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Selection and protection of a motor
(4) Tune second applied motor
· When you want to switch two motors with one inverter, set the second motor in Pr. 450 Second applied motor.(Initial
setting is without second applied motor. (Refer to page 187))
Perform tuning using Pr. 574 Second motor online auto tuning.
Pr. 574 Second motor online auto tuning is valid when the RT signal turns ON.
Parameter
Number
Description
51
Used as rated motor current and electronic thermal relay
parameters.
450 Applied motor
453
Motor capacity (down to one rank lower than the inverter
capacity, note that the capacity should be 0.4kW or higher)
454 Number of motor poles
REMARKS
· The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 235.)
The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.
CAUTION
· Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 9 Electronic thermal O/L relay Refer to page 183
Pr. 71 Applied motor Refer to page 187
Pr. 80 Motor capacity Refer to page 92
Pr. 81 Number of motor poles Refer to page 92
Pr. 96 Auto tuning setting/status Refer to page 189
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 231
Pr. 190 to Pr .196 (output terminal function selection) Refer to page 239