Fuji Electric FRENIC-Ace series, User Manual

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5.3 Description of Function Codes
5-87
FU
NCT
IO
N
C
O
DE
S
Chap 5
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Torque limit control mode
Torque limit is performed by limiting torque current flowing across the motor.
The graph below shows the relationship between the torque and the output frequency at the constant torque
current limit.
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Torque limiter (F40, F41, E16, E17) Data setting range: 0 to 300%; 999 (Disable)
These function codes specify the operation level at which the torque limiters become activated, as the percentage
of the motor rated torque.
Function code Name Torque limit feature
F40 Torque limiter 1 (Driving) Driving torque current limiter 1
F41 Torque limiter 1 (Braking) Braking torque current limiter 1
E16 Torque limiter 2 (Driving) Driving torque current limiter 2
E17 Torque limiter 2 (Braking) Braking torque current limiter 2
Although the setting range of the torque is 300%, the torque limiter determined by the overload current of
the unit internally limits the torque current output. Therefore, the torque current output is automatically
limited at a value lower than 300%, the maximum setting value.
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Analog torque limiter (E61 to E63)
The torque limit value can be specified by analog inputs (voltage or current) through terminals [12], [C1] (C1
function), and [C1] (V2 function). Assign by Extension function selection function codes E61, E62, E63 (Terminal
[12], [C1] (C1 function), [C1] (V2 function) as follows.
E61, E62, E63 data Function Description
7 Analog torque limiter A
Used when analog inputs are used as torque limiters.
Input modes: 200% / 10 V or 20 mA
8 Analog torque limiter B
If these terminals have been set up to have the same data, the operation priority is given in the following order: E61
> E62 > E63
Refer to E59 on how to use terminals [C1] (C1 function) and [C1] (V2 function).
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Torque limiter levels specified via communications link (S10, S11)
The torque limiter levels can be changed via the communications link. Communication dedicated codes S10, S11
interlock with the function codes F40, F41.
Torque Constant torque limit
Constant output limit
Base frequency
Output frequency