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.
