Yaskawa GPD 506/P5 Section One - Manual (Page 22)

PP.P5G5.01.Troubleshoot
Page 22
Rev. 06/11/2003
Soft Charge Resistor/Contactor
for 18kW through 160kW models
After the 230V contactor has energized, an “answer back” auxiliary
contact closes. When this contact is closed, the control board
receives a signal indicating that the soft charge contactor has
energized. If the control board does not receive this signal, the
inverter will not operate and an undervoltage fault will be displayed on
the digital operator.
Soft charge resistor
Soft charge contactor