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Forum Discussion
PoE doesn't start_GS308EP
We use the GS308EP to manage 2 differents VLAN in our custom system. the port 1 is used to power on a RFID reader (FEIG MR102), the others ports are for classic ethernet commnication. We configu...
Hi,
thank you for the interest you give to our issue.
If it can help more, here is the ref of the inverter: APC; BX2200MI-FR
We already investigate the possibility of an issue from the inverter, but we validate the fact that even directly connected to the circuit breaker, without the inverter in the circuit, the issue occurs.
We thought about the behavior of the circuit breaker, that was why we change the type of the circuit breaker from AC to A (apparently more suitable for our system, the switch in particular with its PoE function). The initial tests were conclusive, but throughout the tests, the initial issue came back. To such an extent that even power from a wall outlet, PoE didn't even start anymore.... The switch was in a state that even by restarting it, the issue occurs everytime.
And a collegue of mine came like 1 hour after me, and then said to me "Is ok the system works fine the PoE launch as expected".
That circuit breaker is making a direct connection from the AC mains to the Inverter output?
To be precise, between the AC mains and the inverter, there is an auxiliar outlet intern of our system (ABB 2CSM110000R0711). The inverter is plugged in the outlet which is downstream the circuit breaker.
How is the inverter output kept synched to the 50 or 60 Hz mains?
We don't know how is it managed, but from the datasheet of the inverter it seemed it is manage, one way or another.
If it can help more, here is the ref of the inverter: APC; BX2200MI-FR
Just an industry standard APC Back-UPS, off-line, 2200VA, Protection from power outage, 230V, 4x CEE 7/5 French Schuko outlets, Automatic voltage regulation
Off-line means the
Still read and understand there seems to be a circuit breaker interconnecting the AC mains input with the output side of the APC UPS?
The ABB component is just a DIN rail mounted connector. The power is coming from where in your design - AC mains or from one of the four APC UPS outlets?
Still don't fully get the electrical design intent.
Would you mind to provide some schematics of the key components in your system please?
Are you trying to deal (or work around) the disadvantages of this offline ups with sone added a circuit breaker and sone cabling bringin the AC mains direct to the UPS outlet, where the off-line characteristics not natively offer zero transfer time as the transfer of such devices varies between 3 to 8 milliseconds? However, the popularly known value is 5 milliseconds. Due to this reason, these are used with small or non-critical loads that may handle this small amount of disruption.
Thank you for your interest,
We can not share the complete and details documentation, but we made a schematic which we hope that will help to understand the architecture of our design
I understand the interrogation about the specification around the inverter, and it was one of the first element we tested during our investigation. The thing is with the switch plugged directly on the input power source, without the inverter in the loop, the issue stoll occur.
(I've prepared a schematic but it seems that it take way too long to downloadit in the message to be normal....any idea why đ ?
I've prepared a schematic but it seems that it take way too long to downloadit in the message to be normal
It's a bug in forum software. It's been reported to Netgear, but so far they are silent on the fix plans.
What you can do instead is upload the schematic to cloud storage, and then include a link in your post. Make sure the permissions allow anyone with the link to download without needing to request access.
we made a schematic which we hope that will help to understand the architecture of our design
Merci bien CorentinFâ - it's the very standard way a UPS will be deployed in a house, in an office, or often integrated in some products as yours. No magic design "addons" involved potentially (I've seen many timey before) causing issues.
Fair enough, I can't see the schematic this minute again just before starting this reply. Tough no idea tough, why the various ways of starting-up the switch should or could make a difference to the PoE device, or the PoE power on the switch in general.
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