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Satellite Systems - What to Buy - What to install
Vbox 3 and actuator wiring
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<blockquote data-quote="ArloG" data-source="post: 1163190" data-attributes="member: 418555"><p>The reasoning is that the Crydom is self contained with Schmitt trigger and zero crossing switching.</p><p>Probably not told was I used a RC parallel network on the output of the SSR with a 'scope to look at the square wave pules and changed values. Actually used a pot wired as a voltage divider to determine the final resistor value.</p><p>Initially the output pulses weren't flat topped. The actuator encoder would trigger the SSR and the output spiked.</p><p>So cleaning it up for consistent, nice, clean square waves worked out nice.</p><p>Mind you. My slotted optical encoder wheel provides many more pulses than the standard 6 pole magnet that is standard in actuators.</p><p>Folks like Von Weise and Venture do allow you to configure an actuator for high res. encoders. But I believe 6 ppr of the output shaft is the norm.</p><p></p><p>And because of the higher resolution encoder. I found that there were miscounts. Usually when 'bumping' the actuator to get the best signal during initial signal finding and storing positions.</p><p>My ASC1 turns the counter off as soon as the H bridge relays are released. So any motor coast would 'skip a beat'.</p><p>It accumulated over time. That's why it's important to establish at least one satellite as the 0 counter sat.</p><p>I only found that out when I got a bit more experienced.</p><p>Before. When sync. got off a bit. I would go-to my favorite sat. Then unbolt the motor from the tube and vice grip the actuator shaft to peak signal again. Then slap the motor back on. I was like 'duh' after learning how resync worked.</p><p></p><p>I guess one other reasoning of using a stand alone SSR with opto is that it allows you to control your own voltage out to the actuator over cable.</p><p>Noise, impedance, reactance. The internal opto depends of its own voltage and current and getting that out to the actuator and back at a low voltage. If you can raise the voltage to a sufficient level to overcome any introduced noise and shape the output for nice, clean, pretty square waves. I think you know the answer to that.</p><p>Did you ever touch the tip of an RCA interconnect that is in a receiver phono input jack?</p><p>And do the same with an aux, tape, CD input?</p><p>What was the hum level?</p><p>Yeah!</p></blockquote><p></p>
[QUOTE="ArloG, post: 1163190, member: 418555"] The reasoning is that the Crydom is self contained with Schmitt trigger and zero crossing switching. Probably not told was I used a RC parallel network on the output of the SSR with a 'scope to look at the square wave pules and changed values. Actually used a pot wired as a voltage divider to determine the final resistor value. Initially the output pulses weren't flat topped. The actuator encoder would trigger the SSR and the output spiked. So cleaning it up for consistent, nice, clean square waves worked out nice. Mind you. My slotted optical encoder wheel provides many more pulses than the standard 6 pole magnet that is standard in actuators. Folks like Von Weise and Venture do allow you to configure an actuator for high res. encoders. But I believe 6 ppr of the output shaft is the norm. And because of the higher resolution encoder. I found that there were miscounts. Usually when 'bumping' the actuator to get the best signal during initial signal finding and storing positions. My ASC1 turns the counter off as soon as the H bridge relays are released. So any motor coast would 'skip a beat'. It accumulated over time. That's why it's important to establish at least one satellite as the 0 counter sat. I only found that out when I got a bit more experienced. Before. When sync. got off a bit. I would go-to my favorite sat. Then unbolt the motor from the tube and vice grip the actuator shaft to peak signal again. Then slap the motor back on. I was like 'duh' after learning how resync worked. I guess one other reasoning of using a stand alone SSR with opto is that it allows you to control your own voltage out to the actuator over cable. Noise, impedance, reactance. The internal opto depends of its own voltage and current and getting that out to the actuator and back at a low voltage. If you can raise the voltage to a sufficient level to overcome any introduced noise and shape the output for nice, clean, pretty square waves. I think you know the answer to that. Did you ever touch the tip of an RCA interconnect that is in a receiver phono input jack? And do the same with an aux, tape, CD input? What was the hum level? Yeah! [/QUOTE]
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Vbox 3 and actuator wiring
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