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Post by bswaybar on Mar 17, 2009 14:57:35 GMT -5
Just bought this unit from an individual, it has never been used, he bought 2 and went out of business before running the new one. I have not hooked it up to a PC yet because I am waiting on it from Dell. But when I plug it in the relays click real fast and sound like a small electric engraver....it goes away when I touch the circuit board with my finger. Is this normal? Am I jumping the gun and plugging it in before hooked to a PC? Or is there possibly something wrong with this unit? There is no physical damage to anything, wires unplugged or anything I can see. The unit is literally new and un used. Any help/advise/recommendations is appreciated!
Brian
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Post by georgemyers on Mar 17, 2009 17:19:11 GMT -5
Brian, you might want to check for a cold solder joint on the board.
I just checked my HS1, I disconnected the computer and applied power.
The only noise I hear is one click of a relay and the status led lights when I turn it on by the Emergency stop button.
After that there is no sound coming from the HS1.
george
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Post by romaxxcnc on Mar 17, 2009 18:26:02 GMT -5
Hi Brian,
With no PC connected, the onboard relays float (nothing to hold them in state).
Thanks, Ron
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Post by bswaybar on Mar 17, 2009 19:08:21 GMT -5
Hi Brian, With no PC connected, the onboard relays float (nothing to hold them in state). Thanks, Ron So this sound will go away with a PC connected? Brian |
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Post by bswaybar on Mar 17, 2009 19:08:49 GMT -5
Brian, you might want to check for a cold solder joint on the board. I just checked my HS1, I disconnected the computer and applied power. The only noise I hear is one click of a relay and the status led lights when I turn it on by the Emergency stop button. After that there is no sound coming from the HS1. george Hmmmmmmmmm  |
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Post by romaxxcnc on Mar 17, 2009 20:25:36 GMT -5
Sorry, should have explained better. Only some of the interfaces do it and not all the time. As you say, you can touch the board and it stops. I don't know what that is, possibly the ground plane is picking up a slight ground through your fingertip?? The board ground is PC ground. No PC, no ground. Everything floats. It will stop when you connect a PC. It's a very common thing. The encoder boards almost always do it without a PC connected.
Thanks, Ron
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Post by bswaybar on Mar 18, 2009 8:43:47 GMT -5
Sorry, should have explained better. Only some of the interfaces do it and not all the time. As you say, you can touch the board and it stops. I don't know what that is, possibly the ground plane is picking up a slight ground through your fingertip?? The board ground is PC ground. No PC, no ground. Everything floats. It will stop when you connect a PC. It's a very common thing. The encoder boards almost always do it without a PC connected. Thanks, Ron Thank you for the information, thought it was wierd but I am dumb when it comes to this stuff so I will have a learning curve obviously! Thanks again!! Brian |
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Post by romaxxcnc on Mar 18, 2009 11:49:10 GMT -5
Hi Brian,
You're welcome, and if have any other questions feel free.
Thanks, Ron
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