Fuji Electric Frenic Mega Series

5.4 Details of Function Codes
5-110
 Torque limiter (Operating conditions) (H73)
H73 specifies whether the torque limiter is enabled or disabled during acceleration/deceleration and running
at constant speed.
Table 5.4-45
Data for H73 During accelerating/decelerating During running at constant speed
0 Enable Enable
1 Disable Enable
2 Enable Disable
 Torque limiter (Frequency increment limit for braking) (H76) Data setting range: 0.0 to 500.0 (Hz)
H76 specifies the increment limit of the frequency in limiting torque for braking. The factory default is 5.0 Hz.
If the increasing frequency during braking reaches the limit value, the torque limiters no longer function,
resulting in an overvoltage trip. Such a problem may be avoided by increasing the setting value of H76.
The torque limiter and current limiter are very similar in function. If both are activated concurrently,
they may conflict with each other and cause hunting. Avoid concurrent activation of these limiters.
Under vector control with/without speed sensor
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
Table 5.4-46
Function Code Name Vector control Remarks
F40
Torque limiter 1-1
Y
F41
Torque limiter 1-2
Y
E16
Torque limiter 2-1
Y
E17
Torque limiter 2-2
Y
H73
Torque Limiter (Operating conditions)
Y
H74
Torque Limiter (Control target)
Y
H75
Torque Limiter (Target quadrants)
Y
H76
Torque Limiter (Frequency increment limit for
braking)
N
E61 to E63
Terminal [12] Extended Function
Terminal [C1] Extended Function
Terminal [V2] Extended Function
Y
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).
Table 5.4-47
Data for H74 Control target
0
Motor-generating torque limit
1
Torque current limit
2
Output power limit