The PSM24-BCM360S has a 'power ok' contact that you can input into the switch contact on a site monitor and it will alert you when you lose AC power. You shouldn't need to use a separate power brick. I know that is the Rhino version, but I thought it was identical to the Traco. Maybe we are talking about different devices?
On Sat, Apr 2, 2016 at 11:40 PM, Ken Hohhof <[email protected]> wrote: > OK, maybe that's right. I was looking at the spec sheet for the TSP which > says there is a remote on/off input. But maybe that's the connector that > goes to the BCM. I've never tried to use it as a remote on/off. Maybe it > could still be used that way with the BCMU, since it doesn't control the > TSP voltage the way the BCM does. > > > -----Original Message----- From: George Skorup > Sent: Saturday, April 02, 2016 11:51 PM > > To: [email protected] > Subject: Re: [AFMUG] Traco BCMU360 > > I'm not aware of a shutdown contact on a TSP supply. It has three "DC > OK" contacts on the top terminal block (C/NO/NC relay). I think the > 2-pin header is an analog (or digital?) control circuit for BCM control > only. When you hit the off switch (or remote shutdown) on a regular BCM, > it sends the shutdown signal to the TSP through that 2-pin remote link > cable. > > Maybe *I'm* missing something. I don't know, you're smarter than me. > > On 4/2/2016 11:38 PM, Ken Hohhof wrote: > >> I'm saying the TSP has its own remote shutdown input, so you could take a >> second relay output and control the TSP. I don't know if you could >> parallel them. >> >> -----Original Message----- From: George Skorup >> Sent: Saturday, April 02, 2016 11:26 PM >> To: [email protected] >> Subject: Re: [AFMUG] Traco BCMU360 >> >> No, the BCMU360 does not have the remote control capability for a TSP >> power supply. That's the regular BCMs. The 2-pin remote link cable lets >> the BCM adjust the TSP's output voltage as well as the shutdown signal. >> >> I typically wire up a SiteMonitor base with the pwr1 input connected to >> the main DC rail. And pwr2 gets a 12 or 24V brick for monitoring >> utility. If I used the 'cycle' function on a relay, the base unit is >> still powered by the brick. In an outage situation, yes, pwr2 would be >> dead, but it's still powered by the BCM. If at that point I cycled the >> relay that closes the shutdown contact, then yeah, the base would shut >> down immediately after that. All relays would return to their normal >> positions. Power would restore (whenever the hell they get around to it) >> and everything should come back up. >> >> This is just theoretical, I won't actually be doing this. I want stuff >> to run as long as possible. Screw the batteries. >> >> On 4/2/2016 11:11 PM, Ken Hohhof wrote: >> >>> If you are powering the BCMU from a TSP series power supply, they also >>> have remote shutdown. >>> >>> I'm having a little trouble though wrapping my head around the concept >>> of remote shutdown if the device commanding the remote shutdown (or the >>> wireless gear and router that gives you remote access) need power. How is >>> that going to work? I must be missing something. >>> >>> >>> -----Original Message----- From: George Skorup >>> Sent: Saturday, April 02, 2016 10:59 PM >>> To: [email protected] >>> Subject: [AFMUG] Traco BCMU360 >>> >>> FYI on this thing. The "remote shutdown" contact is an internal battery >>> disconnect ONLY. The regular BCM24/48/A is a true shutdown and battery >>> disconnect. I'm glad I tested this at one of the BCMU sites a couple >>> weeks ago. Close it, relay clicks, everything is still on. Remove input, >>> everything shuts off. Restore input to bring everything back up. Not >>> sure how useful this is. I suppose if you're paranoid about ruining the >>> battery from deep discharge (has LVD though). Power is out, close the >>> contact and everything goes down immediately. Power comes back and it >>> *should* come back up. Should meaning whatever you have closing that >>> contact doesn't make it permanent. >>> >>> >> >> > >
