5.3 Description of Function Codes 5.3.6 A, b, r codes (Motor 2 to 4 parameters)
Motor/parameter switching 2, 3, 4 (Operation selection)
Related function code: d25 ASR switching time
Function codes A42, b42, and r42 determine whether the switching operation with “M2”, “M3”, and “M4” actually
switches the motor, or switches the control parameters (function codes).
Table 5.3-20
Motor switching: Switching to motor 2, motor 3 or motor 4
Parameter switching: Switch to control function code data for the same motor
such as turning energy saving operation ON and OFF, or changing the speed
control system PI
Possible even during
operation
If motor switching is set, the function codes in the following table are switched.
Table 5.3-21 Function codes to be switched
Rated voltage at base frequency
Electronic thermal overload protection for motor
(Select motor characteristics)
DC braking (Braking starting frequency)
Load selection/auto torque boost
/auto energy-saving operation
Starting frequency (Holding time)
Stop frequency (Detection method)
Stop frequency (Holding time)
Motor constants (No. of poles)
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