YASKAWA GA700 Technical Manual page 863

Note:
• The smallest set torque limit is enabled when H3-02, H3-06, or H3-10 = 11, 15 [MFAI Function Select = Reverse Torque Limit,
General Torque Limit], or when torque limits are set with the communication option.
• When increasing the setting value, when the drive capacity is greater than or equal to the motor output. Note that issues of oC [Drive
Overcurrent] may occur if the setting value is too high.
• Note that the motor may stall If the setting is too low when used with significant loads.
■
L7-03: Forward Regenerative TorqueLimit
No.
Name
(Hex.)
L7-03 Forward
Regenerative
(04A9)
TorqueLimit
RUN
Note:
• The smallest set torque limit is enabled when H3-02, H3-06, or H3-10 = 11, 12, 15 [MFAI Function Select = Reverse Torque Limit,
Regenerative Torque Limit, General Torque Limit] or when torque limits are set with the communication option.
• When increasing the setting value, when the drive capacity is greater than or equal to the motor output. Note that issues of oC [Drive
Overcurrent] may occur if the setting value is too high.
• Note that the motor may stall If the setting is too low when used with significant loads.
■
L7-04: Reverse Regenerative TorqueLimit
No.
Name
(Hex.)
L7-04 Reverse Regenerative
TorqueLimit
(04AA)
RUN
Note:
• The smallest set torque limit is enabled when sets H3-02, H3-06, or H3-10 = 10, 12, 15 [MFAI Function Select = Forward Torque
Limit, Regenerative Torque Limit, General Torque Limit], or when torque limits are set with the communication option.
• When increasing the setting value, when the drive capacity is greater than or equal to the motor output. Note that issues of oC [Drive
Overcurrent] may occur if the setting value is too high.
• Note that the motor may stall If the setting is too low when used with significant loads.
■
L7-06: TorqueLimitIntegralTime Constant
No.
Name
(Hex.)
L7-06 TorqueLimitIntegral
Time Constant
(04AC)
Decrease the setting value to improve torque limit responsiveness when using torque limits when L7-07 = 1
[Forward Torque Limit = I-ctrl @ Acc/Dec].
Increase the setting value if hunting issues occur when torque limits are active.
■
L7-07: TrqLimContMethodSelduringAcc/Dec
No.
Name
(Hex.)
L7-07 TrqLimContMethod
SelduringAcc/Dec
(04C9)
0 : P-ctrl @ Acc/Dec
The torque limit function works with proportional control during acceleration and deceleration, and switches to
integral control at constant speed. Use this setting when accelerating or decelerating to the desired speed has
priority over the torque limit during speed changes.
1 : I-ctrl @ Acc/Dec
The torque limit function always uses integral control. Use this setting when a highly accurate torque limit is
required such as with winding machines, even during speed changes.
Prioritizing torque limit may produce the following effects.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the torque limit value for forward regenerative states as a percentage of
the motor rated torque.
V/f CL-V/f OLV CLV AOLV
Sets the torque limit value for reversed regenerative states as a percentage
of the motor rated torque.
V/f CL-V/f OLV CLV AOLV
Sets the integral time constant for the torque limit function.
V/f CL-V/f OLV CLV AOLV
Selects the function of torque limit during acceleration and deceleration.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
11.9 L: Protection Function
Default
(Range)
200%
(0 - 300%)
Default
(Range)
200%
(0 - 300%)
Default
(Range)
200 ms
(5 - 10000 ms)
Default
(Range)
0
(0, 1)
11
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