].
–Use a communication option to set the torque limits
• You must think about drive capacity when a large quantity of torque is necessary. If you set the value too high, the drive can detect oC
[Overcurrent].
• If you set the value too low with large loads, the motor can stall.
■ L7-02: RV Torque Limit
No.
(Hex.)
Name Description
Default
(Range)
L7-02
(04A8)
RUN
RV Torque Limit
Sets the torque limit value for reversed motoring as a percentage, where motor rated torque is the
100% value.
200%
(0 - 300%)
Note:
• The lower torque limit is enabled when you set the torque limit by the following method.
– Set H3-02 or H3-10 = 9, D [MFAI Function Select = FW Trq Lim, GenerTrqLim].
– Use a communication option to set the torque limits
• You must think about drive capacity when a large quantity of torque is necessary. If you set the value too high, the drive can detect oC
[Overcurrent].
• If you set the value too low with large loads, the motor can stall.
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