5.3 Description of Function Codes 5.3.10 U codes (Customizable logic operation)
Specific function codes
The following function codes can change values on memory by using the customizable logic “Function code switch
(6003)”. Overwritten values are cleared with power off.
• If using “Function code switching (6003)”, there is a risk of function code setting values being changed
suddenly, adversely affecting motors being controlled due to a sudden change in speed and torque.
To ensure that setting values do not change suddenly, use “Rate of change limiting (4006)” to suppress
setting value changes, and give careful consideration to and check whether sudden changes in setting
values will cause problems before use.
Torque limiter 2 (Driving)
Torque limiter 2 (Braking)
Restart mode after
momentary power failure
(Operation selection)
Frequency arrival delay
(FAR2)
Frequency limiter (Upper limit)
Frequency arrival detection
width (Detection width)
Frequency limiter (Lower limit)
Frequency detection
(Operation level)
DC braking 1 (Starting
frequency)
Frequency detection
(Hysteresis width)
DC braking 1 (Braking level)
Overload early
warning/current detection
(Operation level)
DC braking 1 (Braking time)
Overload early
warning/current detection
(Timer time)
Starting frequency 1 (Holding
time)
Current detection 2/Low
current detection (Operation
level)
Current detection 2/Low
current detection
(Timer time)
Motor sound (Carrier
frequency)
Display coefficient for
transport time
Stop frequency (Holding time)
Torque limiter 1 (Driving)
LED monitor (Display
selection)
Torque limiter 1 (Braking)
LED monitor (Display when
stopped)
Current limiter (Operation
selection)
LED monitor details
(Speed monitor selection)
Current limiter (Operation
level)
Torque Command Monitor
(Polarity selection)
Display coefficient for speed
monitor
Frequency detection 3
(Operation level)
Current detection 3 (Operation
level)
Analog input adjustment
(Terminal [12]) (Filter)
Current detection 3 (Timer
time)
Analog input adjustment
(Terminal [C1] (C1 function))
(Filter)
Reference loss detection
(Continuous running
frequency)
Analog input adjustment
(Terminal [V2]) (Filter)
DC link bus low-voltage
detection level
Analog input adjustment
(Terminal [C1] (V3 function))
(Filter)
Torque detection 1 (Operation
level)
Torque detection 1 (Timer
time)
Torque detection 2/Low torque
detection (Operation level)
Torque detection 2/Low torque
detection (Timer time)
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