Function Applications
-488-
In speed control mode, if F2-11 is set to 1 to 8, the torque upper limit differs in motoring state and
generating state. The torque upper limit FS in motoring state is defined by F2-10, and that in
generating state is defined by F2-12, as shown in the following figure.
Figure 4-42 Torque upper limit in speed control mode
Description
Para. No. Name
Default
Value Range
-
F2-53
Power limit during generating
0
0: Disabled
1: Enabled
-
F2-54
Power upper limit during
generating
Model dependent
0.0% to 200.0%
For scenarios with cam load, quick acceleration/deceleration, and sudden unloading in which braking
resistors are not used, enabling power limit during generating can effectively reduce bus voltage
overshoot during motor braking so as to prevent overvoltage. F2-54 (power upper limit during
generating) is a percentage relative to the rated motor power. If overvoltage still occurs after power
limit during generating is enabled, decrease the value of F2-54.
4.4.8 Torque Control
Para. No. Name
Default
Value Range Description
A0-00
Speed/Torque control
mode
0
0: Speed control
1: Torque control
Two control modes are provided in
SVC mode: speed control and
torque control.
A0-01
Torque reference
source
0
0: Digital setting (A0-
03)
1: AI1
2: AI2
3: AI3
4: Reserved
5: Communication
(1000H)
6: MIN (AI1, AI2)
7: MAX (AI1, AI2)
Used to set the torque setting
command. There are a total of eight
torque setting modes.
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