5.3 Description of Function Codes 5.3.6 A, b, r codes (Motor 2 to 4 parameters)
5.3.6 A, b, r codes (Motor 2 to 4 parameters)
FRENIC-MEGA allows you to switch between 4 motors and perform operation using the same inverter. Furthermore,
operation can be performed by switching the control parameters and control method even for a single motor. These
changes are made using terminal commands “M2”, “M3”, and “M4”.
(Function codes E01 to E09, data = 12, 36, 37)
Including function codes commonly applied to motors 1 to 4.
The switching operation with “M2”, “M3”, and “M4” is made in order of priority from motor 1 to 4 using the following
combinations. By switching the motor, the respective function codes will change, and the motor will be controlled
based on the new function codes. “SWM1”, “SWM2”, “SWM3”, and “SWM4” can be output as digital signals used
to indicate the selected motor.
(Function codes E20 to E23 and E27, data = 48 to 51)
Induction motor control only. This manual describes function codes applied to motor 1 only. For ones
applied to motors 2 to 4, refer to the corresponding function codes for motor 1 in Table 5.3-21.
Synchronous motor control is possible only for motor 1. If changes are not made to the inverter output
wiring when switching to induction motor control for motors 2 to 4, synchronous motors will be driven by
induction motors, possibly leading to motor damage, and therefore caution is advised.
It is necessary to confirm “M2”, “M3”, and “M4” within 1 ms of the run command being confirmed.
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