Miprom 21 45 25 18

Guest · 2016-07-08T00:16:00Z

I have been fighting this one for going on 3 months now. I hope someone has seen this before. I have found the car in the pit with the doors wide open, 4' above the bottom floor, at 2nd and 3rd floor. It will run for about a week with no faults then go down with this string of motion faults, no drive faults and looking back through my notes it has always been going up. It will have a 121 *45 *25 18 then immediately after it will shut down on retries in search mode 431 *45 *25 18. The 2nd digit for the profile is not constant. I have replaced the car top encoder, the roller is plumb and tight to the rail, I've cleaned the rail and wheel. I've replaced the Zap board and both vane readers and re-grounded the whole car (the ground going to the car top had never been landed in the COP.) I have tuned up the velocity scaling and replaced every relay in the controller and the aux. contractor contacts. And no matter what I do I can't recreate it, not removing VC and letting it coast or opening the arm. loop. It's getting an MSU and NTS board in the morning and I have a car top encoder assembly on order for a very slight tick in the bearing.Thanks for any help.

Page 2 / 2 Prev

Technical Questions

Last Post by Anonymous 1 week ago

18 Posts

1 Users

0 Reactions

17.3 K Views

RSS

Indirtwetrust

(@Indirtwetrust)

Joined: 1 second ago

Posts: 0

Topic starter 30/07/2016 7:34 am

Okay, 3 weeks today, it's fixed!
Thanks for all of your input.

ReplyQuote

jkh

(@jkh)

Joined: 1 second ago

Posts: 0

31/07/2016 3:14 am

Nice job, thanks for sharing...

ReplyQuote

Smitty

(@Smitty)

Joined: 1 second ago

Posts: 0

12/08/2016 11:46 pm

Hopefully you got it. I can tell you of something else I have seen. The A-channel of the position encoder sends speed feedback to the Net Box. I had a noise problem in which the pulse width modulation of the door operator being used was being picked up by the ETS speed sensors. This was causing the 150 ft/min sensor to trip as the car got into the floor. I ended up rerouting the shielded pairs TC wires from the encoder and added ferrite beads around each pair.

ReplyQuote

Page 2 / 2 Prev

13 Forums
7,385 Topics
41 K Posts
3 Online
1 Members

Forum Icons: Forum contains no unread posts Forum contains unread posts

Topic Icons: Not Replied Replied Active Hot Sticky Unapproved Solved Private Closed

Miprom 21 *45 *25 18

Miprom 21 45 25 18