Wiring The Main Circuits - YASKAWA FSDrive-MV1S Instructions Manual

A line-to-line voltage drop must be taken into consideration when selecting wire size.
Determine the wire size for the main circuit so that the line-to-line voltage drop is within 2% of the rated volt-
age. The line-to-line voltage drop is calculated as follows.
IMPORTANT
Line-to-line voltage drop (V) =

Wiring the Main Circuits

This section describes wiring for the main circuit inputs and outputs, and grounding.
Make sure, for each terminal code, to correctly connect the input terminals to the power supply and the output
terminals to the load.
Incorrect wiring of I/O terminals will damage the Inverter when the power supply is
turned on, and may result in injury.
CAUTION
Wiring the Main Circuit Input Terminals
Observe the following when wiring the main circuit input terminals.
Terminal Block Construction and Cable End Processing
Prepare appropriate cable brackets for the cable size.
Connection to the Terminal Block
The input power supply can be connected to any of terminals R, S, or T on the terminal block, as the phase
sequence of input power supply is irrelevant to the phase sequence. However, we recommend that you connect
in the same sequence as the input power supply for product maintainability.
3
x Wire resistance (Ω/km) x Wire length (m) x Current (A) x 10
Wiring Main Circuit Terminals
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