Reply to thread

Message

<blockquote data-quote="Hal Harrison" data-source="post: 4253" data-attributes="member: 1052">Hello all,My partner and I just finished a long weekend full of shows. We were using 2 Yamaha LS9-32 (1 FOH and 1 MON) each attached to its own APC UPS. All of the audio was being powered using a standard 25kVA generator from United Rentals. We setup and began sound checks around 3PM for several different bands and everything was working great until the 1st opener started. About half way through the first set the FOH LS9 rebooted itself. I thought at first it was just a digital hiccup (although I have never had a problem with the desk doing anything like this before). As soon as the LS9 rebooted, audio once again began passing through the console. Hoping this was just a hiccup, we continued on through the first opener. For the second opener during their first song the LS9 on monitors rebooted as well. Shortly thereafter, the FOH LS9 once again rebooted and within 2 miuntes of coming back up it rebooted again. At this time, it was apparent something was quite wrong. Since it was not an isolated incident (both MON and FOH consoles doing the exact same thing) we figured it was something with the power. The thing was - we have run our LS9s off generators dozens of times with no problems. In an effort to troubleshoot, we let the second opener finish the song they were on and they took a 3 min break so we could quickly check the generator and took out each UPS attached to the LS9s. After that, we didnt have a single issue for the rest of the night or the weekend for that matter. This all of course begs the question, has anyone had any similar experiences with digital desks w/UPS&#039;s attached running off a generator?Interested in your responses,Hal</blockquote>

[QUOTE="Hal Harrison, post: 4253, member: 1052"] Hello all, My partner and I just finished a long weekend full of shows. We were using 2 Yamaha LS9-32 (1 FOH and 1 MON) each attached to its own APC UPS. All of the audio was being powered using a standard 25kVA generator from United Rentals. We setup and began sound checks around 3PM for several different bands and everything was working great until the 1st opener started. About half way through the first set the FOH LS9 rebooted itself. I thought at first it was just a digital hiccup (although I have never had a problem with the desk doing anything like this before). As soon as the LS9 rebooted, audio once again began passing through the console. Hoping this was just a hiccup, we continued on through the first opener. For the second opener during their first song the LS9 on monitors rebooted as well. Shortly thereafter, the FOH LS9 once again rebooted and within 2 miuntes of coming back up it rebooted again. At this time, it was apparent something was quite wrong. Since it was not an isolated incident (both MON and FOH consoles doing the exact same thing) we figured it was something with the power. The thing was - we have run our LS9s off generators dozens of times with no problems. In an effort to troubleshoot, we let the second opener finish the song they were on and they took a 3 min break so we could quickly check the generator and took out each UPS attached to the LS9s. After that, we didnt have a single issue for the rest of the night or the weekend for that matter. This all of course begs the question, has anyone had any similar experiences with digital desks w/UPS's attached running off a generator? Interested in your responses, Hal [/QUOTE]

Verification