5.4 Details of Function Codes
5-187
Chapter 5 Function Code
Details of
Function Codes
F codes
E codes
C codes
P codes
H09 to H18
A codes
b codes
r codes
J codes
d67
U codes
y codes
H18
Torque Control (Operation Selection)
Related Function Code: d32, d33 Torque Control (Speed Limit 1,2)
When "vector control with/without speed sensor" is selected, the inverter can control the motor-generating
torque according to a torque command sent from external sources.
Torque Control (Operation selection) (H18)
To enable the torque control, it is necessary to select the torque control by the function code H18. In addition,
selection is possible whether the inverter is controlled by the torque current command or torque command.
Table 5.4-117
Data for H18 Available control
0 Disable (Speed control)
2 Operation (Torque Control: Torque current command)
3 Operation (torque control: Torque command)
Torque command
Torque commands can be given as analog voltage input (via terminals [12] and [V2]) or analog current input
(via terminal [C1]), or via the communications link (communication dedicated function codes S02 and S03).
To use analog voltage/current inputs, it is necessary to set E61 (for terminal [12]), E62 (for terminal [C1]), or
E63 (for terminal [V2]) data to "10" or "11."
Table 5.4-118
Input Command Form
Setting of
Function Code
Specifications
Torque command E61 = 10 Motor rated torque ±200% / ±10 V
Terminal [12]
(-10 V to 10 V)
Torque current command E61 = 11 Motor rated torque current ±200% / ±10 V
Torque command E63 = 10 Motor rated torque ±200% / ±10 V
Terminal [V2]
(-10 V to 10 V)
Torque current command E63 = 11 Motor rated torque current ±200% / ±10 V
Torque command E62 = 10 Motor rated torque 200% / 20 mA
Terminal [C1]
(4 to 20 mA)
Torque current command E62 = 11 Motor rated torque current 200% / 20 mA
S02
(-327.68 to 327.67%)
Torque command - Motor rated torque / ±100.00%
S03
(-327.68 to 327.67%)
Torque current command - Motor rated torque current / ±100.00%
Polarity of Torque Commands
The polarity of a torque command switches according to the combination of the polarity of an external torque
command and a run command on terminal [FWD] / [REV], as listed below.
Table 5.4-119
Polarity of torque command Run command Torque polarity
FWD ON
Positive torque (Forward driving/Reverse braking)
Positive
REV ON
Negative torque (Forward braking/Reverse driving)
FWD ON
Negative torque (Forward braking/Reverse driving)
Negative
REV ON
Positive torque (Forward driving/Reverse braking)
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