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Post by rogersch on Oct 24, 2014 19:10:06 GMT -5
Today I received my XMC-1 which replaces the UMC-1. In my setup with the UMC-1 I used a "heavy duty" Master/Slave power strip to power my 5 external power amplifiers. As soon as I switched on the UMC-1 the Master/slave power strip would power the amplifiers. That worked great. I would like to use the same setup with the XMC-1 but unfortunately when powering up the XMC-1, from low energy use, there are three very loud plops coming out of my speakers and sub-woofer as soon as the boot process is finished. See also linkOne possible way to prevent this problem is to use the 12 volt trigger outputs to power up/down the amplifiers. Unfortunately my amplifiers don't have a 12 volt trigger sensing circuits. So I would like to, preferably, buya power strip which uses the 12 volt trigger output to switch on/off the outlets. The Xantech AC1 is such a solution but I need one which in can use in Europe (with Schuko or CEE 7/4 connector and 230 Volt AC). Does anybody know if a such a ready made solution exists? Alternatively I could made one myself but then does anybody has a detailed schema of how to build it. My main problem is which relais is suitable to be used. This relais should be able to switch 16 Amp @ 230 V AC but the input coil of 12 volt should not draw more than 30 mA (estimate). Unfortunately the XMC-1 manual doesn't state the maximum current a trigger output can deliver. I took this 30 mA from the manual of my old Arcam receiver. Also the provided solution should work correctly on the XMC-1 with it's trigger output problems. Who can help? |
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Post by ansat on Oct 24, 2014 19:38:37 GMT -5
Before you try that expense. Set the XMC to default boot to an unused input. Adjust that input so that the triggers are off. then switch to an input that turns on the amps. Do the thumps still exist?
Tony
Ha - have to read better before I post.
Did you build the Ncore's yourself?
Tony
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Post by ansat on Oct 24, 2014 19:56:07 GMT -5
If so, I am seeing some use of the nAMPON being used to create a trigger. It looks like tied to ground activates the amps Since its low voltage, a cheap relay should be sufficient. you could use the 12v trigger to activate a relay that passes ground.
Tony
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Post by brijenjas on Oct 24, 2014 20:05:08 GMT -5
It looks like you have all the specs for a relay except the XMC1 trigger out rating to be able to make your own.
That's the route I took even though I have a BITS smart strip. I used a solid state relay I found on epay.
Just email Emotiva and ask them what the 12v trigger output max is.UMC-200 is max 100ma.
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I had emailed Lonnie with the same question about one of the UMCs(I don't remember which one200 or 1) and he got back to me within 2 days.
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Post by Priapulus on Oct 24, 2014 21:23:13 GMT -5
Alternatively I could made one myself but then does anybody has a detailed schema of how to build it. My main problem is which relais is suitable to be used. This relais should be able to switch 16 Amp @ 230 V AC but the input coil of 12 volt should not draw more than 30 mA (estimate). Unfortunately the XMC-1 manual doesn't state the maximum current a trigger output can deliver. I took this 30 mA from the manual of my old Arcam receiver.
I have two PanaMax-1000 surge protector/powerbars that I use for my HT and Stereo. I opened them up and installed a Solidstate relay. It takes 4 to 32 volts dc input (like the UMC-1 trigger); the input is wired to a standard trigger connector. It switches up to 40 amps at 120v AC. I have two outlets always on, the rest are switched by the SSRelay. The relay can be overridden by the front power switch.
MY SSR was a Shining SSR-S40DA, but there are many choices available online. The SSRelay is the white box in the photo.
Sincerely
/b
photo: emotivalounge.proboards.com/attachment/download/7935
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Post by rogersch on Oct 25, 2014 0:38:31 GMT -5
Alternatively I could made one myself but then does anybody has a detailed schema of how to build it. My main problem is which relais is suitable to be used. This relais should be able to switch 16 Amp @ 230 V AC but the input coil of 12 volt should not draw more than 30 mA (estimate). Unfortunately the XMC-1 manual doesn't state the maximum current a trigger output can deliver. I took this 30 mA from the manual of my old Arcam receiver.
I have two PanaMax-1000 surge protector/powerbars that I use for my HT and Stereo. I opened them up and installed a Solidstate relay. It takes 4 to 32 volts dc input (like the UMC-1 trigger); the input is wired to a standard trigger connector. It switches up to 40 amps at 120v AC. I have two outlets always on, the rest are switched by the SSRelay. The relay can be overridden by the front power switch.
MY SSR was a Shining SSR-S40DA, but there are many choices available online. The SSRelay is the white box in the photo.
Sincerely
/b
photo: emotivalounge.proboards.com/attachment/download/7935
Thanks I'll take a look at a Solid State relais option. |
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Post by rogersch on Oct 25, 2014 4:29:58 GMT -5
Before you try that expense. Set the XMC to default boot to an unused input. Adjust that input so that the triggers are off. then switch to an input that turns on the amps. Do the thumps still exist?
TonyHa - have to read better before I post. Did you build the Ncore's yourself? Tony Yes I did. |
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Post by rogersch on Oct 25, 2014 4:40:32 GMT -5
If so, I am seeing some use of the nAMPON being used to create a trigger. It looks like tied to ground activates the amps Since its low voltage, a cheap relay should be sufficient. you could use the 12v trigger to activate a relay that passes ground. Tony Hi Tony, thanks for the suggestion. I also considered this route but there are imho two drawbacks to this: 1] I've build five mono blocks. This means I have build 5 of these solutions and need to be able to accommodate this in the existing NCore housing. 2] The SMPS600's are then still powered on. I've a clear preference to automatically disconnect the mains power of all the 5 mono blocks. That is why, also in my current setup I switch the 230 volt mains of all the 5 mono blocks. I'm using in inrush current limiter to limit the current when switching on all the 5 mono blocks at once. Again thanks for suggestion a solution.  |
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Post by rogersch on Oct 31, 2014 14:51:28 GMT -5
Made my own power strip with a 12 volt trigger. Used a Panasonic AQA411VL Solid State Relais of 25 A.  Please note the SSR part of the Power Strip is covered with a piece of transparant plastic. Works great. As my power amps are switched on after the boot sequence of the XMC-1 I don't have the problem of the loud pops at start up. |
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Post by linvincible on Nov 2, 2014 12:27:51 GMT -5
Made my own power strip with a 12 volt trigger. Used a Panasonic AQA411VL Solid State Relais of 25 A. Please note the SSR part of the Power Strip is covered with a piece of transparant plastic. Works great. As my power amps are switched on after the boot sequence of the XMC-1 I don't have the problem of the loud pops at start up. well done, did just the same one month ago but ony with a 16A relais since it was only for sources that didn't have a trigger input or remote capabilities. I even added a second one, with opposite wiring and mounted in series with the first one, triggered by the trigger out of my XPA-3. That was my stereo sources are turned off when I'm in home cinema mode! (didn't have enough trigger out from HT preamp to do all that) |
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