text: <s>[INST] Powerflex 700H - DC bus bar issue Hi all, I am having an issue with a variable speed drive 700H. On the HIM, I am reading a fluctuating value of DC volts. that's the voltage is not fix at 525 VDC instead it fluctuates from 0 to 162 VDC. When I use a multimeter to measure the DC bus bar voltage, I get 525 VDC. Additionally, on top of the HIM its written in precharge. The drive won't start. Please guide me through this [/INST] Welcome to Engage! You can find some indications in the following technote: QA56099 I suggest to contact Technical Support to investigate further. fuzzy logic Please don't forget to use the LIKE button and highlight the decisive answer : REPLY > Make Best Answer​ \\n </s>