YASKAWA FSDrive-MV1000 Parameter Manual page 149

u d5: Torque Control
Torque Control defines a setpoint for the motor torque and is available for CLV (A1-02 = 3).
Torque Control Operation
n
Torque control can be enabled either by setting parameter d5-01 to 1 or by a contact input (H1-
illustrates the working principle.
Figure 2.39
Torque Compensation
External Torque Reference
External Speed Limit
Speed Limit set in d5-04
Speed Feedback
Speed Limit Bias d5-05
The externally input torque reference is used as the target value for the motor output torque. If the motor torque reference
and the load torque are not in balance when in Torque Control, the motor accelerates or decelerates. To prevent operation
beyond the speed limit, compensate the external torque reference value if the motor speed reaches the limit. The
compensation value is calculated using the speed limit, speed feedback, and the speed limit bias.
If an external torque compensation value is input, it is added to the speed limit compensated torque reference value. The
value calculated is limited by the L7-
monitored in U1-09. The L7-
the L7- settings even if the external torque reference value is increased.
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
d5-02
Torque Reference Delay
C1- , C2-
Soft
d5-03
Starter
1
2
Figure 2.39 Torque Control Block Diagram
settings, and is then used as the internal torque reference, which can be
settings have highest priority. The motor cannot be operated with a higher torque than
d5-08
Speed Limiter
Compensated torque
reference
2.4 d: Reference Settings
= 71). Figure 2.39
U1-09
L7-
+
Torque Internal Torque
Limits Reference
+
common_TMonly
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