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#10339 - 04/11/14 02:24 AM Northern Northstar 9000/ TC 3200  
Joined: Jul 2013
Posts: 198
NewMech Offline
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NewMech  Offline
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Joined: Jul 2013
Posts: 198
I have a simplex Northern car, not sure if it is a Northstar 9000 or TC 3200; no name plate on the controller. I have an installation guide that has both names.
The car is driving through the brake. It has a Thyssen geared machine, two brake coils in series; they ohm out fine and wiring back to the controller is good. Neither of my brake relays are picking, power to pick the relays comes from a side contact of the main contactor and that ohms out fine. When I checked power from the side contactor to the brake board, I only had 7 vac, I should have 120 vac. WIth the connector unplugged, I get 120 vac.
I figured that something was screwy on the brake board, so I ordered another. Installed the new board today, car still drives through the brake. I found a battery behind the relay board for the sheave jammer, it is split open and dead. I will replace the battery in the morning but after that I am at a loss.
I have no open fuses and I have checked all relay contacts that are in the brake circuit. Any ideas?

#10340 - 04/11/14 08:55 AM Re: Northern Northstar 9000/ TC 3200 [Re: NewMech]  
Joined: Aug 2011
Posts: 563
uppo72 Offline
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uppo72  Offline
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Joined: Aug 2011
Posts: 563
What is a sheave jammer? Is the battery connected to the board? Something is definitely drawing down the volts.

#10343 - 04/11/14 02:56 PM Re: Northern Northstar 9000/ TC 3200 [Re: uppo72]  
Joined: Feb 2013
Posts: 757
john jay Offline
old hand
john jay  Offline
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Joined: Feb 2013
Posts: 757
ohio
when you say driving through the Brake, you are indicating you have field current and armature voltage. do you in fact have voltage to the motor brush rigging?

#10345 - 04/11/14 09:23 PM Re: Northern Northstar 9000/ TC 3200 [Re: uppo72]  
Joined: Jul 2013
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NewMech Offline
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NewMech  Offline
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Posts: 198
Originally Posted By: uppo72
What is a sheave jammer? Is the battery connected to the board? Something is definitely drawing down the volts.


Ascending overspeed brake, like a rope gripper

#10346 - 04/11/14 09:26 PM Re: Northern Northstar 9000/ TC 3200 [Re: john jay]  
Joined: Jul 2013
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NewMech  Offline
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Joined: Jul 2013
Posts: 198
Originally Posted By: john jay
when you say driving through the Brake, you are indicating you have field current and armature voltage. do you in fact have voltage to the motor brush rigging?


I mean that the car runs at contract speed with the brake dropped. I finally got a hold of Northern; they said I need a power supply board. Voltage is present, not enough current to pick brake relays.

#10351 - 04/12/14 01:13 AM Re: Northern Northstar 9000/ TC 3200 [Re: NewMech]  
Joined: Feb 2012
Posts: 35
galaxy Offline
newbie
galaxy  Offline
newbie

Joined: Feb 2012
Posts: 35
Northern is correct about their controller. Its the HVS 9603 I/O Supply board. I've seen that happen many times with a Northern


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