EQ7 Series Instruction Manual - TECO-Westinghouse Motor Company

Under vector control without/with speed sensor (F42 = 5, 6)
If the inverter’s output torque exceeds the specified levels of the torque limiters (F40, F41, E16, E17, and E61 to
E63), the inverter controls the speed regulator's output (torque command) in speed control or a torque command
in torque control in order to limit the motor-generating torque.
To use the torque limiters, it is necessary to configure the function codes listed in the table below.
Related function codes
Function
Vector
Name
V/f control
code
control
F40 Torque Limiter 1-1 Y Y
F41 Torque Limiter 1-2 Y Y
E16 Torque Limiter 2-1 Y Y
E17 Torque Limiter 2-2 Y Y
H73
Torque Limiter (Operating
conditions)
Y
Y
H74 Torque Limiter (Control target) N Y
H75 Torque Limiter (Target quadrants) N Y
H76
Torque Limiter
(Frequency increment limit for
Y
N
braking)
E61 to E63
Terminal [12] Extended Function
Terminal [C1] Extended Function
Terminal [V2] Extended Function
Y
Y
Remarks
7: Analog torque limit value
A
8: Analog torque limit value
B
• Torque Limiter (Control target) (H74)
Under vector control, the inverter can limit motor-generating torque or output power, as well as a torque current
(default).
Data for H74
Control target
0 Motor-generating torque limit
1 Torque current limit
2 Output power limit
4-61