text: <s>[INST] Kinetix 5500 stuck at precharge when servo motor is connected. I have kinetix 5500 with VPL-B1153F-P motor. When I disconnect the servo motor cable and give 24VDC and 480VAC drive stars up and DC bus voltages rises to 700V. Now when I connect the motor cable to the drive and give 24VDC and then 480VAC, the drive gets stuck at precharging state and DC bus voltage stays at 0.2V. I can't understand why it is doing this and why connecting the motor will stop the DC bus from charging. I would appreciate if anyone can help me with this. Thanks [/INST] Hello Hem Shah Could you please give me the actual FW revision of this drive,please ? And also tell me if the installation was working or if it's a new installation in startup ? Check also this article on QA20119 on our Knowledge base. regards \\n </s>