Bently Nevada 3300 Vibration Monitor & TDXnet 1

[ScottyUK]

Not strictly a 'motors' post but probably close enough in here.

We have a fairly large system (4 racks) of Bently Nevada 3300 gear monitoring our steam turbine generators. The racks connect to the TDXnet data processor using a couple of cables, a 25 pin D on the 'Dynamic' port and a 15 pin D on the 'Static' port. I am looking for a bit of information on the cable construction: I can bell it out pin for pin, but are there any paired cores twisted together and what are the shielding arrangements? I am looking to make up extended cables to accommodate some modification work at site, and the eternally unhelpful B/N list it as 'engineered proprietary' and give no detail in the documentation I have. It's a cable FFS, what the hell is so secret about it? Furthermore their infernal website requires you to have a service agreement just to access the documentation for the products you have bought, which is a disgrace that I hoped GE might have put an end to but alas...

I'm reluctant to chop a cable in half to investigate its makeup, so if anyone has that info handy I would be very grateful.


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If we learn from our mistakes I'm getting a great education!

 

[bklauba]

Does it have any markings on the cable?? I went to our cable "tripe" bin, and fished out a lop-off from a recent construction that included at 25 pin D connector, and the marking on the cable is:

"AWM E101344 STLE 2464 VW-1 300 V 80 (degrees) C SPACE SHUTTLE-C" (Degree sign instead of spelt out.)

BK

 

[davidbeach]

"AWM E101344 STLE 2464 VW-1 300 V 80 (degrees) C SPACE SHUTTLE-C" (Degree sign instead of spelt out.)

You mean like:

"AWM E101344 STLE 2464 VW-1 300 V 80[°] C SPACE SHUTTLE-C"

When typing your message click on the Process TGML link and you will find all sorts of wonderful stuff. The [°] is achieved by typing [ignore][°][/ignore]. The [ignore][ignore][/ignore] tag and its end tag [/ignore] are quite useful for showing what to type.

 

[ScottyUK]

I will need to check the markings on Monday - I was typing this from home. Would be very helpful if you have a cable in the scrap bin.

Thanks.


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If we learn from our mistakes I'm getting a great education!

 

[bklauba]

The cable I described has foil shield with drain, and 25 untwisted stranded conductors, each with distinctive colors (colours?) and stripe combos. There is a mild "pitch" to the collection of these, perhaps 1 rev / 100 mm, or so.

Hope this helps!

BK

 

[ScottyUK]

bklauba, you are a star. I wonder what the chances of every cable being at an angle where the markings were hidden are? They are standard Belden types, I just need to confirm pinning information and any links between pins. I'll post the results up here so anyone who is interested in the future has it for reference.


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If we learn from our mistakes I'm getting a great education!