2.2 Wiring
2-32
2.2.6 Switching connectors
îš„ Power supply switching connector "CN UX" (400 V class series with 75 kW or above)
The power supply switching connector "CN UX" is equipped on inverters of 75 kW or above in 400 V class series.
When the power supply connecting to the main power supply input terminals (L1/R, L2/S, L3/T) or the auxiliary
power input terminals for the fan (R1, T1) meets the following requirements, move the connector CN UX to U2
side. Otherwise, leave it on the U1 side, which is the factory default.
For details on the switching procedure, refer to Figures 2.2-28 and 2.2-29 appearing on the following pages.
(a) For FRN75G1S-4J to FRN110G1S-4J
Setting
Applicable
voltage
398 to 440 V/50 Hz, 430 to 480 V/60 Hz
(Factory default)
380 to 398 V/50 Hz, 380 to 430 V/60 Hz
(b) For FRN132G1S-4J to FRN630G1S-4J
Setting
Applicable
voltage
398 to 440 V/50 Hz, 430 to 480 V/60 Hz
(Factory default)
380 to 398 V/50 Hz, 380 to 430 V/60 Hz
The allowable voltage range is +10% and -15%.
CN UX (red)
CN UX (red)
CN UX (red)
CN UX (red)
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