2-23
When connecting a PWM converter with an inverter, do not connect the power supply line directly
to terminals R0 and T0. If a PWM is to be connected, insert an insulation transformer or auxiliary B
contacts of a magnetic contactor at the power supply side.
For connection examples at the PWM converter side, refer to the PWM Converter Instruction
Manual.
Figure 2.18 Connection Example of PWM Converter
9
Auxiliary power input terminals R1 and T1 for the fan
Inverters, 208 V 50HP or above and 460 V 75HP or above are equipped with these terminals R1 and T1. Only if
the inverter works with the DC link power input whose source is a power regenerative PWM converter (e.g. RHC
series), these terminals are used to feed power to the fans while they are not used in any power system of
ordinary configuration. The fan power is:
Single phase 200 to 220 VAC/50 Hz, 200 to 230 VAC/60 Hz for 208 V 50HP or above
Single phase 380 to 440 VAC/50 Hz. 380 to 480 VAC/60 Hz for 460 V 75HP or above
Ground fault circuit interrupter
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