Yaskawa GPD 506/P5 Section One - Manual (Page 16)

PP.P5G5.01.Troubleshoot
Page 16
Rev. 06/11/2003
Input Diode Check
Test Equipment - Analog Ohmmeter Set to R X 1 Scale
or Digital Multimeter set to the Diode Check.
Voltage Model Connector (-) DC bus (+) DC bus
230V 18kW & 22kW 19CN Pin 1 Pin 5
30kW ~ 75kW 26CN Pin 5 Pin 1
460V 18kW ~ 45kW 19CN Pin 1 Pin 5
55kW ~ 160kW 26CN Pin 5 Pin 1
For GPD 506/P5 inverters with 12 pulse input, follow the diode check procedure
also checking terminals L11, L21, and L31. Refer to the following list for a test point
for the (-) DC bus and (+) DC bus.