Rockwell Automation Publication 750-TG101A-EN-P - June 2022 7
AC Precharge Circuit Board (400/480V) Replacement. . . . . . . . . . . . . . 161
Remove the AC Precharge Circuit Board (400/480V) . . . . . . . . . . . 161
Install the AC Precharge Circuit Board (400/480V) . . . . . . . . . . . . . 169
DC Precharge Circuit Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . 170
Remove the DC Precharge Circuit Board . . . . . . . . . . . . . . . . . . . . . . 170
Install the DC Precharge Circuit Board . . . . . . . . . . . . . . . . . . . . . . . 178
Appendix A
Start Up After Repairs Before You Apply Power to the Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
No-load DC Bus Voltage and Output Current Measurements. . . . . . . 180
Appendix B
Schematics List of Drive Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
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